Linear Technology LT1499, LT1498 Datasheet

FEATURES

■

Rail-to-Rail Input and Output

■

475µV Max V

■

Gain-Bandwidth Product: 10MHz

■

Slew Rate: 6V/µs

■

Low Supply Current per Amplifier: 1.7mA

■

Input Offset Current: 50nA Max

■

Input Bias Current: 500nA Max

■

Open-Loop Gain: 1000V/mV Min

■

Low Input Noise Voltage: 12nV/√Hz Typ

■

Wide Supply Range: 2.2V to ±15V

■

Large Output Drive Current: 30mA

■

Stable for Capacitive Loads Up to 10,000pF

■

Dual in 8-Pin PDIP and SO Package

■

Quad in Narrow 14-Pin SO

from V+ to V

OS

–

U

APPLICATIONS

■

Driving A-to-D Converters

■

Active Filters

■

Rail-to-Rail Buffer Amplifiers

■

Low Voltage Signal Processing

■

Battery-Powered Systems

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

C-Load is a trademark of Linear Technology Corporation.

LT1498/LT1499

10MHz, 6V/µs, Dual/Quad

Rail-to-Rail Input and Output

Precision C-Load Op Amps

U

DESCRIPTION

The LT®1498/LT1499 are dual/quad, rail-to-rail input and
output precision C-LoadTM op amps with a 10MHz gain­bandwidth product and a 6V/µ s slew rate.

The LT1498/LT1499 are designed to maximize input
dynamic range by delivering precision performance over
the full supply voltage. Using a patented technique, both
input stages of the LT1498/LT1499 are trimmed, one at the
negative supply and the other at the positive supply. The
resulting guaranteed common mode rejection is much
better than other rail-to-rail input op amps. When used as a
unity-gain buffer in front of single supply 12-bit A-to-D
converters, the LT1498/LT1499 are guaranteed to add less
than 1LSB of error even in single 3V supply systems.

With 110dB of supply rejection, the LT1498/LT1499 main­tain their performance over a supply range of 2.2V to 36V
and are specified for 3V, 5V and ±15V supplies. The inputs
can be driven beyond the supplies without damage or
phase reversal of the output. These op amps remain stable
while driving capacitive loads up to 10,000pF.

The LT1498 is available with the standard dual op amp
configuration in 8-pin PDIP and SO packaging. The LT1499
features the standard quad op amp configuration and is
available in a 14-pin plastic SO package. These devices can
be used as plug-in replacements for many standard op
amps to improve input/output range and precision.

TYPICAL APPLICATION

Single Supply 100kHz 4th Order Butterworth Filter

V

V+/2

6.81k

11.3k

6.81k

IN

330pF

100pF

–

1/2 LT1498

+

U

5.23k

5.23k 47pF

10.2k

1000pF

V

–

1/2 LT1498

+

Frequency Response

10

0
–10
–20
–30
–40

+

V

OUT

1498 TA01

–50
–60

GAIN (dB)

–70
–80
–90

–100
–110

100

1k

FREQUENCY (Hz)

10k

100k

VIN = 2.7V
V+ = 3V

1M

P-P

10M

1498 TA02

1

LT1498/LT1499

WW

W

U

ABSOLUTE MAXIMUM RATINGS

Total Supply Voltage (V+ to V–) ............................. 36V

Input Current ..................................................... ±10mA

Output Short-Circuit Duration (Note 1)........ Continuous

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

U

W

U

PACKAGE/ORDER INFORMATION

TOP VIEW

OUT A

1

–IN A

2

+IN A

N8 PACKAGE
8-LEAD PDIP

A

3

–

V

4

= 150°C, θJA = 130°C/ W (N8)

T

JMAX

T

= 150°C, θJA = 190°C/ W (S8)

JMAX

V+

8

OUT B

7

–IN B

6

B

+IN B

5



S8 PACKAGE

8-LEAD PLASTIC SO

ORDER PART

NUMBER

LT1498CN8
LT1498CS8

S8 PART MARKING

1498

Specified Temperature Range (Note 3) .... – 40°C to 85°C

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

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

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

1

OUTA

2

–IN A

3

+IN A

+

4

V



5

+IN B

6

–IN B

7

OUT B


14-LEAD PLASTIC SO

T

= 150°C, θJA = 150°C/W

JMAX

TOP VIEW

A

B

S PACKAGE

14

OUT D

13

–IN D

D

12

+IN D

–

11

V



10

+IN C

C

9

–IN C

8

OUT C



ORDER PART

NUMBER

LT1499CS

Consult factory for Military and Industrial grade parts.

