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.
| Vs (Min) (V) |
| Vs (Max) (V) |
| Rating |
| Operating Temperature Range (C) |
| Pin/Package |
| PGA308 |
|---|
| 2.7 |
| 5.5 |
| Military |
| -40 to 125 |
| 10VSON 10VSSOP |
| Sample & Buy |
| Version | Part Number | Definition |
|---|---|---|
| Automotive | PGA308-Q1 | Q100 devices qualified for high-reliability automotive applications targeting zero defects |
| Part # | Name | Product Family | Comments |
|---|---|---|---|
| TPS7A3001 | Vin -3V to -36V, -200mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator | LINEAR REGULATOR (LDO) - SINGLE CHANNEL LDO |
The negative-voltage TPS7A3001 LDO, when paired with the positive voltage TPS7A4901 LDO, provides designers with a total solution for powering precision analog applications. These LDOs feature ultra-high PSRR performance with output noise as low as 16 �Vrms
and are designed to power noise-sensitive applications. Please look at ti.com/pmp5863. See Literature slvt170 See Literature SLVT170, Power management for Precision Analog |
| XTR117 | XTR117 4-20mA Current Loop Transmitter | SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER - 4-20MA CONDITIONING | 2-wire 4-20mA transmitter is often used for output current drive in the same types of applications. |
| TPS7A4901 | Vin 3V to 36V, 150mA, Ultra-Low Noise, High PSRR, Low-Dropout Linear Regulator | LINEAR REGULATOR (LDO) - SINGLE CHANNEL LDO |
The negative-voltage TPS7A3001 LDO, when paired with the positive voltage TPS7A4901 LDO, provides designers with a total solution for powering precision analog applications. These LDOs feature ultra-high PSRR performance with output noise as low as 16 �Vrms
and are designed to power noise-sensitive applications. Please look at ti.com/pmp5863. See Literature slvt170 See Literature SLVT170, Power management for Precision Analog |
| XTR115 | 4-20mA Current Loop Transmitters | SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER - 4-20MA CONDITIONING | 2-wire 4-20mA transmitter is often used for output current drive in the same types of applications. |
| XTR108 | 4-20mA, Two-Wire Transmitter 'Smart' Programmable with Signal Conditioning | SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER - 4-20MA CONDITIONING | 2-wire 4-20mA transmitter is often used for output current drive in the same types of applications. |