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Analog Devices AD820ARMZ-R7 — Analog & Data Acquisition

AD820ARMZ-R7 JFET Op-Amp, 1.9 MHz, Rail-to-Rail Output

MPNAD820ARMZ-R7
End of Life

Analog Devices AD820ARMZ-R7, single JFET op-amp, 1.9 MHz gain bandwidth, 3V/µs slew rate, rail-to-rail output, 5 V to 36 V supply, 8-MSOP package, -40°C to 85°C.

$6.53Ref. price · indicative, final on quote
Analog Devices AD820ARMZ-R7 datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AD820ARMZ-R7 specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeJ-FET
Voltage - input offset400 µV
Voltage - supply span36 V
Current - supply700µA
Current - input bias2 pA
Current - output (Channel)20 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product1.9 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate3V/µs
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Number of circuits1

Product details

The rail-to-rail output stage lets it swing close to the supply rails in single-supply circuits from 5 V logic rails up to 36 V industrial buses. Supply current is 700 µA per amplifier — moderate for a JFET part, but the low bias current and wide supply range often justify the power budget in instrumentation and data-acquisition front ends.

Package and footprint — 8-MSOP, surface-mount only

The 8-MSOP is a common footprint for precision op-amps, and the pinout is standard for single JFET amplifiers: offset null, inverting input, non-inverting input, negative supply, output, positive supply, and two null terminals.

Temperature range and deployment environments

Frequently asked questions

What is the AD820ARMZ-R7 equivalent?

The closest functional equivalent within the same ADI family is the AD820ARZ-REEL, which shares the same 1.8 MHz gain bandwidth, 3V/µs slew rate, 2 pA input bias, and rail-to-rail output, but comes in an SOIC-8 package instead of MSOP. If you need a wider bandwidth, the AD8627AKSZ-REEL7 offers 5 MHz and 5V/µs in a SC-70-5 package, though it is a single amplifier with lower output current (15 mA). For a quad-channel alternative, the AD8625ARZ-REEL7 packs four amplifiers with the same 5 MHz bandwidth in an SOIC-14 package.

Can AD820ARMZ-R7 be used in single-supply circuits?

Yes. The rail-to-rail output stage allows the output to swing within millivolts of both supply rails, and the input common-mode range extends from the negative rail to within about 1.1 V of the positive rail. For a 5 V single supply, the input range is approximately 0 V to 3.9 V, which covers most sensor and ADC interface signals. The supply voltage range of 5 V to 36 V means it works on a single 5 V logic rail or a 24 V industrial bus without a split supply.

Is AD820ARMZ-R7 a single or dual op amp?

It is a single op-amp (one circuit) in an 8-pin MSOP package. For dual or quad channel counts, look at the AD822 (dual) or AD824 (quad) families from the same JFET series.