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High-speed op amps (GBW ≥ 50 MHz)

OPA2835

ACTIVE

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

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Data sheet

OPA2835

ACTIVE
Data sheet Order now

Product details

Architecture Voltage FB Number of channels 2 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) 10 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 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 2 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) 10 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 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
SOIC (D) 8 29.4 mm² 4.9 x 6 UQFN (RMC) 10 4 mm² 2 x 2 VSSOP (DGS) 10 14.7 mm² 3 x 4.9 WQFN (RUN) 10 4 mm² 2 x 2
  • 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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Type Title Date
* Data sheet OPAx835 Ultra-Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp datasheet (Rev. J) PDF | HTML 11 Mar 2021
More literature Higher accuracy using an external amplifier in ultrasonic flow measurement 05 Feb 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
More literature OPA835 Op Amp Applications (Rev. B) 19 Oct 2016
User guide OPA2835DGS, OPA2836DGS EVM 07 Sep 2011
Analog Design Journal Designing for low distortion with high-speed op amps 02 Mar 2005
More literature Voltage Feedback vs. Current Feedback Op Amps 30 Nov 1998

Design & development

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SOIC (D) 8 View options
UQFN (RMC) 10 View options
VSSOP (DGS) 10 View options
WQFN (RUN) 10 View options

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