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LT1212

14MHz, 7V/µs, Single Supply Dual and Quad Precision Op Amps

Linear Technology 

LT1211/LT1212

14MHz, 7V/µs, Single Supply

Dual and Quad

Precision Op Amps

FEATURES

s Slew Rate: 7V/µs Typ

s Gain-Bandwidth Product: 14MHz Typ

s Fast Settling to 0.01%

2V Step to 200µV: 900ns Typ

10V Step to 1mV: 2.2µs Typ

s Excellent DC Precision in All Packages

Input Offset Voltage: 275µV Max

Input Offset Voltage Drift: 6µV/°C Max

Input Offset Current: 30nA Max

Input Bias Current: 125nA Max

Open-Loop Gain: 1200V/mV Min

s Single Supply Operation

Input Voltage Range Includes Ground

Output Swings to Ground While Sinking Current

s Low Input Noise Voltage: 12nV/√Hz Typ

s Low Input Noise Current: 0.2pA/√Hz Typ

s Specified on 3.3V, 5V and ±15V

s Large Output Drive Current: 20mA Min

s Low Supply Current per Amplifier: 1.8mA Max

s Dual in 8-Pin DIP and SO-8

s Quad in 14-Pin DIP and Narrow SO-16

Note: For applications requiring higher slew rate, see the LT1213/LT1214 and

LT1215/LT1216 data sheets.

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

DESCRIPTIO

The LT®1211 is a dual, single supply precision op amp with

a 14MHz gain-bandwidth product and a 7V/µs slew rate.

The LT1212 is a quad version of the same amplifier. The

DC precision of the LT1211/LT1212 eliminates trims in

most systems while providing high frequency perfor-

mance not usually found in single supply amplifiers.

The LT1211/LT1212 will operate on any supply greater

than 2.5V and less than 36V total. These amplifiers are

specified on single 3.3V, single 5V and ±15V supplies, and

only require 1.3mA of quiescent supply current per ampli-

fier. The inputs can be driven beyond the supplies without

damage or phase reversal of the output. The minimum

output drive is 20mA, ideal for driving low impedance

loads.

APPLICATI S

s 2.5V Full-Scale 12-Bit Systems: VOS ≤ 0.45LSB

s 10V Full-Scale 16-Bit Systems: VOS ≤ 1.8LSB

s Active Filters

s Photo Diode Amplifiers

s DAC Current-to-Voltage Amplifiers

s Battery-Powered Systems

TYPICAL APPLICATI

Input Bias Current Cancellation

RG

VIN

RF

V+

–

1/2

LT1211

+

SIGNAL AMP

VOUT

1M

22pF

1M

+

1/2

LT1211

–

CANCELLATION

AMP

1211/12 TA01

Input Current vs Input Voltage

100

90

VS = 5V, VOUT IN

LINEAR REGION

80

WITHOUT CANCELLATION

70

RIN = 300M

60

50

40

WITH CANCELLATION

30

20

RIN = 2.4G

10

0

0.01

0.1

1

INPUT VOLTAGE (V)

10

1211/12 TA02

1

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