PGA309, PGA309AI, PGA309AIP Selling Leads, Datasheet
MFG:TI Package Cooled:TSSOP D/C:07+
PGA309, PGA309AI, PGA309AIP Datasheet download
Part Number: PGA309
MFG: TI
Package Cooled: TSSOP
D/C: 07+
MFG:TI Package Cooled:TSSOP D/C:07+
PGA309, PGA309AI, PGA309AIP Datasheet download
MFG: TI
Package Cooled: TSSOP
D/C: 07+
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PDF/DataSheet Download
Datasheet: PGA309
File Size: 306005 KB
Manufacturer: BURR-BROWN [Burr-Brown Corporation]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: PGA309AIPWR
File Size: 306005 KB
Manufacturer: BURR-BROWN [Burr-Brown Corporation]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: PGA309AIPWR
File Size: 306005 KB
Manufacturer: BURR-BROWN [Burr-Brown Corporation]
Download : Click here to Download
The PGA309 is a programmable analog signal conditioner designed for bridge sensors. The analog signal path amplifies the sensor signal and provides digital calibration for zero, span, zero drift, span drift, and sensor linearization errors with applied stress (pressure, strain, etc.). The calibration is done via a One-Wire digital serial interface or through a Two-Wire industry-standard connection. The calibration parameters are stored in external nonvolatile memory (typically SOT23-5) to eliminate manual trimming and achieve long-term stability.
The all-analog signal path contains a 2x2 input multiplexer (mux), auto-zero programmable-gain instrumentation amplifier, linearization circuit, voltage reference, internal oscillator, control logic, and an output amplifier. Programmable level shifting compensates for sensor DC offsets.
The core of the PGA309 is the precision, low-drift, no 1/f noise Front-End PGA (Programmable Gain Amplifier). The overall gain of the Front-End PGA + Output Amplifier can be adjusted from 2.7V/V to 1152V/V. The polarity of the inputs can be switched through the input mux to accommodate sensors with unknown polarity output. The Fault Monitor circuit detects and signals sensor burnout, overload, and system fault conditions.
For detailed application information, see the PGA309 User's Guide (SBOU024), available for download at www.ti.com.