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

OPA836

現行

超低功耗、軌至軌輸出、負軌輸入 VFB 運算放大器

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產品規格表

OPA836

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) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 118 BW at Acl (MHz) 205 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 560 Vn at flatband (typ) (nV√Hz) 4.6 Vn at 1 kHz (typ) (nV√Hz) 4.6 Iq per channel (typ) (mA) 1 Vos (offset voltage at 25°C) (max) (mV) 0.4 Rail-to-rail In to V-, Out Features Integrated gain setting, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 116 Input bias current (max) (pA) 1000000 Offset drift (typ) (µV/°C) 1.1 Iout (typ) (mA) 50 2nd harmonic (dBc) 85 3rd harmonic (dBc) 79 Frequency of harmonic distortion measurement (MHz) 1
Architecture Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 2.5 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.5 GBW (typ) (MHz) 118 BW at Acl (MHz) 205 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 560 Vn at flatband (typ) (nV√Hz) 4.6 Vn at 1 kHz (typ) (nV√Hz) 4.6 Iq per channel (typ) (mA) 1 Vos (offset voltage at 25°C) (max) (mV) 0.4 Rail-to-rail In to V-, Out Features Integrated gain setting, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 116 Input bias current (max) (pA) 1000000 Offset drift (typ) (µV/°C) 1.1 Iout (typ) (mA) 50 2nd harmonic (dBc) 85 3rd harmonic (dBc) 79 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 WQFN (RUN) 10 4 mm² 2 x 2
  • Low Power:
    • Supply Voltage: 2.5 V to 5.5 V
    • Quiescent Current: 1 mA (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 205 MHz
  • Slew Rate: 560 V/µs
  • Rise Time: 3 ns (2 VSTEP)
  • Settling Time (0.1%): 22 ns (2 VSTEP)
  • Overdrive Recovery Time: 60 ns
  • SNR: 0.00013% (–117.6 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –85 dBc/–105 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 4.6 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 65 µV (±400-µV Maximum)
  • CMRR: 116 dB
  • Output Current Drive: 50 mA
  • RRO: Rail-to-Rail Output
  • Input Voltage Range: –0.2 V to +3.9 V (5-V Supply)
  • Operating Temperature Range: –40°C to +125°C
  • Low Power:
    • Supply Voltage: 2.5 V to 5.5 V
    • Quiescent Current: 1 mA (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 205 MHz
  • Slew Rate: 560 V/µs
  • Rise Time: 3 ns (2 VSTEP)
  • Settling Time (0.1%): 22 ns (2 VSTEP)
  • Overdrive Recovery Time: 60 ns
  • SNR: 0.00013% (–117.6 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –85 dBc/–105 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 4.6 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 65 µV (±400-µV Maximum)
  • CMRR: 116 dB
  • Output Current Drive: 50 mA
  • RRO: Rail-to-Rail Output
  • Input Voltage Range: –0.2 V to +3.9 V (5-V Supply)
  • Operating Temperature Range: –40°C to +125°C

The OPA836 and OPA2836 devices (OPAx836) are single- and dual-channel, ultra-low power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power-supply range of 2.5 V to 5.5 V with a single supply, or ±1.25 V to ±2.75 V with a dual supply. Consuming only 1 mA per channel and a unity-gain bandwidth of 205 MHz, these amplifiers set an industry-leading power-to-performance ratio for rail-to-rail amplifiers.

For battery-powered, portable applications where power is of key importance, the low-power consumption and high-frequency performance of the OPA836 and OPA2836 devices offer performance-versus-power capability that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.

The OPA836 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit board (approximately 2.00 mm × 2.00 mm). By adding circuit traces on the PCB, gains of +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverting attenuations of –0.1429, –0.1875, –0.25, –0.33, –0.75 can be achieved. See Table 9-1 and Table 9-2 for details.

The OPA836 and OPA2836 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.

The OPA836 and OPA2836 devices (OPAx836) are single- and dual-channel, ultra-low power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power-supply range of 2.5 V to 5.5 V with a single supply, or ±1.25 V to ±2.75 V with a dual supply. Consuming only 1 mA per channel and a unity-gain bandwidth of 205 MHz, these amplifiers set an industry-leading power-to-performance ratio for rail-to-rail amplifiers.

For battery-powered, portable applications where power is of key importance, the low-power consumption and high-frequency performance of the OPA836 and OPA2836 devices offer performance-versus-power capability that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.

The OPA836 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit board (approximately 2.00 mm × 2.00 mm). By adding circuit traces on the PCB, gains of +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverting attenuations of –0.1429, –0.1875, –0.25, –0.33, –0.75 can be achieved. See Table 9-1 and Table 9-2 for details.

The OPA836 and OPA2836 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.
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技術文件

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重要文件 類型 標題 格式選項 日期
* Data sheet OPAx836 Very-Low-Power, Rail-to-Rail Out, Negative-Rail In, VFB Op Amps datasheet (Rev. J) 2021年 3月 12日
Product overview High Speed Amplifiers for Motor Encoders and Position Sensing PDF | HTML 2025年 4月 11日
E-book An Engineer's Guide to Current Sensing (Rev. B) 2022年 4月 12日
Application brief Increase Measurement Accuracy With HS Amps for Low-Side Shunt Current Monitoring (Rev. A) 2019年 8月 26日
Application brief Higher accuracy using an external amplifier in ultrasonic flow measurement 2019年 2月 5日
Application note Low-Cost, Low-Power, Small 14-bit AFE: Interleaved ADCs Scalable up to 7.5 MSPS 2017年 5月 26日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Technical article When to use an amplifier with rail-to-rail inputs – and what to watch out for PDF | HTML 2016年 6月 30日
Technical article Has distortion got your amplifier down? Get more bandwidth! PDF | HTML 2015年 12月 4日
Application note OPA836 Low-Power Op Amp Applications 2011年 9月 8日
Analog Design Journal Designing for low distortion with high-speed op amps 2005年 3月 2日
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005年 1月 17日
Application note Voltage Feedback vs. Current Feedback Op Amps 1998年 11月 30日

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模擬型號

OPA836 PSPICE Model (Rev. C)

SLOM218C.ZIP (33 KB) - PSpice Model
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模擬型號

OPA836 TINA-TI Reference Design (Rev. A)

SLOM220A.TSC (137 KB) - TINA-TI Reference Design
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SLOM219A.ZIP (8 KB) - TINA-TI Spice Model
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SOT-23 (DBV) 6 Ultra Librarian
WQFN (RUN) 10 Ultra Librarian
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