ELECTRICAL CHARACTERISTICS

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

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

∆V

I

B

∆I

B

I

OS

∆IOSInput Offset Current Shift VCM = V– to V

e

n

i

n

C

IN

A

VOL

Input Offset Voltage VCM = V

Input Offset Voltage Shift VCM = V– to V

OS

Input Offset Voltage Match (Channel-to-Channel) VCM = V+, V
Input Bias Current VCM = V

Input Bias Current Shift VCM = V– to V
Input Bias Current Match (Channel-to-Channel) VCM = V+ (Note 4) 0 10 100 nA

Input Offset Current VCM = V

Input Noise Voltage 0.1Hz to 10Hz 400 nV
Input Noise Voltage Density f = 1kHz 12 nV/√Hz
Input Noise Current Density f = 1kHz 0.3 pA/√Hz
Input Capacitance 5pF
Large-Signal Voltage Gain VS = 5V, VO = 75mV to 4.8V, RL = 10k 600 3800 V/mV

= half supply, unless otherwise noted.

OUT

+
–

= V

V

CM

= V

V

CM

= V– (Note 4) – 100 –10 0 nA

V

CM

= V

V

CM

= 3V, VO = 75mV to 2.8V, RL = 10k 500 2000 V/mV

V

S

+

–

(Note 4) 200 750 µV

+
–

+

+
–

+

150 475 µV
150 475 µV

150 425 µV

0 250 500 nA

–500 –250 0 nA

500 1000 nA

550 nA
550 nA

10 100 nA

P-P

2

LT1498/LT1499

ELECTRICAL CHARACTERISTICS

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

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

CMRR Common Mode Rejection Ratio VS = 5V, VCM = V– to V

CMRR Match (Channel-to-Channel) (Note 4) VS = 5V, VCM = V– to V

PSRR Power Supply Rejection Ratio VS = 2.2V to 12V, VCM = VO = 0.5V 88 105 dB

PSRR Match (Channel-to-Channel) (Note 4) VS = 2.2V to 12V, VCM = VO = 0.5V 82 103 dB

V

OL

V

OH

I

SC

I

S

GBW Gain-Bandwidth Product (Note 6) 6.8 10.5 MHz
SR Slew Rate (Note 7) VS = 5V, AV = –1, RL = Open, VO = 4V 2.6 4.5 V/µs

Output Voltage Swing (Low) (Note 5) No Load 14 30 mV

Output Voltage Swing (High) (Note 5) No Load 2.5 10 mV

Short-Circuit Current VS = 5V ±12.5 ±24 mA

Supply Current per Amplifier 1.7 2.2 mA

= half supply, unless otherwise noted.

OUT

+

= 3V, VCM = V– to V

V

S

= 3V, VCM = V– to V

V

S

= 0.5mA 35 70 mV

I

SINK

= 2.5mA 90 200 mV

I

SINK

I

= 0.5mA 50 100 mV

SOURCE

= 2.5mA 140 250 mV

I

SOURCE

= 3V ±12.0 ±19 mA

V

S

= 3V, AV = –1, RL = Open 2.3 4.0 V/µs

V

S

+

+
+

81 90 dB
76 86 dB

75 91 dB
70 86 dB

0°C < TA < 70°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

= half supply, unless otherwise noted.

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

= V

V

CM

VCM = V

+
–

+ 0.1V ● 175 650 µV

+

+

–

+ 0.1V, V+ (Note 4) ● 200 900 µV

+

● 175 650 µV

● 1.5 4.0 µV/°C

● 170 600 µV

● 0 275 600 nA

V

OS

Input Offset Voltage VCM = V

VOS TC Input Offset Voltage Drift (Note 2) ● 0.5 2.5 µV/°C

∆V

OS

Input Offset Voltage Shift VCM = V– + 0.1V to V
Input Offset Voltage Match (Channel-to-Channel) VCM = V

I

B

Input Bias Current VCM = V

VCM = V– + 0.1V ● –600 –275 0 nA

∆I

B

Input Bias Current Shift VCM = V
Input Bias Current Match (Channel-to-Channel) VCM = V+ (Note 4) ● 0 15 170 nA

