LINEAR TECHNOLOGY sn1800 Technical data

FEATURES

■

Gain Bandwidth Product: 80MHz

■

Input Common Mode Range Includes Both Rails

■

Output Swings Rail-to-Rail

■

Low Quiescent Current: 2mA Max

■

Input Offset Voltage: 350µV Max

■

Input Bias Current: 250nA Max

■

Low Voltage Noise: 8.5nV/√Hz

■

Slew Rate: 25V/µs

■

Common Mode Rejection: 105dB

■

Power Supply Rejection: 97dB

■

Open-Loop Gain: 85V/mV

■

Available in the 8-Pin SO and 5-Pin Low Profile
(1mm) ThinSOTTM Packages

■

Operating Temperature Range: –40°C to 85°C

LT1800

80MHz, 25V/µs Low Power

Rail-to-Rail Input and Output

Precision Op Amp

U

DESCRIPTIO

The LT®1800 is a low power, high speed rail-to-rail input
and output operational amplifier with excellent DC perfor­mance. The LT1800 features reduced supply current, lower
input offset voltage, lower input bias current and higher
DC gain than other devices with comparable bandwidth.

The LT1800 has an input range that includes both supply
rails and an output that swings within 20mV of either sup­ply rail to maximize the signal dynamic range in low supply
applications.

The LT1800 maintains its performance for supplies from

2.3V to 12.6V and is specified at 3V, 5V and ±5V supplies.
The inputs can be driven beyond the supplies without
damage or phase reversal of the output.

U

APPLICATIO S

■

Low Voltage, High Frequency Signal Processing

■

Driving A/D Converters

■

Rail-to-Rail Buffer Amplifiers

■

Active Filters

■

Video Line Driver

U

TYPICAL APPLICATIO

Single Supply 1A Laser Driver Amplifier

5V

DO NOT FLOAT

V

IN

+

–

LT1800

R3

10

C1
39pF

330

Q1

Ω

ZETEX
FMMT619

IR LASER
INFINEON

R1

Ω

1

1800 TA01

SFH495

R2

Ω

The LT1800 is available in the 8-pin SO package with the
standard op amp pinout and in the 5-pin SOT-23 package.
For dual and quad versions of the LT1800, see the LT1801/
LT1802 data sheet. The LT1800 can be used as a plug-in
replacement for many op amps to improve input/output
range and performance.

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

Laser Driver Amplifier

500mA Pulse Response

100mA/DIV

50ns/DIV

1800 TA02

sn1800 1800fs

1

LT1800

V

OUT

1

V

S

–

2

TOP VIEW

S5 PACKAGE

5-LEAD PLASTIC SOT-23

+IN 3

5 V

S

+

4 –IN

+

–

WWWU

ABSOLUTE AXI U RATI GS

Total Supply Voltage (V

–

S

Input Current (Note 2) ........................................±10mA

Output Short-Circuit Duration (Note 3)............ Indefinite

Operating Temperature Range (Note 4) .. –40°C to 85°C

to V

+

) ......................... 12.6V

S

(Note 1)

Specified Temperature Range (Note 5)... –40°C to 85°C

Junction Temperature.......................................... 150°C

Storage Temperature Range ................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300°C

PACKAGE/ORDER I FOR ATIO

Consult LTC Marketing for parts specified with wider operating temperature ranges.

ELECTRICAL CHARACTERISTICS

TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

∆V
I

B

I

OS

e

n

i

n

C
A

CMRR Common Mode Rejection Ratio VS = 5V, VCM = 0V to 3.5V 85 105 dB

PSRR Power Supply Rejection Ratio VS = 2.5V to 10V, VCM = 0V 80 97 dB

2

OS

IN

VOL

UU

TOP VIEW

NC

1
–IN
+IN

–

V

S

T

Input Offset Voltage VCM = 0V 75 350 µV

Input Offset Shift VCM = 0V to VS – 1.5V 20 180 µV

OS

Input Bias Current VCM = 1V 25 250 nA

Input Offset Current VCM = 1V 25 200 nA

Input Noise Voltage 0.1Hz to 10Hz 1.4 µV
Input Noise Voltage Density f = 10kHz 8.5 nV/√Hz
Input Noise Current Density f = 10kHz 1 pA/√Hz
Input Capacitance f = 100kHz 2 pF
Large-Signal Voltage Gain VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2 35 85 V/mV

Input Common Mode Range 0 V

Minimum Supply Voltage (Note 6) 2.3 2.5 V

–

2

+

3

4

S8 PACKAGE

8-LEAD PLASTIC SO

= 150°C, θJA = 190°C/W

JMAX

8

NC

+

V

7

S

V

6

OUT

NC

5

W

ORDER PART

NUMBER

LT1800CS8
LT1800IS8

S8 PART MARKING

1800

T

= 150°C, θJA = 250°C/W

JMAX

1800I

= half supply, unless otherwise noted.

OUT

VCM = 0V (SOT-23) 300 750 µV

= V

V

CM

S

VCM = VS (SOT-23) 0.7 3.5 mV

VCM = V

S

VCM = V

S

= 5V, VO = 1V to 4V, RL = 100Ω at VS/2 3.5 8 V/mV

V

S

VS = 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2 30 85 V/mV

= 3V, VCM = 0V to 1.5V 78 97 dB

V

S

ORDER PART

NUMBER

LT1800CS5
LT1800IS5

S5 PART MARKING

0.5 3 mV

500 1500 nA

25 200 nA

LTRN
LTRP

S

P-P

V

sn1800 1800fs

LT1800

ELECTRICAL CHARACTERISTICS

TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OL

V

OH

I

SC

I

S

GBW Gain Bandwidth Product Frequency = 2MHz 40 80 MHz
SR Slew Rate VS = 5V, AV = –1, RL = 1k, VO = 4V 13 25 V/µs
FPBW Full Power Bandwidth VS = 5V, V
HD Harmonic Distortion VS = 5V, AV = 1, RL = 1k, VO = 2V
t

S

∆G Differential Gain (NTSC) VS = 5V, AV = +2, RL = 150Ω 0.35 %
∆θ Differential Phase (NTSC) VS = 5V, AV = +2, RL = 150Ω 0.4 Deg

Output Voltage Swing Low (Note 7) No Load 12 50 mV

Output Voltage Swing High (Note 7) No Load 16 60 mV

Short-Circuit Current VS = 5V 20 45 mA

Supply Current per Amplifier 1.6 2 mA

Settling Time 0.01%, VS = 5V, V

= half supply, unless otherwise noted.

