1

LT1006

1006fa

The LT

amplifier. Its design has been optimized for single supply

operation with a full set of specifications at 5V.

Specifications at ±15V are also provided.

The LT1006 has a low offset voltage of 20µV, drift of

0.2µV/°C, offset current of 120pA, gain of 2.5 million,

common mode rejection of 114dB and power supply

rejection of 126dB.

Although supply current is only 340µA, a novel output

stage can source or sink in excess of 20mA while retaining

high voltage gain. Common mode input range includes

ground to accommodate low ground-referenced inputs

from strain gauges or thermocouples, and output can

swing to within a few millivolts of ground. If a higher

slew rate (in excess of 1V/µs) or micropower operation

(supply current down to 90µA) is required, the operating

currents can be modified by connecting an external

optional resistor to Pin 8.

For similar single supply precision dual and quad op amps,

please see the LT1013/LT1014 data sheet. For micropower

dual and quad op amps, please see the LT1078/LT1079

data sheet.

LT1006 Single Supply, Micropower Sample and Hold

Precision, Single Supply

Op Amp

FEATURES

APPLICATIO S

DESCRIPTIO

■

Low Power Sample-and-Hold Circuits

■

Battery-Powered Precision Instrumentation

Strain Gauge Signal Conditioners

Thermocouple Amplifiers

■

4mA to 20mA Current Loop Transmitters

■

Active Filters

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

TYPICAL APPLICATIO

390Ω

390Ω

S3

S4

S1

9V

3

2

8

7

6

OUTPUT

4

S2

0.01µF

6

8

7

2

3

4

INPUT

0V TO 5V

SAMPLE-HOLD COMMAND

HIGH = SAMPLE

LOW = HOLD

ACQUISITION TIME

20µs

HOLD SETTLING TIME

10µs

S-H OFFSET

1mV

HOLD SUPPLY CURRENT

250µA

SAMPLE SUPPLY CURRENT

5.0mA

1kHz SAMPLE RATE CURRENT

800µA

360k

360k

1/4 CD4066

1/2 CD4066

1/2 CD4066

1/4 CD4066

LT1006 • TA01

+

–

A1

LT1006

+

–

A2

LT1006

Distribution of Input Offset Voltage

INPUT OFFSET VOLTAGE (µV)

12

10

16

14

20

18

LT1006 • G01

8

6

4

2

0

–80

–40

40

80

0

350 LT1006s TESTED

FROM TWO RUNS

J AND N PACKAGES

■

Single Supply Operation

Input Voltage Range Extends to Ground

Output Swings to Ground while Sinking Current

■

Guaranteed Offset Voltage: 50µV Max

■

Guaranteed Low Drift: 1.3µV/°C Max

■

Guaranteed Offset Current: 0.5nA Max

■

Guaranteed High Gain

5mA Load Current: 1.5 Million Min

17mA Load Current: 0.8 Million Min

■

Guaranteed Low Supply Current: 520µA Max

■

Supply Current can be Reduced by a Factor of 4

■

Low Current Noise—

Better than OP-07: 0.07pA/√Hz at 10Hz

■

High Input Impedance: 250MΩ Min

■

Minimum Supply Voltage: 2.7V Min