PGA308-DIE Series

Single-Supply, Auto-Zero Sensor Amplifier with Programmable Gain and Offset.

Catalog

Single-Supply, Auto-Zero Sensor Amplifier with Programmable Gain and Offset.

Part	Input Type	Package / Case	Supplier Device Package	Current - Supply	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [x]	Package / Case [x]
Texas Instruments PGA308AIDRKT	Voltage	10-VFDFN Exposed Pad	10-VSON (3x4)	1.6 mA	Surface Mount	Signal Conditioner	125 °C	-40 °C
Texas Instruments PGA308AIDGSR	Voltage	10-MSOP 10-TFSOP	10-VSSOP	1.6 mA	Surface Mount	Signal Conditioner	125 °C	-40 °C	3 mm	0.118 in
Texas Instruments PGA308AIDGSRG4	Voltage	10-MSOP 10-TFSOP	10-VSSOP	1.6 mA	Surface Mount	Signal Conditioner	125 °C	-40 °C	3 mm	0.118 in
Texas Instruments PGA308AIDRKR	Voltage	10-VFDFN Exposed Pad	10-VSON (3x4)	1.6 mA	Surface Mount	Signal Conditioner	125 °C	-40 °C
Texas Instruments PGA308TDD1	Voltage	Die	Die	1.6 mA	Surface Mount	Signal Conditioner	70 °C	0 °C

Catalog

Single-Supply, Auto-Zero Sensor Amplifier with Programmable Gain and Offset.

Key Features

• Digital Calibration for Bridge SensorsOffset Select: Coarse and FineGain Select: Coarse and FineBridge Fault MonitorInput Mux for Lead SwapOver/Under Scale LimitsDOUT/VOUTClamp FunctionSeven Banks OTP MemoryOne-Wire Digital UART InterfaceOperating Voltage: +2.7V to +5.5VTemperature Range: –40°C to +125°CMSOP-10 and 3mm × 4mm DFN-10 PackagesDigital Calibration for Bridge SensorsOffset Select: Coarse and FineGain Select: Coarse and FineBridge Fault MonitorInput Mux for Lead SwapOver/Under Scale LimitsDOUT/VOUTClamp FunctionSeven Banks OTP MemoryOne-Wire Digital UART InterfaceOperating Voltage: +2.7V to +5.5VTemperature Range: –40°C to +125°CMSOP-10 and 3mm × 4mm DFN-10 Packages

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 VOUTand the assembly programmed through the VOUTpin. 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/VCLAMPpin can be used as a programmable digital output or as a VOUTover-voltage clamp. For detailed application information, see the PGA308 User's Guide (SBOU069) available for download at www.ti.com. 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 VOUTand the assembly programmed through the VOUTpin. 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/VCLAMPpin can be used as a programmable digital output or as a VOUTover-voltage clamp. For detailed application information, see the PGA308 User's Guide (SBOU069) available for download at www.ti.com.