OUT

I

= 5mA 80 160 mV

SINK

= 20mA 225 450 mV

I

SINK

I

= 5mA 120 250 mV

SOURCE

= 20mA 450 850 mV

I

SOURCE

= 3V 20 40 mA

V

S

OUT

= 4V

P-P

, fC = 500kHz –75 dBc

P-P

= 2V, AV = 1, RL = 1k 250 ns

STEP

2 MHz

The ● denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C. VS = 5V, 0V;
VS = 3V, 0V; VCM = V

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

∆V
VOS TC Input Offset Voltage Drift (Note 8) ● 1.5 5 µV/°C
I

B

I

OS

A

VOL

CMRR Common Mode Rejection Ratio VS = 5V, VCM = 0V to 3.5V ● 82 101 dB

PSRR Power Supply Rejection Ratio VS = 2.5V to 10V, VCM = 0V ● 74 91 dB

V

OL

V

OH

I

SC

I

S

GBW Gain Bandwidth Product Frequency = 2MHz ● 35 75 MHz
SR Slew Rate VS = 5V, AV = –1, RL = 1k, VO = 4V

Input Offset Voltage VCM = 0V ● 125 500 µV

Input Offset Shift VCM = 0V to VS – 1.5V ● 30 275 µV

OS

Input Bias Current VCM = 1V ● 50 300 nA

Input Offset Current VCM = 1V ● 25 250 nA

Large-Signal Voltage Gain VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2 ● 30 75 V/mV

Input Common Mode Range ● 0V

Minimum Supply Voltage (Note 6) ● 2.3 2.5 V
Output Voltage Swing Low (Note 7) No Load ● 14 60 mV

Output Voltage Swing High (Note 7) No Load ● 25 80 mV

Short-Circuit Current VS = 5V ● 20 40 mA

Supply Current per Amplifier ● 2 2.75 mA

= half supply, unless otherwise noted.

OUT

= 0V (SOT-23) ● 300 1250 µV

V

CM

VCM = V

S

= VS (SOT-23) ● 0.7 3.75 mV

V

CM

= VS – 0.2V ● 550 1750 nA

V

CM

VCM = VS – 0.2V ● 25 250 nA

= 5V, VO = 1V to 4V, RL = 100Ω at VS/2 ● 3 6 V/mV

V

S

= 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2 ● 25 75 V/mV

V

S

= 3V, VCM = 0V to 1.5V ● 74 93 dB

V

S

= 5mA ● 100 200 mV

I

SINK

I

= 20mA ● 300 550 mV

SINK

= 5mA ● 150 300 mV

I

SOURCE

I

= 20mA ● 600 1000 mV

SOURCE

= 3V ● 20 30 mA

V

S

P-P

● 0.6 3.5 mV

S

● 11 22 V/µs

sn1800 1800fs

V

3

LT1800

ELECTRICAL CHARACTERISTICS

of –40°C ≤ TA ≤ 85°C. VS = 5V, 0V; VS = 3V, 0V; VCM = V

The ● denotes the specifications which apply over the temperature range

= half supply, unless otherwise noted. (Note 5)

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

∆V

OS

Input Offset Voltage VCM = 0V ● 175 700 µV

V

= 0V (SOT-23) ● 400 2000 µV

CM

VCM = V

S

V

= VS (SOT-23) ● 0.9 4 mV

CM

Input Offset Shift VCM = 0V to VS – 1.5V ● 30 300 µV

OS

● 0.75 4 mV

VOS TC Input Offset Voltage Drift (Note 8) ● 1.5 5 µV/°C
I

B

I

OS

Input Bias Current VCM = 1V ● 50 400 nA

V

= VS – 0.2V ● 600 2000 nA

CM

Input Offset Current VCM = 1V ● 25 300 nA

VCM = VS – 0.2V ● 25 300 nA

A

VOL

Large-Signal Voltage Gain VS = 5V, VO = 0.5V to 4.5V, RL = 1k at VS/2 ● 25 65 V/mV

V

= 5V, VO = 1.5V to 3.5V, RL = 100Ω at VS/2 ● 2.5 6 V/mV

S

VS = 3V, VO = 0.5V to 2.5V, RL = 1k at VS/2 ● 20 65 V/mV

CMRR Common Mode Rejection Ratio VS = 5V, VCM = 0V to 3.5V ● 81 101 dB

VS = 3V, VCM = 0V to 1.5V ● 73 93 dB

Input Common Mode Range ● 0V

S

PSRR Power Supply Rejection Ratio VS = 2.5V to 10V, VCM = 0V ● 73 90 dB

Minimum Supply Voltage (Note 6) ● 2.3 2.5 V

V

OL

V

OH

I

SC

I

S

Output Voltage Swing Low (Note 7) No Load ● 15 70 mV

I

= 5mA ● 105 210 mV

SINK

I

= 10mA ● 170 400 mV

SINK

Output Voltage Swing High (Note 7) No Load ● 25 90 mV

I

= 5mA ● 150 350 mV

SOURCE

I

= 10mA ● 300 700 mV

SOURCE

Short-Circuit Current VS = 5V ● 12.5 30 mA

V

= 3V ● 12.5 30 mA

S

Supply Current per Amplifier ● 2.1 3 mA

GBW Gain Bandwidth Product Frequency = 2MHz ● 30 70 MHz
SR Slew Rate VS = 5V, AV = –1, RL = 1k, VO = 4V ● 10 18 V/µs

V

TA = 25°C, VS = ±5V, VCM = 0V, V

= 0V, unless otherwise noted.

