Overview
The PGA308AIDRKR, produced by Texas Instruments, is a programmable analog sensor signal conditioner designed to amplify and condition sensor signals with high precision. This device features a single supply operation with a voltage range of +2.7V to +5.5V and an operating temperature range of –40°C to +125°C. It is particularly useful for applications requiring digital calibration for offset and gain, making it ideal for bridge sensors and other sensor modules. The PGA308AIDRKR includes a 2×2 input multiplexer for electronic sensor lead swapping, coarse and fine offset and gain adjustments, and fault monitor circuitry to detect sensor burnout, overload, and system faults.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Supply Voltage - Min | 2.7 V |
| Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +125°C |
| Package Type | 10-VSON (3x4), MSOP-10, 3mm × 4mm DFN-10 |
| Mounting Style | SMD/SMT |
| Input Bias Current | 100 pA |
| Number of Channels | 1 Channel |
| Interface Type | UART (One-Wire Digital UART Interface) |
| Output Type | Voltage |
| Typical Supply Current | 1.6 mA |
Key Features
- 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/V OUT Clamp Function
- Seven Banks OTP Memory
- One-Wire Digital UART Interface
Applications
The PGA308AIDRKR is suitable for a variety of applications, including industrial automation, medical devices, and automotive systems where precise sensor signal conditioning is required. It is particularly useful in scenarios involving bridge sensors, such as strain gauges, pressure sensors, and load cells. The device's ability to perform digital calibration and its fault monitoring capabilities make it an excellent choice for critical sensing applications.
Q & A
- What is the operating voltage range of the PGA308AIDRKR?
The operating voltage range is +2.7V to +5.5V. - What is the temperature range for the PGA308AIDRKR?
The temperature range is –40°C to +125°C. - What types of packages are available for the PGA308AIDRKR?
The device is available in 10-VSON (3x4), MSOP-10, and 3mm × 4mm DFN-10 packages. - Does the PGA308AIDRKR support digital calibration?
Yes, it supports digital calibration for offset and gain via a One-Wire, UART-compatible interface. - What is the purpose of the DOUT/V OUT Clamp pin?
The DOUT/V OUT Clamp pin can be used as a programmable digital output or as a V OUT over-voltage clamp. - How many banks of OTP memory does the PGA308AIDRKR have?
The device has seven banks of one-time programmable (OTP) memory. - What is the input bias current of the PGA308AIDRKR?
The input bias current is 100 pA. - Is the PGA308AIDRKR RoHS compliant?
Yes, the PGA308AIDRKR is RoHS compliant. - What type of interface does the PGA308AIDRKR use?
The device uses a One-Wire Digital UART Interface. - What is the typical supply current of the PGA308AIDRKR?
The typical supply current is 1.6 mA.
