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ADA4891-4ARZ-R7

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Analog Devices Operational Amplifier, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADA4891-4ARZ-R7

Analog Devices · Operational Amplifier · SOIC-14

ADA4891-4ARZ-R7 from Analog Devices, in a SOIC-14. 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 OUT1 output Output of amplifier 1; the output swings to within 50 mV of each supply rail.
2 -IN1 input Inverting input of amplifier 1; the input voltage range extends 300 mV below the negative rail.
3 +IN1 input Noninverting input of amplifier 1; the input voltage range extends 300 mV below the negative rail.
4 +VS power_in Positive supply pin; the amplifiers operate from a wide supply range of 2.7 V to 5.5 V.
5 +IN2 input Noninverting input of amplifier 2; the input voltage range extends 300 mV below the negative rail.
6 -IN2 input Inverting input of amplifier 2; the input voltage range extends 300 mV below the negative rail.
7 OUT2 output Output of amplifier 2; the output swings to within 50 mV of each supply rail.
8 OUT3 output Output of amplifier 3; the output swings to within 50 mV of each supply rail.
9 -IN3 input Inverting input of amplifier 3; the input voltage range extends 300 mV below the negative rail.
10 +IN3 input Noninverting input of amplifier 3; the input voltage range extends 300 mV below the negative rail.
11 -VS power_in Negative supply pin; the input voltage range extends 300 mV below this negative rail.
12 +IN4 input Noninverting input of amplifier 4; the input voltage range extends 300 mV below the negative rail.
13 -IN4 input Inverting input of amplifier 4; the input voltage range extends 300 mV below the negative rail.
14 OUT4 output Output of amplifier 4; the output swings to within 50 mV of each supply rail.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package SOIC-14
Category Amplifiers/Comparators
Pins 14