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

CM

CM

–

S

–

(SOT-23) 400 1000 µV

S

+

= V

S

+

(SOT-23) 1 4.5 mV

S

–

+

to V

– 1.5V 30 475 µV

S

–

+ 1V 25 350 nA

+

–

+ 1V 20 250 nA

+

= V

S

S
S

S
S

150 500 µV

0.7 3.5 mV

400 1500 nA

20 250 nA

P-P

sn1800 1800fs

V

∆V
I

I

e
i
C

B

OS

n

OS

Input Offset Voltage VCM = V

VCM = V
V
VCM = V

Input Offset Shift VCM = V

OS

Input Bias Current VCM = V

VCM = V

Input Offset Current VCM = V

V

Input Noise Voltage 0.1Hz to 10Hz 1.4 µV

n

Input Noise Voltage Density f = 10kHz 8.5 nV/√Hz
Input Noise Current Density f = 10kHz 1 pA/√Hz

IN

Input Capacitance f = 100kHz 2 pF

4

LT1800

ELECTRICAL CHARACTERISTICS

TA = 25°C, VS = ±5V, VCM = 0V, V

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

A

VOL

CMRR Common Mode Rejection Ratio VCM = V

PSRR Power Supply Rejection Ratio V
V

OL

V

OH

I

SC

I

S

GBW Gain Bandwidth Product Frequency = 2MHz 70 MHz
SR Slew Rate AV = –1, RL = 1k, VO = ±4V, Measured at VO = ±2V 23 V/µs
FPBW Full Power Bandwidth VO = 8V
HD Harmonic Distortion AV = 1, RL = 1k, VO = 2V
t

S

∆G Differential Gain (NTSC) AV = +2, RL = 150Ω 0.35 %
∆θ Differential Phase (NTSC) AV = +2, RL = 150Ω 0.2 Deg

Large-Signal Voltage Gain VO = –4V to 4V, RL = 1k 25 70 V/mV

Input Common Mode Range V

Output Voltage Swing Low (Note 7) No Load 15 60 mV

Output Voltage Swing High (Note 7) No Load 17 70 mV

Short-Circuit Current 30 50 mA
Supply Current per Amplifier 1.8 2.75 mA

Settling Time 0.01%, V

= 0V, unless otherwise noted.

OUT

V

= –2V to 2V, RL = 100Ω 2.5 7 V/mV

O

–

to 3.5V 85 109 dB

S

+

= 2.5V to 10V, V

S

I

= 5mA 85 170 mV

SINK

I

= 20mA 225 450 mV

SINK

I

= 5mA 130 260 mV

SOURCE

I

= 20mA 450 900 mV

SOURCE

P-P

= 5V, AV = 1V, RL = 1k 300 ns

STEP

–

–

= 0V 80 97 dB

S

S

+

V

S

0.9 MHz

, fC = 500kHz –75 dBc

P-P

V

The ● denotes the specifications which apply over the temperature range of 0°C ≤ TA ≤ 70°C. VS = ±5V, VCM = 0V, V

= 0V, unless

OUT

otherwise noted.

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Input Offset Voltage VCM = V

VCM = V
V
VCM = V

∆V

Input Offset Shift VCM = V

OS

VOS TC Input Offset Voltage Drift (Note 8) ● 1.5 5 µV/°C
I

B

Input Bias Current VCM = V

VCM = V

I

OS

Input Offset Current VCM = V

V

A

VOL

Large-Signal Voltage Gain VO = –4V to 4V, RL = 1k ● 20 55 V/mV

VO = –2V to 2V, RL = 100Ω ● 2 5 V/mV

CMRR Common Mode Rejection Ratio VCM = V

Input Common Mode Range ● V

PSRR Power Supply Rejection Ratio V
V

OL

Output Voltage Swing Low (Note 7) No Load ● 17 70 mV

I
I

V

OH

Output Voltage Swing High (Note 7) No Load ● 25 90 mV

I
I

–

S

–

(SOT-23) ● 450 1500 µV

S

+

= V

CM

S

+

(SOT-23) ● 15 mV

S

–

+

to V

S

S
S

S

= V

CM

S

S

+

= 2.5V to 10V, V

S

= 5mA ● 105 210 mV

SINK

= 20mA ● 250 575 mV

SINK

= 5mA ● 150 310 mV

SOURCE

= 20mA ● 600 1100 mV

SOURCE

– 1.5V ● 45 675 µV

S

–

+ 1V ● 30 400 nA

+

– 0.2V ● 450 1750 nA

–

+ 1V ● 25 300 nA

+

– 0.2V ● 25 300 nA

–

to 3.5V ● 82 105 dB

–

= 0V ● 74 91 dB

S

● 200 800 µV

● 0.75 4 mV

–

S

+

V

S

sn1800 1800fs

V

5

LT1800

ELECTRICAL CHARACTERISTICS

of 0°C ≤ TA ≤ 70°C. VS = ±5V, VCM = 0V, V

= 0V, unless otherwise noted.

OUT

The ● denotes the specifications which apply over the temperature range

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

I

SC

I

S

Short-Circuit Current ● 25 45 mA
Supply Current per Amplifier ● 2.4 3.5 mA

GBW Gain Bandwidth Product Frequency = 2MHz ● 70 MHz
SR Slew Rate AV = –1, RL = 1k, VO = ±4V, Measured at VO = ±2V ● 20 V/µs

The ● denotes the specifications which apply over the temperature range of –40°C ≤ TA ≤ 85°C. VS = ±5V, VCM = 0V, V

OUT

= 0V,

unless otherwise noted.

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Input Offset Voltage VCM = V

V
VCM = V
V

∆V

Input Offset Shift VCM = V

OS

VOS TC Input Offset Voltage Drift (Note 8) ● 1.5 5 µV/°C
I

B

Input Bias Current VCM = V

V

I

OS

Input Offset Current VCM = V

VCM = V

A

VOL

Large-Signal Voltage Gain VO = –4V to 4V, RL = 1k ● 16 55 V/mV

V

CMRR Common Mode Rejection Ratio VCM = V

Input Common Mode Range ● V

PSRR Power Supply Rejection Ratio V
V

OL

Output Voltage Swing Low (Note 7) No Load ● 15 80 mV

I
I

V

OH

Output Voltage Swing High (Note 7) No Load ● 25 100 mV

I
I

I

SC

I

S

Short-Circuit Current ● 12.5 30 mA
Supply Current per Amplifier ● 2.6 4 mA

GBW Gain Bandwidth Product Frequency = 2MHz ● 65 MHz
SR Slew Rate AV = –1, RL = 1k, VO = ±4V, Measured at VO = ±2V ● 15 V/µs

