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運算放大器 (op amps)
高速運算放大器 (GBW ≥ 50 MHz)

OPA856

現行

1.1-GHz 均一增益頻寬、0.9 nV/√Hz、雙極輸入放大器

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OPA856

現行
產品規格表 立即訂購

產品詳細資料

Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 GBW (typ) (MHz) 1080 BW at Acl (MHz) 1100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 350 Vn at flatband (typ) (nV√Hz) 0.9 Vn at 1 kHz (typ) (nV√Hz) 0.9 Iq per channel (typ) (mA) 17.2 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 106 Input bias current (max) (pA) 5000000 Offset drift (typ) (µV/°C) 0.7 Iout (typ) (mA) 100 2nd harmonic (dBc) 85 3rd harmonic (dBc) 95 Frequency of harmonic distortion measurement (MHz) 10
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3.3 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 GBW (typ) (MHz) 1080 BW at Acl (MHz) 1100 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 350 Vn at flatband (typ) (nV√Hz) 0.9 Vn at 1 kHz (typ) (nV√Hz) 0.9 Iq per channel (typ) (mA) 17.2 Vos (offset voltage at 25°C) (max) (mV) 1.5 Rail-to-rail No Features Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 106 Input bias current (max) (pA) 5000000 Offset drift (typ) (µV/°C) 0.7 Iout (typ) (mA) 100 2nd harmonic (dBc) 85 3rd harmonic (dBc) 95 Frequency of harmonic distortion measurement (MHz) 10
WSON (DSG) 8 4 mm² 2 x 2
  • Unity-gain bandwidth: 1.1 GHz
  • Gain bandwidth product: 1.1 GHz
  • Slew rate: 350 V/µs
  • Low input voltage noise: 0.9 nV/√Hz
  • Low input capacitance:
    • Common-mode: 0.4 pF
    • Differential: 0.7 pF
  • Supply voltage range: 3.3 V to 5.25 V
  • Package: 8-pin WSON
  • Temperature range: –40°C to +125°C
  • Unity-gain bandwidth: 1.1 GHz
  • Gain bandwidth product: 1.1 GHz
  • Slew rate: 350 V/µs
  • Low input voltage noise: 0.9 nV/√Hz
  • Low input capacitance:
    • Common-mode: 0.4 pF
    • Differential: 0.7 pF
  • Supply voltage range: 3.3 V to 5.25 V
  • Package: 8-pin WSON
  • Temperature range: –40°C to +125°C

The OPA856 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 1.1-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode applications.

The graph below shows the bandwidth and noise performance of the OPA856 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from DC to the calculated frequency (f) on the left scale. The OPA856 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA856 is optimized to operate in optical time-of-flight (ToF) systems where the OPA856 is used with time-to-digital converters, such as the TDC7201. Use the OPA856 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401.

The OPA856 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 1.1-GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths in low-capacitance photodiode applications.

The graph below shows the bandwidth and noise performance of the OPA856 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from DC to the calculated frequency (f) on the left scale. The OPA856 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA856 is optimized to operate in optical time-of-flight (ToF) systems where the OPA856 is used with time-to-digital converters, such as the TDC7201. Use the OPA856 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401.
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重要文件 類型 標題 格式選項 日期
* Data sheet OPA856 1.1-GHz Unity-Gain Bandwidth, 0.9 nV /√Hz , Bipolar Input Amplifier datasheet PDF | HTML 2020年 10月 5日
Application brief LiFi: TI High-Speed Products for Optical Wireless Communication PDF | HTML 2023年 8月 7日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日

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DEM-OPA-WSON8-EVM — 採用 DSG（8 接腳 WSON）封裝中用於單通道運算放大器的未填充評估模組

DEM-OPA-WSON8-EVM 是用於 DSG（8 接腳 WSON）封裝中單通道運算放大器的未組裝評估模組。此 EVM 專為高速性能規格而設計，與增益頻寬超過 1GHz 的放大器相容。
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OPA856 Unencrypted PSPICE Model Package

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OPA856 Unencrypted TINA-TI Reference Design Package

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