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ADA4661-2ARMZ-R7

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

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ADA4661-2ARMZ-R7

Analog Devices · Precision Op Amps · MSOP-8

ADA4661-2ARMZ-R7 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 OUT A output Channel A output; the datasheet specifies rail-to-rail output swing for this device.
2 -IN A input Channel A negative (inverting) input.
3 +IN A input Channel A positive (non-inverting) input.
4 V- power_in Negative supply voltage; the datasheet allows single supply from 3 V to 18 V or dual supply of ±1.5 V to ±9 V.
5 +IN B input Channel B positive (non-inverting) input.
6 -IN B input Channel B negative (inverting) input.
7 OUT B output Channel B output; the datasheet specifies rail-to-rail output swing for this device.
8 V+ power_in Positive supply voltage; the datasheet allows single supply from 3 V to 18 V or dual supply of ±1.5 V to ±9 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
Input offset voltage VOS 30 150 µV 3
Input offset voltage VOS 150 µV VCM = 1.5 V至16.5 V 3
Input offset voltage VOS 500 µV VCM = 1.5 V至16.5 V；−40°C ≤ TA ≤ +125°C 3
Input offset voltage VOS 300 µV VCM = 0 V至18 V 3
Input offset voltage VOS 600 µV VCM = 0 V至18 V；−40°C ≤ TA ≤ +125°C 3
Input offset voltage drift ∆VOS/∆T 0.6 3.1 V/°C −40°C ≤ TA ≤ +125°C 3
Input bias current IB 0.5 15 pA 3
Input bias current IB 100 pA −40°C ≤ TA ≤ +85°C 3
Input bias current IB 900 pA −40°C ≤ TA ≤ +125°C 3
Input offset current IOS 30 pA −40°C ≤ TA ≤ +85°C 3
Input offset current IOS 300 pA −40°C ≤ TA ≤ +125°C 3
Input voltage range 0 18 V 3
Common-mode rejection ratio CMRR 115 135 dB VCM = 1.5 V至16.5 V 3
Common-mode rejection ratio CMRR 110 dB VCM = 1.5 V至16.5 V；−40°C ≤ TA ≤ +125°C 3
Common-mode rejection ratio CMRR 100 118 dB VCM = 0 V至18 V 3
Common-mode rejection ratio CMRR 91 dB VCM = 0 V至18 V；−40°C ≤ TA ≤ +125°C 3
Large-signal voltage gain AVO 120 147 dB RL = 100 kΩ，VOUT = 0.5 V至17.5 V 3
Large-signal voltage gain AVO 120 dB −40°C ≤ TA ≤ +125°C 3
Input resistance, differential mode RINDM 10 GΩ 3
Input resistance, common mode RINCM 10 GΩ 3
High output voltage VOH 17.95 17.97 V RL = 10 kΩ至VCM 3
High output voltage VOH 17.94 V −40°C ≤ TA ≤ +125°C 3
High output voltage VOH 17.6 17.79 V RL = 1 kΩ至VCM 3
High output voltage VOH 17.58 V −40°C ≤ TA ≤ +125°C 3
Low output voltage VOL 14 25 mV RL = 10 kΩ至VCM 3
Low output voltage VOL 40 mV −40°C ≤ TA ≤ +125°C 3
Low output voltage VOL 120 200 mV RL = 1 kΩ至VCM 3
Low output voltage VOL 300 mV −40°C ≤ TA ≤ +125°C 3
Continuous output current IOUT 40 mA 压差 = 1 V 3
Short-circuit current ISC -220 220 mA 脉宽 = 10 ms；参见“最大功耗”部分 3
Power supply rejection ratio PSRR 120 145 dB VSY = 3.0 V至18 V 3
Power supply rejection ratio PSRR 120 dB −40°C ≤ TA ≤ +125°C 3
Supply current per amplifier ISY 630 725 µA IOUT = 0 mA 3
Supply current per amplifier ISY 975 µA −40°C ≤ TA ≤ +125°C 3
Supply voltage 20.5 V 9
Input current -10 10 mA 9
Storage temperature range -65 150 °C 9
Operating temperature range -40 125 °C 9
Junction temperature -65 150 °C 9
Lead temperature (soldering) 300 °C 焊接，60秒 9
ESD human body model 4 kV 人体模型 9
ESD machine model 400 V 机器模型 9
ESD field-induced charged device model (FICDM) 1.25 kV 场感应充电器件模型 9
Supply voltage (single supply) 3 18 V 单电源供电 1
Operating temperature range (rated) -40 125 °C 额定温度范围 1
Junction-to-ambient thermal resistance θJA 142 °C/W 8引脚 MSOP 9
Junction-to-case thermal resistance θJC 45 °C/W 8引脚 MSOP 9

CAD (KiCad official)

  • Symbol: ADA4661-2ARMZ-R7
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ada4661-2armz-r7-etched.step / ada4661-2armz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ada4661-2armz-r7.step / ada4661-2armz-r7.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (32 pp, sha256 a0a2104e462aa280, retrieved 2026-10-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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