–

S

–

= V

CM

CM

CM

O

S

SINK
SINK

SOURCE
SOURCE

(SOT-23) ● 500 2250 µV

S

+

S

+

= V

(SOT-23) ● 1 5.5 mV

S

–

+

to V

– 1.5V ● 50 750 µV

S

–

+ 1V ● 50 450 nA

+

– 0.2V ● 450 2000 nA

–

+ 1V ● 25 350 nA

+

– 0.2V ● 25 350 nA

= V

S

S
S

S
S

= –1V to 1V, RL = 100Ω ● 2 5 V/mV

–

to 3.5V ● 81 104 dB

S

+

= 2.5V to 10V, V

–

= 0V ● 73 90 dB

S

= 5mA ● 105 220 mV
= 10mA ● 170 400 mV

= 5mA ● 150 350 mV
= 10mA ● 300 700 mV

● 350 900 µV

● 0.75 4.5 mV

–

S

+

V

S

V

Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The inputs are protected by back-to-back diodes and by ESD
diodes to the supply rails. If the differential input voltage exceeds 1.4V or
either input goes outside the rails, the input current should be limited to
less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefinitely.
Note 4: The LT1800C/LT1800I are guaranteed functional over the
temperature range of –40°C to 85°C.

6

Note 5: The LT1800C is guaranteed to meet specified performance from
0°C to 70°C. The LT1800C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LT1800I is guaranteed to meet
specified performance from –40°C to 85°C.
Note 6: Minimum supply voltage is guaranteed by power supply rejection
ratio test.
Note 7: Output voltage swings are measured between the output and
power supply rails.
Note 8: This parameter is not 100% tested.

sn1800 1800fs

UW

TYPICAL PERFOR A CE CHARACTERISTICS

LT1800

VOS Distribution, VCM = 0V
(SO-8, PNP Stage)

45

VS = 5V, 0V
V

= 0V

40

CM

35

30

25

20

15

PERCENT OF UNITS (%)

10

5

0

–150 –50 250

–250

INPUT OFFSET VOLTAGE (µV)

VOS Distribution, VCM = 5V
(SOT-23, NPN Stage)

35

VS = 5V, 0V

= 5V

V

CM

30

25

20

15

10

PERCENT OF UNITS (%)

5

0
–2500

–500 2500–1500 500 1500

INPUT OFFSET VOLTAGE (µV)

50 150

1800 G01

1800 G39

VOS Distribution, VCM = 5V
(SO-8, NPN Stage)

45

VS = 5V, 0V
V

= 5V

40

CM

35

30

25

20

15

PERCENT OF UNITS (%)

10

5

0

–1200 –400 2000

–2000

INPUT OFFSET VOLTAGE (µV)

400 1200

Supply Current vs Supply Voltage

4

3

2

SUPPLY CURRENT (mA)

1

0

3579102468 11

10

TOTAL SUPPLY VOLTAGE (V)

TA = 125°C

TA = 25°C

TA = –55°C

1800 G02

1800 G03

VOS Distribution, VCM = 0V
(SOT-23, PNP Stage)

40

VS = 5V, 0V

= 0V

V

CM

35

30

25

20

15

PERCENT OF UNITS (%)

10

5

0

–750 –250 250 1250

–1250

INPUT OFFSET VOLTAGE (µV)

750

1800 G38

Offset Voltage
vs Input Common Mode Voltage

500
400
300
200
100

0

–100

–200

OFFSET VOLTAGE (µV)

–300
–400
–500

12

0

TA = –55°C

TA = 25°C

TA = 125°C

1

2

INPUT COMMON MODE VOLTAGE (V)

VS = 5V, 0V
TYPICAL PART

3

4

5

1800 G04

Input Bias Current
vs Common Mode Voltage

1.0
VS = 5V, 0V

= 25°C

T

A

= 125°C

T

A

= –55°C

T

A

0

0

–1

INPUT COMMON MODE VOLTAGE (V)

1

23

INPUT BIAS CURRENT (µA)

0.8

0.6

0.4

0.2

–0.2
–0.4
–0.6
–0.8
–1.0

Input Bias Current
vs Temperature

0.8

0.7
NPN ACTIVE

0.6

V

= 5V, 0V

S

V

= 5V

0.5

0.4

0.3

INPUT BIAS (µA)

0.2

0.1

0

4

5

6

1800 G05

–0.1

CM

PNP ACTIVE

= 5V, 0V

V

S

V

= 1V

CM

–40 –20 0 20

–60

TEMPERATURE (°C)

40 60 80

1800 G06

Output Saturation Voltage
vs Load Current (Output Low)

10

VS = 5V, 0V

1

0.1
TA = 125°C

0.01
TA = –55°C

OUTPUT SATURATION VOLTAGE (V)

0.001

0.01 0.1

TA = 25°C

1 10 100

LOAD CURRENT (mA)

1800 G07

sn1800 1800fs

7

LT1800

POWER SUPPLY VOLTAGE (±V)

1.5

–70

OUTPUT SHORT-CIRCUIT CURRENT (mA)

–50

–30

–10

70

30

2

3

3.5 5

50

10

–60

–40

–20

60

20

40

0

2.5

4

4.5

TA = 125°C

TA = 125°C

TA = –55°C SINKING

VS = 5V, 0V

SOURCINGTA = –55°C

TA = 25°C

TA = 25°C

1800 G10

OUTPUT VOLTAGE (V)

–5

CHANGE IN OFFSET VOLTAGE (µV)

400

1200

2000

3

1800 G13

–400

–1200

0

800

1600

–800

–1600
–2000

–3–4

–1–2

12 4

0

5

VS = ±5V
R

L

TO GND

RL = 1k

RL = 100Ω

FREQUENCY (kHz)

20

NOISE VOLTAGE (nV/√Hz)

40

60

10

30

50

0.01 1 10 100

1800 G16

0

0.1

VS = 5V, 0V

NPN ACTIVE
V

CM

= 4.25V

PNP ACTIVE

V

CM

= 2.5V

UW

TYPICAL PERFOR A CE CHARACTERISTICS

Output Saturation Voltage
vs Load Current (Output High)

10

VS = 5V, 0V

1

0.1
TA = 125°C

0.01
TA = –55°C

OUTPUT SATURATION VOLTAGE (V)

0.001

0.01 0.1

TA = 25°C

1 10 100

LOAD CURRENT (mA)

