The OPA2836 is a dual, very low power, rail-to-rail output, negative rail input, VFB operational amplifier

The OPA836 and OPA2836 devices (OPA836) are single- and dual-channel, ultra-low power, rail-to-rail output, negative rail input, voltage feedback (VFB) operational amplifiers designed to operate within the supply range of 2.5 V from a single supply to 5.5 V, ±1.25 V to ±2.75 V with dual supplies. Consuming only 1 mA per channel and a unity-gain bandwidth of 205 MHz, these amplifiers set an industry-leading power performance ratio for the A3932SEQ rail-to-rail amplifier.

For battery-operated portable applications where power is critical, the low-power and high-frequency performance of the OPA836 and OPA2836 devices provides performance-to-power ratios unattainable with other devices. Combined with a power-save mode that reduces current to < 1.5 μA, these devices provide an attractive solution for high-frequency amplifiers in battery-powered applications.

The OPA836 RUN package option includes integrated gain setting resistors to achieve the smallest possible footprint (approximately 2.00 mm × 2.00 mm) on the printed circuit board. +1, –1, –1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8 and inverted by adding circuit traces on the PCB Gain can achieve attenuation of –0.1429, –0.1875, –0.25, –0.33, –0.75.

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


●Low battery:

○ Power supply voltage: 2.5V to 5.5V

○ Quiescent current: 1 mA (typ.)

○ Power-down mode: 0.5 μA (typ.)

● Bandwidth: 205 MHz

● Slew rate: 560V/μs

●Rise time: 3 ns (2 VSTEP)

●Settling time (0.1%): 22 ns (2 VSTEP)

●Overdrive recovery time: 60 ns

●Signal to noise ratio: 0.00013% (–117.6 dBc), 1 kHz (1 VRMS)

THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)

HD2/HD3: –85 dBc/–105 dBc, 1 MHz (2 VPP)

Input voltage noise: 4.6 nV/√ Hz (f = 100 kHz)

●Input offset voltage: 65 μV (maximum ±400 μV)

●CMRR: 116 dB

●Output current drive: 50 mA

●RRO: rail-to-rail output

●Input voltage range: –0.2V to +3.9V (5V power supply)

●Operating temperature range: –40°C to +125°C

● Find other high speed op amps (GBW>=50MHz)

8-pin (D) package picture

10-pin (DGS) package picture

10-pin (RMC) package image

10-pin (RUN) package image


●Low-power signal conditioning

●Audio ADC input buffer

●Low-power SAR and ΔΣ ADC drivers

●Portable system

●Low power consumption system

●High density system


Architecture: Voltage Feedback

Number of channels (#): 2

Total supply voltage (Min) (+5V=5, +/-5V=10) : 2.5

Total supply voltage (Max) (+5V=5, +/-5V=10) : 5.5

GBW (typ.) (MHz): 120

Bandwidth @Acl (MHz): 205

Acl, Minimum Spec Gain (V/V): 1

Conversion rate (Typ) (V/us): 560

Flat Band Vn (Typ) (nV/rtHz): 4.6

Vn at 1 kHz (Typ) (nV/rtHz): 4.6

Iq (Typ) (mA) per channel: 1

Vos (bias [email protected] C) (Max) (mV): 0.4

Rail to Rail: In to V-, Out

Features: Shutdown

Rating: Table of Contents

Operating temperature range (℃): -40 to 125

CMRR (typ) (dB): 116

Input Bias Current (Max) (pA): 1000000

Offset Drift (Typ) (uV/C): 1.1

Output current (Typ) (mA): 50

Second harmonic (dBc): 85

Third harmonic (dBc): 79

@MHz: 1