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High-speed op amps (GBW ≥ 50 MHz)

OPA835

ACTIVE

Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier

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Data sheet

OPA835

ACTIVE
Data sheet Order now

Product details

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) 30 BW at Acl (MHz) 56 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 160 Vn at flatband (typ) (nV√Hz) 9.3 Vn at 1 kHz (typ) (nV√Hz) 9.3 Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail In to V-, Out Features Integrated gain setting, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 113 Input bias current (max) (pA) 400000 Offset drift (typ) (µV/°C) 2.25 Iout (typ) (mA) 40 2nd harmonic (dBc) 70 3rd harmonic (dBc) 73 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) 30 BW at Acl (MHz) 56 Acl, min spec gain (V/V) 1 Slew rate (typ) (V/µs) 160 Vn at flatband (typ) (nV√Hz) 9.3 Vn at 1 kHz (typ) (nV√Hz) 9.3 Iq per channel (typ) (mA) 0.25 Vos (offset voltage at 25°C) (max) (mV) 0.5 Rail-to-rail In to V-, Out Features Integrated gain setting, Shutdown Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 113 Input bias current (max) (pA) 400000 Offset drift (typ) (µV/°C) 2.25 Iout (typ) (mA) 40 2nd harmonic (dBc) 70 3rd harmonic (dBc) 73 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 6 8.12 mm² (2.9 mm × 2.8 mm) WQFN (RUN) 10 4 mm² (2 mm × 2 mm)
  • Ultra-Low Power
    • Supply Voltage: 2.5 V to 5.5 V
    • Quiescent Current: 250 µA/ch (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 56 MHz (AV = 1 V/V)
  • Slew Rate: 160 V/µs
  • Rise Time: 10 ns (2 VSTEP)
  • Settling Time (0.1%): 55 ns (2 VSTEP)
  • Overdrive Recovery Time: 200 ns
  • SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 100 µV (±500-µV Maximum)
  • CMRR: 113 dB
  • Output Current Drive: 40 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
  • Ultra-Low Power
    • Supply Voltage: 2.5 V to 5.5 V
    • Quiescent Current: 250 µA/ch (Typical)
    • Power Down Mode: 0.5 µA (Typical)
  • Bandwidth: 56 MHz (AV = 1 V/V)
  • Slew Rate: 160 V/µs
  • Rise Time: 10 ns (2 VSTEP)
  • Settling Time (0.1%): 55 ns (2 VSTEP)
  • Overdrive Recovery Time: 200 ns
  • SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)
  • THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
  • HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)
  • Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
  • Input Offset Voltage: 100 µV (±500-µV Maximum)
  • CMRR: 113 dB
  • Output Current Drive: 40 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 OPA835 and OPA2835 devices (OPAx835) are single and dual 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 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power 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 OPA835 and OPA2835 devices offers performance versus power 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 OPA835 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 OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.

The OPA835 and OPA2835 devices (OPAx835) are single and dual 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 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power 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 OPA835 and OPA2835 devices offers performance versus power 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 OPA835 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 OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.
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Top documentation Type Title Format options Date
* Data sheet OPAx835 Ultra-Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp datasheet (Rev. J) PDF | HTML Mar 11, 2021
E-book E-book: An engineer’s guide to industrial robot designs Feb 12, 2020
Application brief Higher accuracy using an external amplifier in ultrasonic flow measurement Feb 5, 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML Mar 28, 2017
Application note OPA835 Op Amp Applications (Rev. B) Oct 19, 2016
Analog design Journal Designing for low distortion with high-speed op amps Mar 2, 2005
Application note Voltage Feedback vs. Current Feedback Op Amps Nov 30, 1998

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