Open-Loop Gain

2000
1600
1200

800
400

0
–400
–800

–1200

CHANGE IN OFFSET VOLTAGE (µV)

–1600

–2000

0

0.5

RL = 100Ω

1.5 2

1

OUTPUT VOLTAGE (V)

RL = 1k

1800 G08

VS = 3V, 0V

TO GND

R

L

2.5

1800 G11

Minimum Supply Voltage

0.6

0.4

0.2

0

–0.2

–0.4

CHANGE IN OFFSET VOLTAGE (mV)

–0.6

1.5 2.5

0

Open-Loop Gain Open-Loop Gain

2000
1600
1200

800
400

0
–400
–800

–1200

CHANGE IN OFFSET VOLTAGE (µV)

–1600
–2000

3

0

TA = –55°C

TA = 25°C

TA = 125°C

2

TOTAL SUPPLY VOLTAGE (V)

10.5
OUTPUT VOLTAGE (V)

3.5 5.5

3

RL = 100Ω

21.5

2.5

4.5

4

VS = 5V, 0V
R

RL = 1k

3 3.5 4.5

TO GND

L

4

Output Short-Circuit Current
vs Power Supply Voltage

5

1800 G09

5

1800 G12

Offset Voltage vs Output Current

2.0
VS = ±5V

1.5

1.0

0.5

0

–0.5

TA = 25°C

–1.0

CHANGE IN OFFSET VOLTAGE (mV)

–1.5

–2.0

–45

–60

8

TA = –55°C

TA = 125°C

–30

–15

OUTPUT CURRENT (mA)

0

15

Warm-Up Drift vs Time
(LT1800S8)

120

110

100

90

80

70

OFFSET VOLTAGE (µV)

60

50

45

1800 G14

60

30

40

VS = ±5V

VS = ±2.5V

VS = ±1.5V

20 40 80

0

TIME AFTER POWER-UP (SECONDS)

60

TYPICAL PART

100 120 140

1800 G15

Input Noise Voltage vs Frequency

sn1800 1800fs

UW

FREQUENCY (MHz)

0.01

10

OPEN-LOOP GAIN (dB)

PHASE (DEG)

20

30

40

50

0.1 1 10 100 300

1800 G22

0–40
–10
–20
–30

60

70

–20

0

20

40

60

–60
–80
–100

80

100

VS = ±2.5V
V

S

= ±5V

PHASE

GAIN

FREQUENCY (MHz)

0.1

0.001

OUTPUT IMPEDANCE (Ω)

0.1

600

100

1 10 100 500

1800 G25

0.01

1

10

VS = ±2.5V

AV = 10

AV = 1

AV = 2

TYPICAL PERFOR A CE CHARACTERISTICS

LT1800

0.1Hz to 10Hz Output Voltage

Input Current Noise vs Frequency

3.0

2.5

2.0

= 4.25V

0.1

PNP ACTIVE
V

= 2.5V

CM

FREQUENCY (kHz)

1.5

1.0

NOISE CURRENT (pA/√Hz)

NPN ACTIVE

0.5

V

CM

0

0.01 1 10 100

VS = 5V, 0V

1800 G17

Noise

2000

VS = 5V, 0V

1000

0

–1000

OUTPUT NOISE VOLTAGE (nV)

–2000

246 107135 9

0

TIME (SECONDS)

Gain Bandwidth and Phase
Margin vs Temperature Slew Rate vs Temperature

100

90
80
70
60
50

GAIN BANDWIDTH (MHz)

–35 5

–55

GBW PRODUCT

PHASE MARGIN

V

PHASE MARGIN

V

S

–15

TEMPERATURE (°C)

GBW PRODUCT

= ±2.5V

V

S

= ±5V

V

S

= ±2.5V

S

= ±5V

45 125

65

25

60
50
40
30
20

105

1800 G20

10

85

35

AV = –1

= RG = 1k

R

F

= 1k

R

L

30

PHASE MARGIN (DEG)

25

20

SLEW RATE (V/µs)

15

10

–35 5

–55

–15

25

TEMPERATURE (°C)

VS = ±2.5V

V

8

1800 G18

= ±5V

S

85

45 125

105

65

1800 G21

Gain Bandwidth and Phase
Margin vs Supply Voltage

100

90

GAIN BANDWIDTH

80

70

60 60

GAIN BANDWIDTH (MHz)

0

PRODUCT

PHASE MARGIN

246 107135 9
TOTAL SUPPLY VOLTAGE (V)

TA = 25°C

8

1800 G19

Gain and Phase vs Frequency

PHASE MARGIN (DEG)

50

40

30

20

Gain vs Frequency (AV = 1)

12

RL = 1k

= 10pF

C

L

9

= 1

A

V

6

3

0

GAIN (dB)

–3

–6

–9

–12

0.1 10 100 300

1

VS = ±5V

FREQUENCY (MHz)

VS = ±2.5V

1800 G23

Gain vs Frequency (AV = 2)

18

RL = 1k

= 10pF

C

L

15

= 2

A

V

12

9

6

GAIN (dB)

3

0

–3

–6

0.1 10 100 300

Output Impedance vs Frequency

VS = ±2.5V

VS = ±5V

1

FREQUENCY (MHz)

1800 G24

sn1800 1800fs

9

LT1800

UW

TYPICAL PERFOR A CE CHARACTERISTICS

Common Mode Rejection Ratio
vs Frequency

120

VS = 5V, 0V

100

80

60

40

20

COMMON MODE REJECTION RATIO (dB)

0

0.01 1 10 100

0.1
FREQUENCY (MHz)

Series Output Resistor
vs Capacitive Load

60

VS = 5V, 0V

55

= 2

A

V

50
45
40
35
30
25

OVERSHOOT (%)

20
15
10

5

ROS = RL = 50Ω

0

10

100 1000 10000

CAPACITIVE LOAD (pF)

ROS = 10Ω

ROS = 20Ω

1800 G26

1800 G29

Power Supply Rejection Ratio
vs Frequency

90
80
70

NEGATIVE

60

SUPPLY

50
40

30
20
10

0

POWER SUPPLY REJECTION RATIO (dB)

–10

0.01 0.1 1 10 100

0.001
FREQUENCY (MHz)

POSITIVE
SUPPLY

Distortion vs Frequency

–40

VS = 5V, 0V

= 1

A

V

–50

–60

–70

–80

DISTORTION (dBc)