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Output Voltage Swing (RL = 1 kΩ to 2.5 V, 5 V) 0.01 4.98 V RL = 1 kΩ to 2.5 V 4
Output Voltage Swing (RL = 150 Ω to 2.5 V, 5 V) 0.08 4.9 V RL = 150 Ω to 2.5 V 4
Output Voltage Swing (RL = 1 kΩ to 1.5 V, 3 V) 0.01 2.98 V RL = 1 kΩ to 1.5 V 6
Output Voltage Swing (RL = 150 Ω to 1.5 V, 3 V) 0.07 2.87 V RL = 150 Ω to 1.5 V 6
Operating Range 2.7 5.5 V 5
Operating Temperature Range -40 125 °C 5
Input Offset Voltage -10 2.5 10 mV 4
Input Offset Voltage (TMIN to TMAX) -3.1 3.1 mV TMIN to TMAX 4
Input Bias Current -50 2 50 pA 4
Open-Loop Gain (RL = 1 kΩ to 2.5 V, 5 V) 77 83 dB RL = 1 kΩ to 2.5 V 4
Open-Loop Gain (RL = 1 kΩ to 1.5 V, 3 V) 72 76 dB RL = 1 kΩ to 1.5 V 5
Supply Voltage 6 V 7
Storage Temperature Range -65 125 °C 7
Operating Temperature Range (absolute maximum) -40 125 °C 7
Lead Temperature (Soldering) 300 °C Soldering, 10 sec 7
Junction Temperature TJ 175 °C Exceeded for an extended period can result in device failure 7
Thermal Resistance, Junction-to-Ambient (14-Lead SOIC_N) θJA 162 °C/W Still air, JEDEC 4-layer board 7
Quiescent Current per Amplifier (5 V) 4.4 mA 5
Quiescent Current per Amplifier (3 V) 3.5 mA 6
Output Current 125 mA 1% THD with 1 MHz, VO = 2 V p-p 4
Output Current (3 V) 37 mA 1% THD with 1 MHz, VO = 2 V p-p 6
Short-Circuit Current, Sourcing (5 V) 205 mA 4
Short-Circuit Current, Sinking (5 V) 307 mA 4
Short-Circuit Current, Sourcing (3 V) 80 mA 6
Short-Circuit Current, Sinking (3 V) 163 mA 6
Positive PSRR (5 V) 65 dB +VS = 5 V to 5.25 V, −VS = 0 V 5
Negative PSRR (5 V) 63 dB +VS = 5 V, −VS = −0.25 V to 0 V 5
Positive PSRR (3 V) 76 dB +VS = 3 V to 3.15 V, −VS = 0 V 6
Negative PSRR (3 V) 72 dB +VS = 3 V, −VS = −0.15 V to 0 V 6
Common-Mode Rejection Ratio (5 V) CMRR 88 dB VCM = 0 V to 3.0 V 4
Common-Mode Rejection Ratio (3 V) CMRR 87 dB VCM = 0 V to 1.5 V 6
Input Resistance 5 GΩ 4
Input Capacitance 3.2 pF 4
Open-Loop Gain (RL = 150 Ω to 2.5 V, 5 V) 71 dB RL = 150 Ω to 2.5 V 4
Open-Loop Gain (RL = 150 Ω to 1.5 V, 3 V) 65 dB RL = 150 Ω to 1.5 V 5
−3 dB Small-Signal Bandwidth (5 V) 220 MHz G = +1, VO = 0.2 V p-p 4
−3 dB Small-Signal Bandwidth (5 V) 96 MHz G = +2, VO = 0.2 V p-p, RL = 150 Ω to 2.5 V 4
−3 dB Small-Signal Bandwidth (3 V) 175 MHz G = +1, VO = 0.2 V p-p 5
−3 dB Small-Signal Bandwidth (3 V) 80 MHz G = +2, VO = 0.2 V p-p, RL = 150 Ω to 1.5 V 5
Bandwidth for 0.1 dB Gain Flatness (5 V) 25 MHz G = +2, VO = 2 V p-p, RL = 150 Ω to 2.5 V, RF = 374 Ω 4
Bandwidth for 0.1 dB Gain Flatness (3 V) 18 MHz G = +2, VO = 2 V p-p, RL = 150 Ω to 1.5 V, RF = 374 Ω 5
−3 dB Large-Signal Frequency Response (5 V) 40 MHz G = +2, VO = 2 V p-p, RL = 150 Ω 4
−3 dB Large-Signal Frequency Response (3 V) 40 MHz G = +2, VO = 2 V p-p, RL = 150 Ω 5
Settling Time to 0.1% (5 V) 28 ns G = +2, VO = 2 V step 4
Settling Time to 0.1% (3 V) 30 ns G = +2, VO = 2 V step 5
Input Voltage Noise 9 nV/√Hz f = 1 MHz 4
Differential Gain Error (NTSC, 5 V) 0.05 % G = +2, RL = 150 Ω to 2.5 V 4
Differential Gain Error (NTSC, 3 V) 0.23 % G = +2, RL = 150 Ω to 0.5 V, +VS = 2 V, −VS = −1 V 5
Differential Phase Error (NTSC, 5 V) 0.25 Degrees G = +2, RL = 150 Ω to 2.5 V 4
Differential Phase Error (NTSC, 3 V) 0.77 Degrees G = +2, RL = 150 Ω to 0.5 V, +VS = 2 V, −VS = −1 V 5
All-Hostile Crosstalk (5 V) -80 dB f = 5 MHz, G = +2, VO = 2 V p-p 4
All-Hostile Crosstalk (3 V) -80 dB f = 5 MHz, G = +2 5
Offset Drift 6 µV/°C 4

CAD (KiCad official)

  • Symbol: ADA4891-4ARZ-R7
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: ada4891-4arz-r7-etched.step / ada4891-4arz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ada4891-4arz-r7.step / ada4891-4arz-r7.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (24 pp, sha256 e0131dfef4f9ec15, retrieved 2026-10-20, 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