LTC1100
Precision, Chopper-Stabilized
Instrumentation Amplifier
FEATURES
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DESCRIPTIO
Offset Voltage: 10碌V Max
Offset Voltage Drift: 50nV/掳C Max
Bias Current: 50pA Max
Offset Current: 50pA Max
Gain Nonlinearity: 8ppm Max
Gain Error:
卤0.05%
Max
CMRR: 104dB
0.1Hz to 10Hz Noise: 2碌V
P-P
Single 5V Supply Operation
8-Pin MiniDIP
The LTC1100 is a high precision instrumentation ampli-
fier using chopper-stabilization techniques to achieve
outstanding DC performance. The input DC offset is
typically 1碌V while the DC offset drift is typically 10nV/掳C;
a very low bias current of 50pA is also achieved.
The LTC1100 is self-contained; that is, it achieves a differ-
ential gain of 100 without any external gain setting resistor
or trim pot. The gain linearity is 8ppm and the gain drift is
4ppm/掳C. The LTC1100 operates from a single 5V supply
up to
卤8V.
The output typically swings 300mV from its
power supply rails with a 10k load.
An optional external capacitor can be added from pin 7 to
pin 8 to tailor the device鈥檚 18kHz bandwidth and to
eliminate any unwanted noise pickup.
The LTC1100 is also offered in a 16-pin surface mount
package with selectable gains of 10 or 100.
The LTC1100 is manufactured using Linear Technology鈥檚
enhanced LTCMOS
TM
silicon gate process.
LTCMOS is a trademark of Linear Technology Corporation
APPLICATI
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Thermocouple Amplifiers
Strain Gauge Amplifiers
Differential to Single-Ended Converters
TYPICAL APPLICATI
Single 5V Supply, DC Instrumentation Amplifier
1
2
鈥揤
IN
3
4
LTC1100
8
7
6
5
0.01碌F
V
IN
V
OUT
V
+
= 5V
0.1碌F
V
OUT
= 100 [V
IN
鈥?(鈥揤
IN
)]
LTC1100 鈥?TA01
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UO
UO
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1
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4
5
6
7
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