0
ACTIVE
Number of channels |
1 |
Vs (max) (V) |
36 |
Vs (min) (V) |
4.5 |
Input offset (±) (max) (µV) |
500 |
Voltage gain (min) (V/V) |
1 |
Voltage gain (max) (V/V) |
10000 |
Noise at 1 kHz (typ) (nV√Hz) |
20 |
Features |
Overvoltage protection |
CMRR (min) (dB) |
106 |
Input offset drift (±) (max) (µV/°C) |
5 |
Input bias current (±) (max) (nA) |
0.05 |
Iq (typ) (mA) |
0.45 |
Bandwidth at min gain (typ) (MHz) |
0.6 |
Gain error (±) (max) (%) |
0.5 |
Operating temperature range (°C) |
-40 to 85 |
Rating |
Catalog |
Type |
Resistor |
Gain nonlinearity (±) (max) (%) |
0.005 |
Output swing headroom (to negative supply) (typ) (V) |
0.15 |
Output swing headroom (to positive supply) (typ) (V) |
-0.9 |
Input common mode headroom (to negative supply) (typ) (V) |
2 |
Input common mode headroom (to positive supply) (typ) (V) |
-2 |
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) |
1 |
PDIP (P)-8-92.5083 mm² 9.81 x 9.43
The INA121 is a FET-input, low power instrumentation amplifier offering excellent accuracy. Its versatile three-op amp design and very small size make it ideal for a variety of general purpose applications. Low bias current (±4pA) allows use with high impedance sources.
Gain can be set from 1V to 10,000V/V with a single external resistor. Internal input protection can withstand up to ±40V without damage.
The INA121 is laser-trimmed for very low offset voltage (±200µV), low offset drift (±2µV/°C), and high common-mode rejection (106dB at G = 100). It operates on power supplies as low as ±2.25V (+4.5V), allowing use in battery operated and single 5V systems. Quiescent current is only 450µA.
Package options include 8-pin plastic DIP and SO-8 surface mount. All are specified for the -40°C to +85°C industrial temperature range.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