I

OS

∆I

OS

A

VOL

Input Offset Current VCM = V

Input Offset Current Shift VCM = V
Large-Signal Voltage Gain VS = 5V, VO = 75mV to 4.8V, RL = 10k ● 500 2500 V/mV

–

+ 0.1V to V

–

VCM = V

V

V

+ 0.1V (Note 4) ● –170 – 15 0 nA

+
–

= V

+ 0.1V ● 10 85 nA

CM

–

+ 0.1V to V

= 3V, VO = 75mV to 2.8V, RL = 10k ● 400 2000 V/mV

S

CMRR Common Mode Rejection Ratio VS = 5V, VCM = V– + 0.1V to V

= 3V, VCM = V– + 0.1V to V

V

S

CMRR Match (Channel-to-Channel) (Note 4) VS = 5V, VCM = V

= 3V, VCM = V

V

S

+

+

–

+ 0.1V to V

–

+ 0.1V to V

● 550 1200 nA

● 10 85 nA

● 20 170 nA

+
+

+
+

● 78 89 dB

● 73 85 dB

● 74 90 dB

● 69 86 dB

PSRR Power Supply Rejection Ratio VS = 2.3V to 12V, VCM = VO = 0.5V ● 86 102 dB

PSRR Match (Channel-to-Channel) (Note 4) VS = 2.3V to 12V, VCM = VO = 0.5V ● 80 102 dB

3

LT1498/LT1499

ELECTRICAL CHARACTERISTICS

0°C < TA < 70°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

= half supply, unless otherwise noted.

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OL

V

OH

I

SC

I

S

Output Voltage Swing (Low) (Note 5) No Load ● 17 35 mV

= 0.5mA ● 40 80 mV

I

SINK

= 2.5mA ● 110 220 mV

I

SINK

Output Voltage Swing (High) (Note 5) No Load ● 3.5 15 mV

= 0.5mA ● 55 120 mV

I

SOURCE

= 2.5mA ● 160 300 mV

I

SOURCE

Short-Circuit Current VS = 5V ● ±12 ±23 mA

= 3V ● ±10 ±20 mA

V

S

Supply Current per Amplifier ● 1.9 2.6 mA

GBW Gain-Bandwidth Product (Note 6) ● 6.1 9 MHz
SR Slew Rate (Note 7) VS = 5V, AV = –1, RL = Open, VO = 4V ● 2.5 4.0 V/µs

= 3V, AV = –1, RL = Open ● 2.2 3.5 V/µs

V

S

–40°C < TA < 85°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

= half supply, unless otherwise noted. (Note 3)

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Input Offset Voltage VCM = V

VOS TC Input Offset Voltage Drift (Note 2) ● 0.5 2.5 µV/°C

∆V

Input Offset Voltage Shift VCM = V– + 0.1V to V

OS

Input Offset Voltage Match (Channel-to-Channel) VCM = V

I

B

∆I

B

Input Bias Current VCM = V

Input Bias Current Shift VCM = V
Input Bias Current Match (Channel-to-Channel) VCM = V

I

OS

∆I

OS

A

VOL

Input Offset Current VCM = V

Input Offset Current Shift VCM = V– + 0.1V to V
Large-Signal Voltage Gain VS = 5V, VO = 75mV to 4.8V, RL = 10k ● 400 2500 V/mV

CMRR Common Mode Rejection Ratio VS = 5V, VCM = V– + 0.1V to V

CMRR Match (Channel-to-Channel) (Note 4) VS = 5V, VCM = V

+
–

= V

V

VCM = V

VCM = V

V

V

V

V

V

+ 0.1V ● 250 750 µV

CM

+

+

–

+ 0.1V, V

+
–

+ 0.1V ● –750 –350 0 nA

–

+ 0.1V to V

+

(Note 4) ● 0 30 180 nA

–

= V

CM

+
–

= V

CM

= 3V, VO = 75mV to 2.8V, RL = 10k ● 300 2000 V/mV

S

= 3V, VCM = V– + 0.1V to V

S

= 3V, VCM = V– + 0.1V to V

S

+

(Note 4) ● 300 1500 µV

+

+ 0.1V (Note 4) ● – 180 – 30 0 nA

+ 0.1V ● 15 90 nA

+

+
+

–

+ 0.1V to V

+

+

● 250 750 µV

● 1.5 4.0 µV/°C

● 250 650 µV

● 0 350 750 nA

● 700 1500 nA

● 15 90 nA

● 30 180 nA

● 77 86 dB

● 73 81 dB

● 72 86 dB

● 69 83 dB

PSRR Power Supply Rejection Ratio VS = 2.5V to 12V, VCM = VO = 0.5V ● 86 100 dB

PSRR Match (Channel-to-Channel) (Note 4) VS = 2.5V to 12V, VCM = VO = 0.5V ● 80 100 dB

