0
ACTIVE
Number of channels |
1 |
Vs (max) (V) |
5.5 |
Vs (min) (V) |
1.8 |
Input offset (±) (max) (µV) |
25 |
Voltage gain (min) (V/V) |
1 |
Voltage gain (max) (V/V) |
1000 |
Noise at 1 kHz (typ) (nV√Hz) |
50 |
Features |
Low power, Zero Drift |
CMRR (min) (dB) |
96 |
Input offset drift (±) (max) (µV/°C) |
0.1 |
Input bias current (±) (max) (nA) |
0.28 |
Iq (typ) (mA) |
0.05 |
Bandwidth at min gain (typ) (MHz) |
0.15 |
Gain error (±) (max) (%) |
0.25 |
Operating temperature range (°C) |
-40 to 125 |
TI functional safety category |
Functional Safety-Capable |
Rating |
Automotive |
Type |
Resistor |
Gain nonlinearity (±) (max) (%) |
0.001 |
Output swing headroom (to negative supply) (typ) (V) |
0.05 |
Output swing headroom (to positive supply) (typ) (V) |
-0.05 |
Input common mode headroom (to negative supply) (typ) (V) |
0.1 |
Input common mode headroom (to positive supply) (typ) (V) |
-0.1 |
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) |
1 |
VSSOP (DGK)-8-14.7 mm² 3 x 4.9
The INA333-Q1 is a low-power, precision instrumentation amplifier offering excellent accuracy. The three-op-amp design, small size, and low power make this device an excellent choice for automotive applications that require precise measurements, such as current leakage detection. This INA333-Q1 is also a great choice for applications that use resistive bridge sensors.
A single external resistor sets any gain from 1 to 1000. The INA333-Q1 is designed to use an industry-standard gain equation: G = 1 + (100 kΩ / R G).
The INA333-Q1 provides very low offset voltage (25 µV, G ≥ 100), excellent offset voltage drift (0.1 µV/°C, G ≥ 100), and high common-mode rejection (96 dB at G ≥ 10). The device operates with power supplies as low as 1.8 V (±0.9 V), and quiescent current is only 50 µA. Auto-calibration techniques maintain excellent precision over the automotive temperature range. The INA333-Q1 provides a very low peak-to-peak noise of 1 µV.
The INA333-Q1 device is available in an 8-pin VSSOP package and is specified over the T A = –40°C to +125°C temperature range.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
