LT1006_15 Datasheet, PDF (1/16 Pages) Linear Technology – Precision, Single Supply Op Amp

FEATURES
■ _{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 Voltage Noise, 0.1Hz to 10Hz: 0.55µVP-P}
Low Current Noise—
Better than OP-07: 0.07pA/√Hz at 10Hz
■ _{High Input Impedance: 250MΩ Min}
■ _{Minimum Supply Voltage: 2.7V Min}
U
APPLICATIO S
■ _{Low Power Sample-and-Hold Circuits}
■ _{Battery-Powered Precision Instrumentation}
Strain Gauge Signal Conditioners
Thermocouple Amplifiers
■ _{4mA to 20mA Current Loop Transmitters}
■ _{Active Filters}
LT1006
Precision, Single Supply
Op Amp
DESCRIPTIO
The LT^®1006 is the first precision single supply operational
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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
LT1006 Single Supply, Micropower Sample and Hold
9V
360k _{1/4 CD4066}
390Ω
S3
1/4 CD4066 ^360k
S4
390Ω
INPUT
0V TO 5V
7
2_–
8
A1
6
3
LT1006
+
4
SAMPLE-HOLD COMMAND
HIGH = SAMPLE
LOW = HOLD
1/2 CD4066
S1
S2
1/2 CD4066
LT1006 • TA01
0.01µF
8
2_–
A2
7
6
LT1006
3₊
4
OUTPUT
ACQUISITION TIME
HOLD SETTLING TIME
S-H OFFSET
HOLD SUPPLY CURRENT
SAMPLE SUPPLY CURRENT
1kHz SAMPLE RATE CURRENT
20µs
10µs
1mV
250µA
5.0mA
800µA
Distribution of Input Offset Voltage
20
18
V_S = 5V, 0V
T_A = 25°C
16 ^{350 LT1006s TESTED}
FROM TWO RUNS
14 _{J AND N PACKAGES}
12
10
8
6
4
2
0
–80 –40
0
40
80
INPUT OFFSET VOLTAGE (µV)
LT1006 • G01
1006fa
1