V

OL

V

OH

Output Voltage Swing (Low) (Note 5) No Load ● 18 40 mV

= 0.5mA ● 45 80 mV

I

SINK

= 2.5mA ● 110 220 mV

I

SINK

Output Voltage Swing (High) (Note 5) No Load ● 3.5 15 mV

= 0.5mA ● 60 120 mV

I

SOURCE

I

= 2.5mA ● 170 300 mV

SOURCE

4

ELECTRICAL CHARACTERISTICS

LT1498/LT1499

–40°C < TA < 85°C, VS = 5V, 0V; VS = 3V, 0V; VCM = V

= half supply, unless otherwise noted. (Note 3)

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

I

SC

I

S

Short-Circuit Current VS = 5V ● ±7.5 ±15 mA

= 3V ● ±7.5 ±15 mA

V

S

Supply Current per Amplifier ● 2.0 2.7 mA

GBW Gain-Bandwidth Product (Note 6) ● 5.8 8.5 MHz
SR Slew Rate (Note 7) VS = 5V, AV = –1, RL = Open, VO = 4V ● 2.2 3.6 V/µs

= 3V, AV = –1, RL = Open ● 1.9 3.2 V/µs

V

S

TA = 25°C, VS = ±15V, VCM = 0V, V

= 0V, unless otherwise noted.

OUT

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

∆V

OS

Input Offset Voltage VCM = V

Input Offset Voltage Shift VCM = V– to V

OS

Input Offset Voltage Match (Channel-to-Channel) VCM = V+, V

I

B

∆I

B

Input Bias Current VCM = V

Input Bias Current Shift VCM = V– to V
Input Bias Current Match (Channel-to-Channel) VCM = V

I

OS

Input Offset Current VCM = V

∆IOSInput Offset Current Shift VCM = V– to V

Input Noise Voltage 0.1Hz to 10Hz 400 nV

e

n

i

n

A

VOL

Input Noise Voltage Density f = 1kHz 12 nV/√Hz
Input Noise Current Density f = 1kHz 0.3 pA/√Hz
Large-Signal Voltage Gain VO = –14.5V to 14.5V, RL = 10k 1000 5200 V/mV

+
–

= V

V

CM

= V

V

CM

= V– (Note 4) –120 –12 0 nA

V

CM

= V

V

CM

= –10V to 10V, RL = 2k 500 2300 V/mV

V

O

+

–

(Note 4) 250 1400 µV

+
–

+

+

(Note 4) 0 12 120 nA

+
–

+

0 250 550 nA

–550 –250 0 nA

200 800 µV
200 800 µV

150 650 µV

500 1100 nA

660 nA
660 nA

12 120 nA

P-P

Channel Separation VO = –10V to 10V, RL = 2k 116 130 dB

CMRR Common-Mode Rejection Ratio VCM = V– to V

CMRR Match (Channel-to-Channel) (Note 4) VCM = V– to V

+

+

93 106 dB
87 103 dB

PSRR Power Supply Rejection Ratio VS = ±5V to ±15V 89 110 dB

PSRR Match (Channel-to-Channel) (Note 4) VS = ±5V to ±15V 83 105 dB

V

OL

V

OH

I

SC

I

S

Output Voltage Swing (Low) (Note 5) No Load 18 30 mV

= 0.5mA 40 80 mV

I

SINK

I

= 10mA 230 500 mV

SINK

Output Voltage Swing (High) (Note 5) No Load 2.5 10 mV

I

= 0.5mA 55 120 mV

SINK

= 10mA 420 800 mV

I

SINK

Short-Circuit Current ±15 ±30 mA

Supply Current per Amplifier 1.8 2.5 mA
GBW Gain-Bandwidth Product (Note 6) 6.8 10.5 MHz
SR Slew Rate AV = –1, RL = Open, VO = ±10V 3.5 6 V/µs

Measure at V

= ±5V

O

5