LTC1100_03 Datasheet, PDF (1/8 Pages) Linear Technology – Precision, Zero-Drift Instrumentation Amplifier

LTC1100
Precision, Zero-Drift
Instrumentation Amplifier
FEATURES
■ _{Offset Voltage: 10µV Max}
■ _{Offset Voltage Drift: 100nV/°C Max}
■ _{Bias Current: 65pA Max}
■ _{Offset Current: 65pA Max}
■ _{Gain Nonlinearity: 20ppm Max}
■ _{Gain Error: ±0.075% Max}
■ _{CMRR: 90dB}
■ _{0.1Hz to 10Hz Noise: 1.9µVP-P}
■ _{Single 5V Supply Operation}
■ _{8-Pin MiniDIP}
U
APPLICATIO S
■ _{Thermocouple Amplifiers}
■ _{Strain Gauge Amplifiers}
■ _{Differential to Single-Ended Converters}
TYPICAL APPLICATIO
DESCRIPTIO
The LTC^®1100 is a high precision instrumentation amplifier
using zero-drift techniques to achieve outstanding DC
performance. The input DC offset is typically 1µV while
the DC offset drift is typically 5nV/°C; a very low bias
current of 65pA 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 20ppm and the gain drift is
4ppm/°C. The LTC1100 operates from a single 5V supply
up to ±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’s 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’s
enhanced LTCMOS^TM silicon gate process.
, LTC and LT are registered trademarks of Linear Technology Corporation.
LTCMOS is a trademark of Linear Technology Corporation
Single 5V Supply, DC Instrumentation Amplifier
1
8
V_OUT
2
7
0.01µF
3
–V_IN
LTC1100
6
V_IN
4
5
V⁺ = 5V
V_OUT = 100 [V_IN – (–V_IN)]
0.1µF
LTC1100 • TA01
1100fc
1