0
ACTIVE
Common-mode voltage (max) (V) |
80 |
Common-mode voltage (min) (V) |
-4 |
Input offset (±) (max) (µV) |
62.5, 62500 |
Gain error (%) |
0.5 |
Gain error drift (±) (max) (ppm/°C) |
45 |
CMRR (min) (dB) |
120 |
Bandwidth (kHz) |
350 |
Supply voltage (max) (V) |
5.5 |
Supply voltage (min) (V) |
2.7 |
Iq (max) (mA) |
2.4 |
Features |
Bidirectional, Enhanced PWM Rejection, Integrated Shunt, Low-side Capable |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 125 |
HTSSOP (PWA)-24-62.08 mm² 9.7 x 6.4
The INA254 is a voltage-output, current sense amplifier with a 400-µΩ integrated shunt resistor. The INA254 is designed to monitor bidirectional currents over a wide common-mode range from –4 V to +80 V, independent of the supply voltage. Three fixed gains are available: 20 mV/A, 40 mV/A, and 75 mV/A. The integration of the precision resistor with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy, ultra-low temperature drift performance of ±45 ppm/°C (maximum), and an optimized Kelvin layout for the sensing resistor.
The INA254 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve control applications.
This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. All gain versions are specified over the extended operating temperature range (–40°C to +125°C), and are available in a 24-pin HTSSOP package.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