–90

–100

–110

0.01

V

OUT

= 2V

P-P

RL = 150Ω, 2ND

RL = 1k, 3RD

0.1 1 10
FREQUENCY (MHz)

VS = 5V, 0V

= 25°C

T

A

1800 G27

RL = 1k, 2ND

RL = 150Ω, 3RD

1800 G30

Series Output Resistor
vs Capacitive Load

60

VS = 5V, 0V

55

= 1

A

V

50
45
40
35
30
25

OVERSHOOT (%)

20
15
10

5
0

10

ROS = 20Ω

ROS = RL = 50Ω

100 1000 10000

CAPACITIVE LOAD (pF)

Distortion vs Frequency

–40

VS = 5V, 0V

= 2

A

V

–50

–60

–70

–80

DISTORTION (dBc)

–90

–100

–110

V

0.01

= 2V

OUT

P-P

RL = 150Ω, 2ND

RL = 1k, 3RD

0.1 1 10
FREQUENCY (MHz)

ROS = 10Ω

1800 G28

RL = 1k,
2ND

RL = 150Ω,
3RD

1800 G31

Maximum Undistorted Output
Signal vs Frequency

4.6

4.5

)

P-P

4.4

4.3

4.2

4.1

OUTPUT VOLTAGE SWING (V

4.0
VS = 5V, 0V

= 1k

R

L

3.9

1k 100k 1M 10M

10k

FREQUENCY (Hz)

AV = 2

AV = –1

10

1800 G32

5V Large-Signal Response

1V/DIV

0V

= 5V, 0V 100ns/DIV 1800 G33

V

S

AV = 1
R

= 1k

L

50mV/DIV

0V

5V Small-Signal Response

= 5V, 0V 50ns/DIV 1800 G34

V

S

AV = 1
R

= 1k

L

sn1800 1800fs

UW

TYPICAL PERFOR A CE CHARACTERISTICS

LT1800

±5V Large-Signal Response

2V/DIV

0V

= ±5V 200ns/DIV 1800 G35

V

S

AV = 1
R

= 1k

L

50mV/DIV

±5V Small-Signal Response

0V

= ±5V 50ns/DIV 1800 G36

V

S

AV = 1

= 1k

R

L

WUUU

APPLICATIO S I FOR ATIO

Circuit Description

The LT1800 has an input and output signal range that
covers from the negative power supply to the positive
power supply. Figure 1 depicts a simplified schematic of
the amplifier. The input stage is comprised of two differ­ential amplifiers, a PNP stage Q1/Q2 and an NPN stage Q3/
Q4 that are active over the different ranges of common
mode input voltage. The PNP differential pair is active
between the negative supply to approximately 1.2V below

Output Overdriven Recovery

V

IN

1V/DIV

0V

V

OUT

2V/DIV

0V

V

= 5V, 0V 100ns/DIV 1800 G37

S

AV = 2

= 1k

R

L

the positive supply. As the input voltage moves closer
toward the positive supply, the transistor Q5 will steer the
tail current I1 to the current mirror Q6/Q7, activating the
NPN differential pair and the PNP pair becomes inactive
for the rest of the input common mode range up to the
positive supply. Also at the input stage, devices Q17 to
Q19 act to cancel the bias current of the PNP input pair.
When Q1-Q2 are active, the current in Q16 is controlled to
be the same as the current in Q1-Q2, thus the base current

+

V

R3 R4 R5

–

+

V

V

Q11

Q12

Q13 Q15

C2

+

I

3

C

C

–

V

BUFFER

AND

OUTPUT BIAS

Q9

Q8

C1

R2R1

OUT

Q14

1800 F01

BIAS

+

I

1

Q2

Q1

D3

D4

Q10

+

I

2

+IN

–IN

Q16

Q18Q17

–

V

ESDD2ESDD1

D6D7D8

D5

ESDD3ESDD4

–

V+V

Q19

D1

D2

Q4

Q7

Q5 V

Q3

Q6

Figure 1. LT1800 Simplified Schematic Diagram

sn1800 1800fs

11

LT1800

WUUU

APPLICATIO S I FOR ATIO

of Q16 is nominally equal to the base current of the input
devices. The base current of Q16 is then mirrored by
devices Q17-Q19 to cancel the base current of the input
devices Q1-Q2.

A pair of complementary common emitter stages Q14/Q15
that enable the output to swing from rail to rail constructs
the output stage. The capacitors C2 and C3 form the local
feedback loops that lower the output impedance at high
frequency. These devices are fabricated on Linear
Technology’s proprietary high-speed complementary bi­polar process.

Power Dissipation

The LT1800 amplifier is offered in a small package, SOT-23,
which has a thermal resistance of 250°C/W, θJA. So there
is a need to ensure that the die’s junction temperature
should not exceed 150°C. Junction temperature TJ is
calculated from the ambient temperature TA, power dissi­pation PD and thermal resistance θJA:

TJ = TA + (PD • θJA)

The power dissipation in the IC is the function of the supply
voltage, output voltage and the load resistance. For a given
supply voltage, the worst-case power dissipation P
occurs at the maximum supply current and the output
voltage is at half of either supply voltage (or the maximum
swing is less than 1/2 supply voltage). P

P

DMAX

= (VS • I

) + (VS/2)2/R

SMAX

DMAX

L

DMAX

is given by:

the NPN input stage is activated for the remaining input
range up to the positive supply rail during which the PNP
stage remains inactive. The offset voltage is typically less
than 75µV in the range that the PNP input stage is active.

Input Bias Current

The LT1800 employs a patent-pending technique to trim
the input bias current to less than 250nA for the input
common mode voltage of 0.2V above negative supply rail
to 1.2V of the positive rail. The low input offset voltage
and low input bias current of the LT1800 provide the
precision performance especially for high source imped­ance applications.

Output

The LT1800 can deliver a large output current, so the
short-circuit current limit is set around 50mA to prevent
damage to the device. Attention must be paid to keep the
junction temperature of the IC below the absolute maxi­mum rating of 150°C (refer to the Power Dissipation
section) when the output is continuously short circuited.
The output of the amplifier has reverse-biased diodes
connected to each supply. If the output is forced beyond
either supply, unlimited current will flow through these
diodes. If the current is transient and limited to several
hundred mA, and the total supply voltage is less than

12.6V, the absolute maximum rating, no damage will
occur to the device.

