LTC1100 Datasheet, PDF (1/8 Pages) Linear Technology – Precision, Chopper-Stabilized Instrumentation Amplifier

LTC1100
Precision, Chopper-Stabilized
Instrumentation Amplifier
FEATURES
s _{Offset Voltage: 10µV Max}
s _{Offset Voltage Drift: 50nV/°C Max}
s _{Bias Current: 50pA Max}
s _{Offset Current: 50pA Max}
s _{Gain Nonlinearity: 8ppm Max}
s _{Gain Error: ±0.05% Max}
s _{CMRR: 104dB}
s _{0.1Hz to 10Hz Noise: 2µVP-P}
s _{Single 5V Supply Operation}
s _{8-Pin MiniDIP}
APPLICATI S
s _{Thermocouple Amplifiers}
s _{Strain Gauge Amplifiers}
s _{Differential to Single-Ended Converters}
DESCRIPTIO
The LTC1100 is a high precision instrumentation ampli-
fier using chopper-stabilization techniques to achieve
outstanding DC performance. The input DC offset is
typically 1µV while the DC offset drift is typically 10nV/°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/°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.
LTCMOS is a trademark of Linear Technology Corporation
TYPICAL APPLICATI
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
1