LINEAR TECHNOLOGY LT1800 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