Example: An LT1800 in a SOT-23 package operating on
±5V supplies and driving a 50Ω load, the worst-case
power dissipation is given by:

P

The maximum ambient temperature that the part is al­lowed to operate is:

TA = TJ – (P

= 150°C – (0.165W • 250°C/W) = 108°C

Input Offset Voltage

The offset voltage will change depending upon which input
stage is active. The PNP input stage is active from the
negative supply rail to 1.2V of the positive supply rail, then

= (10 • 4mA) + (2.5)2/50 = 0.04 + 0.125 = 0.165W

DMAX

• 250°C/W)

DMAX

12

Overdrive Protection

When the input voltage exceeds the power supplies, two
pairs of crossing diodes D1 to D4 will prevent the output
from reversing polarity. If the input voltage exceeds either
power supply by 700mV, diode D1/D2 or D3/D4 will turn
on to keep the output at the proper polarity. For the phase
reversal protection to perform properly, the input current
must be limited to less than 10mA. If the amplifier is
severely overdriven, an external resistor should be used to
limit the overdrive current.

The LT1800’s input stages are also protected against a
large differential input voltage of 1.4V or higher by a pair
of back-back diodes D5/D8 to prevent the emitter-base
breakdown of the input transistors. The current in these

sn1800 1800fs

WUUU

APPLICATIO S I FOR ATIO

LT1800

diodes should be limited to less than 10mA when they are
active. The worst-case differential input voltage usually
occurs when the input is driven while the output is shorted
to ground in a unity gain configuration. In addition, the
amplifier is protected against ESD strikes up to 3kV on all
pins by a pair of protection diodes on each pin that are
connected to the power supplies as shown in Figure1.

Capacitive Load

The LT1800 is optimized for high bandwidth, low power
and precision applications. It can drive a capacitive load of
about 75pF in a unity gain configuration, and more for
higher gain. When driving a larger capacitive load, a
resistor of 10Ω to 50Ω should be connected between the
output and the capacitive load to avoid ringing or oscilla­tion. The feedback should still be taken from the output so
that the resistor will isolate the capacitive load to ensure

WUUU

APPLICATIO S I FOR ATIO

stability. Graphs on capacitive loads indicate the transient
response of the amplifier when driving capacitive load with
a specified series resistor.

Feedback Components

When feedback resistors are used to set up gain, care must
be taken to ensure that the pole formed by the feedback
resistors and the total capacitance at the inverting input
does not degrade stability. For instance, the LT1800 in a
noninverting gain of 2, set up with two 5k resistors and a
capacitance of 5pF (part plus PC board) will probably ring
in transient response. The pole is formed at 12.7MHz that
will reduce phase margin by 32 degrees when the cross­over frequency of the amplifier is around 20MHz. A capaci­tor of 5pF or higher connected across the feedback resis­tor will eliminate any ringing or oscillation.

Single Supply 1A Laser Driver Amplifier

The circuit in the front page of this data sheet shows the
LT1800 used in a 1A laser driver application. One of the
reasons the LT1800 is well suited to this control task is that
its 2.3V operation ensures that it will be awake during
power-up and operated before the circuit can otherwise
cause significant current to flow in the 2.1V threshold laser
diode. Driving the noninverting input of the LT1800 to a
voltage VIN will control the turning on of the high current
NPN transistor, FMMT619 and the laser diode. A current
equal to VIN/R1 flows through the laser diode. The LT1800
low offset voltage and low input bias current allows it to
control the current that flows through the laser diode
precisely. The overall circuit is a 1A per Volt V-to-I con­verter. Frequency compensation components R2 and C1
are selected for fast but zero-overshoot time domain
response to avoid overcurrent conditions in the laser. The
time domain response of this circuit, measured at R1 and
given a 500mV 230ns input pulse, is also shown in the
graphic on the front page. While the circuit is capable of 1A
operation, the laser diode and the transistor are thermally
limited due to power dissipation, so they must be operated
at low duty cycles.

Fast 1A Current Sense Amplifier

A simple, fast current sense amplifier in Figure 2 is suitable
for quickly responding to out-of-range currents. The cir­cuit amplifies the voltage across the 0.1Ω sense resistor
by a gain of 20, resulting in a conversion gain of 2V/A. The
– 3dB bandwidth of the circuit is 4MHz, and the uncertainty
due to VOS and IB is less than 4mA. The minimum output
voltage is 60mV, corresponding to 30mA. The large-signal
response of the circuit is shown in Figure 3.

I

L

0A TO 1A

52.3

Ω

0.1

Ω

52.3

Ω

V

= 2 • I

OUT

= 4MHz

L

f

–3dB

UNCERTAINTY DUE TO V

Figure 2. Fast 1A Current Sense

+

–

3V

LT1800

OS, IB

1800 F02

< 4mA

V

OUT

0V TO 2V

1k

sn1800 1800fs

13

LT1800

U

TYPICAL APPLICATIO S

500mV/DIV

0V

= 3V 50ns/DIV 1800 F03

V

S

Figure 3. Current Sense Amplifier Large-Signal Response

Single 3V Supply, 1MHz, 4th Order Butterworth Filter

The circuit shown in Figure 4 makes use of the low voltage
operation and the wide bandwidth of the LT1800 to create
a DC accurate 1MHz 4th order lowpass filter powered from
a 3V supply. The amplifiers are configured in the inverting
mode for the lowest distortion and the output can swing
rail-to-rail for maximum dynamic range. Figure 5 displays
the frequency response of the filter. Stopband attenuation
is greater than 100dB at 50MHz. With a 2.25V

, 250kHz

P-P

input signal, the filter has harmonic distortion products of
less than –85dBc. Worst case output offset voltage is less
than 6mV.

