PGA308AIDGSR

Sensor And Detector Interfaces Overview

The PGA308AIDGSR is a single-supply, auto-zero sensor amplifier manufactured by Texas Instruments. It functions as a programmable analog signal conditioner designed for bridge sensors. The device features a voltage input and voltage output interface within a 10-VSSOP package. Electrical specifications include a supply voltage range of 2.7 V to 5.5 V and a typical supply current of 1.6 mA. The operational temperature range extends from -40°C to +125°C. Input bias current is specified at 1.5 nA. The component utilizes a digital one-wire UART-compatible interface for programming gain and offset calibration parameters stored in onboard OTP memory.

Sensor And Detector Interfaces Feature Summary

• Integrates an auto-zero chopper-stabilized amplifier architecture to minimize offset drift and low-frequency noise.
• Includes a digital one-wire interface for configuring gain and offset calibration parameters via the Vout pin.
• Features onboard one-time programmable (OTP) memory with seven memory banks for storing calibration data.
• Supports direct connection to three-terminal sensor modules without requiring external programming hardware.

Sensor And Detector Interfaces Applications

• Signal conditioning for resistive bridge sensors such as pressure transducers and load cells.
• Industrial process control systems requiring high-precision analog signal processing.
• Automotive sensor interfaces utilizing AEC-Q100 qualified components.
• Smart sensor modules integrating amplification and digital calibration in a compact form factor.

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'DGSR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 'A' grade designation meets the extended industrial temperature range requirements of -40°C to +125°C for the target application environment. Ensure compatibility with the 10-VSSOP footprint during PCB layout verification.

Sensor And Detector Interfaces Selection Notes

Select this component when a single-channel signal conditioner with integrated digital calibration is required. Compare against the PGA309 if logic inputs or additional channels are needed. Verify that the 2.7 V to 5.5 V supply range aligns with the system power rails. Consider the PGA308AQDGSRQ1 if automotive qualification under AEC-Q100 standards is mandatory for the end product.

Sensor And Detector Interfaces Part Context

The PGA308 belongs to the PGA308/309 family of programmable sensor signal conditioners. It is distinct from the PGA309, which supports logic inputs and offers different channel configurations. The device serves as a dedicated solution for linearizing and amplifying signals from passive sensor elements, reducing the need for external microcontrollers in basic sensing applications.

Sensor And Detector Interfaces Replacement Considerations

The PGA308AQDGSRQ1 is the automotive-grade equivalent within the same family. Direct functional substitution requires verifying that the automotive qualification and any specific reliability requirements match the design intent. Other variants in the series may differ in package type or input configuration.