Datasheet Texas Instruments PGA308AIDGSR — Ficha de datos

PG A308 PGA308 PGA3
08 www.ti.com SBOS440B – JULY 2008 – REVISED DECEMBER 2010 Single-Supply, Auto-Zero Sensor Amplifier
with Programmable Gain and Offset
Check for Samples: PGA308 FEATURES DESCRIPTION The PGA308 is a programmable analog sensor signal
conditioner. The analog signal path amplifies the
sensor signal and provides digital calibration for offset
and gain. Calibration is done via the 1W pin, a digital
One-Wire,
UART-compatible
interface.
For
three-terminal sensor modules, 1W may be
connected to VOUT and the assembly programmed
through the VOUT pin. Gain and offset calibration
parameters are stored onboard in seven banks of
one-time programmable (OTP) memory. The
power-on reset (POR) OTP bank may be
programmed a total of four times. 1 2 Digital Calibration for Bridge Sensors
Offset Select: Coarse and Fine
Gain Select: Coarse and Fine
Bridge Fault Monitor
Input Mux for Lead Swap
Over/Under Scale Limits …