V

VS/2

909

909

Ω

IN

2.67k

220pF

47pF

Ω

1.1k

1.1k

2.21k

470pF

–

LT1800

+

22pF

–

+

3V

LT1800

1800 F04

V

OUT

Figure 4. 3V, 1MHz, 4th Order Butterworth Filter

0

–20

–40

–60

GAIN (dB)

–80

–100

–120

1k 100k 1M 10M 100M

10k

FREQUENCY (Hz)

1800 F05

14

Figure 5. Frequency Response of Filter

sn1800 1800fs

PACKAGE DESCRIPTIO

LT1800

U

S5 Package

5-Lead Plastic TSOT-23

(Reference LTC DWG # 05-08-1635)

0.62
MAX

3.85 MAX

0.20 BSC

DATUM ‘A’

NOTE:

1. DIMENSIONS ARE IN MILLIMETERS

2. DRAWING NOT TO SCALE

3. DIMENSIONS ARE INCLUSIVE OF PLATING

4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR

5. MOLD FLASH SHALL NOT EXCEED 0.254mm

6. JEDEC PACKAGE REFERENCE IS MO-193

2.62 REF

RECOMMENDED SOLDER PAD LAYOUT

PER IPC CALCULATOR

0.30 – 0.50 REF

0.95
REF

1.22 REF

1.4 MIN

0.09 – 0.20
(NOTE 3)

2.80 BSC

1.50 – 1.75
(NOTE 4)

1.00 MAX

PIN ONE

0.95 BSC

0.80 – 0.90

2.90 BSC
(NOTE 4)

1.90 BSC

0.30 – 0.45 TYP
5 PLCS (NOTE 3)

0.01 – 0.10

S5 TSOT-23 0302

0.010 – 0.020

(0.254 – 0.508)

0.008 – 0.010

(0.203 – 0.254)

*

DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**

DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

× 45°

0°– 8° TYP

0.016 – 0.050

(0.406 – 1.270)

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen­tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

S8 Package

8-Lead Plastic Small Outline (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1610)

0.053 – 0.069

(1.346 – 1.752)

0.014 – 0.019

(0.355 – 0.483)

TYP

0.004 – 0.010

(0.101 – 0.254)

0.050

(1.270)

BSC

0.228 – 0.244

(5.791 – 6.197)

0.189 – 0.197*
(4.801 – 5.004)

7

8

1

2

5

6

0.150 – 0.157**
(3.810 – 3.988)

SO8 1298

3

4

sn1800 1800fs

15

LT1800

TYPICAL APPLICATIO

U

Low Power High Voltage Amplifier

Certain materials used in optical applications have charac­teristics that change due to the presence and strength of
a DC electric field. The voltage applied across these
materials should be precisely controlled to maintain de­sired properties, sometimes as high as 100’s of volts. The
materials are not conductive and represent a capacitive
load.

The circuit of Figure 6 shows the LT1800 used in an
amplifier capable of a 250V output swing and providing

130V

5V

0.1µF

R2

2k

V

IN

R1

2k

C2

8pF

150V

+

R3
200k

LT1800

–

5V

C1

39pF

Q1

Q3

Figure 6. Low Power, High Voltage Amplifier

10k

10k

Q5

R4

2k

R5

2k

Q7

4.99k 1k

Q2

5V

R6
2k

R7
2k

Q4

4.99k

–130V

Q6

V

OUT

MATERIAL UNDER
ELECTRIC FIELD
100pF

AV = V

±130V SUPPLY I

Q8

OUTPUT SWING = ±128.8V
OUTPUT OFFSET

1k

OUTPUT SHORT-CIRCUIT CURRENT ≅ 3mA
10% TO 90% RISE TIME ≅ 8µs, 200V OUTPUT STEP
SMALL-SIGNAL BANDWIDTH ≅ 150kHz
Q1, Q2, Q7, Q8: ON SEMI MPSA42
Q3, Q4, Q5, Q6: ON SEMI MPSA92

1800 F06

OUT/VIN

= –100

Q

≅ 20mV

= 130µA

precise DC output voltage. When no signal is present, the
op amp output sits at about mid-supply. Transistors Q1
and Q3 create bias voltages for Q2 and Q4, which are
forced into a low quiescent current by degeneration resis­tors R4 and R5. When a transient signal arrives at VIN, the
op amp output moves and causes the current in Q2 or Q4
to change depending on the signal polarity. The current,
limited by the clipping of the LT1800 output and the 3kΩ
of total emitter degeneration, is mirrored to the output
devices to drive the capacitive load. The LT1800 output
then returns to near mid-supply, providing the precise DC
output voltage to the load. The attention to limit the current
of the output devices minimizes power dissipation thus
allowing for dense layout, and inherits better reliability.
Figure 7 shows the time domain response of the amplifier
providing a 200V output swing into a 100pF load.

V

IN

2V/DIV

V

OUT

50V/DIV

10µs/DIV 1800 F07

Figure 7. Large-Signal Time Domain
Response of the Amplifier

RELATED PARTS

PART NUMBER DESCRIPTION COMMENTS

LT1399 Triple 300MHz Current Feedback Amplifier 0.1dB Gain Flatness to 150MHz, Shutdown
LT1498/LT1499 Dual/Quad 10MHz, 6Vµs Rail-to-Rail Input and Output C-Load

Op Amps Max Supply Current 2.2mA per Amp

LT1630/LT1631 Dual/Quad 30MHz, 10V/µs Rail-to-Rail Input and Output Op Amps High DC Accuracy, 525µV V

LT1801/LT1802 80MHz, 25V/µs Low Power Rail-to-Rail Input/Output Precision Op Amps Dual/Quad Version of the LT1800
LT1806/LT1807 Single/Dual 325MHz, 140V/µs Rail-to-Rail Input and Output Op Amps High DC Accuracy, 550µV V

LT1809/LT1810 Single/Dual 180MHz Rail-to-Rail Input/Output Op Amps 350V/µs Slew Rate, Low Distortion –90dBc at 5MHz,

C-Load is a trademark of Linear Technology Corporation.

Linear Technolog y Corporation

16

1630 McCarthy Blvd., Milpitas, CA 95035-7417

[phone] ● FAX: [phone]

●

www.linear.com

TM

High DC Accuracy, 475µV V

, 4µV/°C Max Drift,

OS(MAX)

, 70mA Output Current,

OS(MAX)

Max Supply Current 4.4mA per Amplifier

, Low Noise 3.5nV/√Hz,

OS(MAX)

Low Distortion –80dB at 5MHz, Power-Down (LT1806)

Power-Down (LT1809)

sn1800 1800fs

LT/TP 0402 2K • PRINTED IN USA

 LINEAR TECHNOLOGY CORPORATION 2001