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AD8646ARMZ

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Analog Devices Operational Amplifier, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AD8646ARMZ

Analog Devices · Operational Amplifier · MSOP-8

AD8646ARMZ from Analog Devices, in a MSOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTA output Output of amplifier A; the datasheet specifies rail-to-rail output swing and a short-circuit output current of ±120 mA at VSY = 5 V.
2 -INA input Inverting input of amplifier A; the input voltage range is GND to VSY (common-mode range 0 V to 5 V at VSY = 5 V).
3 +INA input Non-inverting input of amplifier A; the input voltage range is GND to VSY (common-mode range 0 V to 5 V at VSY = 5 V).
4 V- power_in Negative supply pin; the device operates from a single supply of 2.7 V to 5.5 V, and the absolute maximum supply voltage is 6 V.
5 +INB input Non-inverting input of amplifier B; the input voltage range is GND to VSY (common-mode range 0 V to 5 V at VSY = 5 V).
6 -INB input Inverting input of amplifier B; the input voltage range is GND to VSY (common-mode range 0 V to 5 V at VSY = 5 V).
7 OUTB output Output of amplifier B; the datasheet specifies rail-to-rail output swing and a short-circuit output current of ±120 mA at VSY = 5 V.
8 V+ power_in Positive supply pin; the device operates from a single supply of 2.7 V to 5.5 V, and the absolute maximum supply voltage is 6 V.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-8
Category Amplifiers/Comparators
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Offset Voltage [VSY=5 V] VOS 0.6 2.5 mV VCM = 0 V to 5 V 3
Offset Voltage over temperature [VSY=5 V] VOS 3.2 mV −40°C < TA < +125°C 3
Offset Voltage Drift [VSY=5 V] ΔVOS/ΔT 1.8 7.5 μV/°C −40°C < TA < +125°C 3
Input Bias Current [VSY=5 V] IB 0.3 1 pA 3
Input Bias Current over temperature [VSY=5 V] IB 50 pA −40°C < TA < +85°C 3
Input Bias Current over temperature [VSY=5 V] IB 550 pA −40°C < TA < +125°C 3
Input Offset Current [VSY=5 V] IOS 0.1 0.5 pA 3
Input Offset Current over temperature [VSY=5 V] IOS 50 pA −40°C < TA < +85°C 3
Input Offset Current over temperature [VSY=5 V] IOS 250 pA −40°C < TA < +125°C 3
Input Voltage Range [VSY=5 V] VCM 0 5 V 3
Common-Mode Rejection Ratio [VSY=5 V] CMRR 67 84 dB VCM = 0 V to 5 V 3
Large Signal Voltage Gain [VSY=5 V] AVO 104 116 dB RL = 2 kΩ, VO = 0.5 V to 4.5 V 3
Output Voltage High [VSY=5 V] VOH 4.98 4.99 V IOUT = 1 mA 3
Output Voltage High over temperature [VSY=5 V] VOH 4.9 V IOUT = 1 mA, −40°C < TA < +125°C 3
Output Voltage High [VSY=5 V] VOH 4.85 4.92 V IOUT = 10 mA 3
Output Voltage High over temperature [VSY=5 V] VOH 4.7 V IOUT = 10 mA, −40°C < TA < +125°C 3
Output Voltage Low [VSY=5 V] VOL 8.4 20 mV IOUT = 1 mA 3
Output Voltage Low over temperature [VSY=5 V] VOL 40 mV IOUT = 1 mA, −40°C < TA < +125°C 3
Output Voltage Low [VSY=5 V] VOL 78 145 mV IOUT = 10 mA 3
Output Voltage Low over temperature [VSY=5 V] VOL 200 mV IOUT = 10 mA, −40°C < TA < +125°C 3
Output Current [VSY=5 V] Isc -120 120 mA Short circuit 3
Power Supply Rejection Ratio [VSY=5 V] PSRR 63 80 dB VSY = 2.7 V to 5.5 V 3
Supply Current per Amplifier [VSY=5 V] ISY 1.5 2 mA 3
Supply Current per Amplifier over temperature [VSY=5 V] ISY 2.5 mA −40°C < TA < +125°C 3
Offset Voltage [VSY=2.7 V] VOS 0.6 2.5 mV VCM = 0 V to 2.7 V 5
Offset Voltage over temperature [VSY=2.7 V] VOS 3.2 mV −40°C < TA < +125°C 5
Offset Voltage Drift [VSY=2.7 V] ΔVOS/ΔT 1.8 7 μV/°C −40°C < TA < +125°C 5
Input Bias Current [VSY=2.7 V] IB 0.2 1 pA 5
Input Bias Current over temperature [VSY=2.7 V] IB 50 pA −40°C < TA < +85°C 5
Input Bias Current over temperature [VSY=2.7 V] IB 550 pA −40°C < TA < +125°C 5
Input Offset Current [VSY=2.7 V] IOS 0.1 0.5 pA 5
Input Offset Current over temperature [VSY=2.7 V] IOS 50 pA −40°C < TA < +85°C 5
Input Offset Current over temperature [VSY=2.7 V] IOS 250 pA −40°C < TA < +125°C 5
Input Voltage Range [VSY=2.7 V] VCM 0 2.7 V 5
Common-Mode Rejection Ratio [VSY=2.7 V] CMRR 62 79 dB VCM = 0 V to 2.7 V 5
Large Signal Voltage Gain [VSY=2.7 V] AVO 95 102 dB RL = 2 kΩ, VO = 0.5 V to 2.2 V 5
Output Voltage High [VSY=2.7 V] VOH 2.65 2.68 V IOUT = 1 mA 5
Output Voltage High over temperature [VSY=2.7 V] VOH 2.6 V IOUT = 1 mA, −40°C < TA < +125°C 5
Output Voltage Low [VSY=2.7 V] VOL 11 25 mV IOUT = 1 mA 5
Output Voltage Low over temperature [VSY=2.7 V] VOL 30 mV IOUT = 1 mA, −40°C < TA < +125°C 5
Output Current [VSY=2.7 V] Isc -63 63 mA Short circuit 5
Power Supply Rejection Ratio [VSY=2.7 V] PSRR 63 80 dB VSY = 2.7 V to 5.5 V 5
Supply Current per Amplifier [VSY=2.7 V] ISY 1.6 2 mA 5
Supply Current per Amplifier over temperature [VSY=2.7 V] ISY 2.5 mA −40°C < TA < +125°C 5
Supply Voltage 6 V 6
Differential Input Voltage -6 6 V 6
Storage Temperature Range -65 150 °C 6
Operating Temperature Range -40 125 °C 6
Lead Temperature (Soldering 60 sec) 300 °C Soldering 60 sec 6
Junction Temperature 150 °C 6
Thermal Resistance junction-to-ambient, 8-Lead MSOP θJA 210 °C/W Device soldered in circuit board (worst case) 6
Thermal Resistance junction-to-case, 8-Lead MSOP θJC 45 °C/W 6
Supply Voltage (single supply) VSY 2.7 5.5 V Single-supply operation (Features) 1

CAD (KiCad official)

  • Symbol: AD8646ARMZ
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ad8646armz-etched.step / ad8646armz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8646armz.step / ad8646armz.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (18 pp, sha256 ad92dbf54623781a, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF