PGA308 - 具有可编程增益和偏差的单电源自动置零传感器放大器

PGA308是TI德州仪器公司的一款温度&压力信号调节产品，PGA308是具有可编程增益和偏差的单电源自动置零传感器放大器，本站介绍了PGA308的封装应用图解、特点和优点、功能等，并给出了与PGA308相关的TI元器件型号供参考。

PGA308 - 具有可编程增益和偏差的单电源自动置零传感器放大器 - 温度&压力信号调节 - 压力感应 - 德州仪器

产品描述

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.

The all-analog signal path contains a 2×2 input multiplexer (mux) to allow electronic sensor lead swapping, a coarse offset adjust, an auto-zero programmable gain instrumentation amplifier (PGA), a fine gain adjust, a fine offset adjust, and a programmable gain output amplifier. Fault monitor circuitry detects and signals sensor burnout, overload, and system fault conditions. Over/under-scale limits provide additional means for system level diagnostics. The dual-use DOUT/VCLAMP pin can be used as a programmable digital output or as a VOUT over-voltage clamp.

For detailed application information, see the PGA308 User's Guide (SBOU069) available for download at www.ti.com.

产品特性

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
DOUT/VOUT Clamp Function
Seven Banks OTP Memory
One-Wire Digital UART Interface
Operating Voltage: +2.7V to +5.5V
Temperature Range: –40°C to +125°C
MSOP-10 and 3mm × 4mm DFN-10 Packages

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