首頁 放大器 可編程與可變增益放大器 (PGA 與 VGA)
首頁
放大器
可編程與可變增益放大器 (PGA 與 VGA)

PGA309-HT

現行

電壓輸出可編程感測器調節器，PGA309-HT

立即訂購
產品規格表

PGA309-HT

現行
產品規格表 立即訂購

產品詳細資料

PGA/VGA PGA Number of channels 2 Vs (min) (V) 2.7 Vs (max) (V) 5.5 Input type Differential Output type Single-ended Input offset drift (±) (typ) (µV/°C) 0.2 Interface type 1-wire, Analog 2 Wire, UART Noise at 1 kHz (typ) (V√Hz) 0.00000021 BW at Acl (MHz) 2 Acl, min spec gain (V/V) 4 Gain (max) (dB) 42 Architecture CMOS Features High Temperature, Temperature sensing Vos (offset voltage at 25°C) (typ) (mV) 0.003 Input voltage noise (typ) (µV√Hz) 0.21 Slew rate (typ) (V/µs) 0.5 Iq per channel (typ) (mA) 1.2 Gain error (typ) (%) 0.2 Gain drift (max) (ppm/°C) 10 Rating High Temp Operating temperature range (°C) -55 to 150
PGA/VGA PGA Number of channels 2 Vs (min) (V) 2.7 Vs (max) (V) 5.5 Input type Differential Output type Single-ended Input offset drift (±) (typ) (µV/°C) 0.2 Interface type 1-wire, Analog 2 Wire, UART Noise at 1 kHz (typ) (V√Hz) 0.00000021 BW at Acl (MHz) 2 Acl, min spec gain (V/V) 4 Gain (max) (dB) 42 Architecture CMOS Features High Temperature, Temperature sensing Vos (offset voltage at 25°C) (typ) (mV) 0.003 Input voltage noise (typ) (µV√Hz) 0.21 Slew rate (typ) (V/µs) 0.5 Iq per channel (typ) (mA) 1.2 Gain error (typ) (%) 0.2 Gain drift (max) (ppm/°C) 10 Rating High Temp Operating temperature range (°C) -55 to 150
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • Complete Bridge Sensor Conditioner
  • Voltage Output: Ratiometric or Absolute
  • Digital Cal: No Potentiometers/Sensor Trims
  • Sensor Error Compensation
    • Span, Offset, and Temperature Drifts
  • Low Error, Time-Stable
  • Sensor Linearization Circuitry
  • Temperature Sense: Internal or External
  • Calibration Lookup Table Logic
    • Uses External EEPROM (SOT23-5)
  • Over/Under-Scale Limiting
  • Sensor Fault Detection
  • +2.7V TO +5.5V Operation
  • Small TSSOP-16 Package
  • Complete Bridge Sensor Conditioner
  • Voltage Output: Ratiometric or Absolute
  • Digital Cal: No Potentiometers/Sensor Trims
  • Sensor Error Compensation
    • Span, Offset, and Temperature Drifts
  • Low Error, Time-Stable
  • Sensor Linearization Circuitry
  • Temperature Sense: Internal or External
  • Calibration Lookup Table Logic
    • Uses External EEPROM (SOT23-5)
  • Over/Under-Scale Limiting
  • Sensor Fault Detection
  • +2.7V TO +5.5V Operation
  • Small TSSOP-16 Package

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 reference application information, see the commercial device PGA309 User's Guide (SBOU024) available for download at www.ti.com.

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 reference application information, see the commercial device PGA309 User's Guide (SBOU024) available for download at www.ti.com.
filter 尋找其它 可編程與可變增益放大器 (PGA 與 VGA)
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 1
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 Voltage Output Programmable Sensor Conditioner, PGA309-HT datasheet (Rev. A) 2013/12/26

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 16 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片