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AD628ARZ-R7

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Analog Devices Differential Amplifiers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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AD628ARZ-R7

Analog Devices · Differential Amplifiers · SOIC-8

AD628ARZ-R7 from Analog Devices, in a SOIC-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 +IN input Noninverting input of the difference amplifier; it sits next to the power pins (Pin 2 and Pin 7) so the input impedance balance and CMRR are preserved at higher frequencies.
2 -VS power_in Negative supply voltage; the part operates from dual supplies of ±2.25 V to ±18 V or a single supply of 4.5 V to 36 V.
3 VREF power_in Reference voltage input that sets the output common-mode voltage of the difference amplifier, which equals the voltage applied to this pin.
4 CFILT passive Connection to the internal precision 10 kΩ resistor (trimmed to better than ±0.1%) at the output of the difference amplifier; a capacitor here forms a low-pass filter (C = 15.9/ft µF).
5 OUT output Amplifier output; the output short-circuit duration is indefinite according to the Absolute Maximum Ratings.
6 RG input Inverting input of the user-configurable output amplifier (A2), used with REXT1 and REXT2 to set the output gain G = (1 + REXT1/REXT2).
7 +VS power_in Positive supply voltage; the part operates from ±2.25 V to ±18 V dual supplies or 4.5 V to 36 V single supply.
8 -IN input Inverting input of the difference amplifier, with an input common-mode and differential voltage range of ±120 V at VS = ±15 V.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package SOIC-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
Gain Range 0.11 100 V/V See Figure 29; VS = ±15 V (table header) 3
Offset Voltage -1.5 1.5 mV VCM = 0 V; RTI of input pins; output amplifier G = +1 3
Offset Voltage vs. Temperature 4 8 μV/°C VS = ±15 V (table header) 3
CMRR (RTI of input pins) CMRR 75 dB RTI of input pins; G = +0.1 to +100 3
CMRR at 500 Hz CMRR 75 dB 500 Hz 3
Minimum CMRR Over Temperature CMRR 70 dB −40°C to +85°C 3
CMRR vs. Temperature CMRR 1 4 (μV/V)/°C VS = ±15 V (table header) 3
PSRR (RTI) PSRR 77 94 dB VS = ±10 V to ±18 V 3
Input Voltage Range, Common Mode -120 120 V VS = ±15 V (table header) 3
Input Voltage Range, Differential -120 120 V VS = ±15 V (table header) 3
Differential Amplifier Gain Error -0.1 0.01 0.1 % VS = ±15 V (table header) 3
Differential Amplifier Nonlinearity vs. Temperature 3 10 ppm VS = ±15 V (table header) 3
Differential Amplifier Offset Voltage (RTI of input pins) -1.5 1.5 mV RTI of input pins 3
Differential Amplifier CMRR (RTI of input pins) CMRR 75 dB RTI of input pins; G = +0.1 to +100 3
Differential Amplifier CMRR at 500 Hz CMRR 75 dB 500 Hz 3
Differential Amplifier Minimum CMRR Over Temperature CMRR 70 dB −40°C to +85°C 3
Differential Amplifier CMRR vs. Temperature CMRR 1 4 (μV/V)/°C VS = ±15 V (table header) 3
Output Resistance Error -0.1 0.1 % VS = ±15 V (table header) 3
Output Amplifier Offset Voltage (RTI of output amp) -0.15 0.15 mV RTI of output amp 4
Output Voltage Swing -14.2 14.1 V RL = 10 kΩ 4
Output Voltage Swing -13.8 13.6 V RL = 2 kΩ 4
Bias Current 1.5 3 nA VS = ±15 V (table header) 4
Offset Current 0.2 0.5 nA VS = ±15 V (table header) 4
Operating Range (dual supply) 2.25 18 V ±VS; dual supply 4
Operating Temperature Range -40 85 °C 4
Gain Range 0.11 100 V/V See Figure 29; VS = 5 V (table header) 5
Offset Voltage -3 3 mV VCM = 2.25 V; RTI of input pins; output amplifier G = +1 5
Offset Voltage vs. Temperature 6 15 μV/°C VS = 5 V (table header) 5
CMRR (RTI of input pins) CMRR 75 dB RTI of input pins; G = +0.1 to +100 5
CMRR at 500 Hz CMRR 75 dB 500 Hz 5
Minimum CMRR Over Temperature CMRR 70 dB −40°C to +85°C 5
CMRR vs. Temperature CMRR 1 4 (μV/V)/°C VS = 5 V (table header) 5
PSRR (RTI) PSRR 77 94 dB VS = 4.5 V to 10 V 5
Input Voltage Range, Common Mode -12 17 V VS = 5 V, VREF = 2.5 V (table conditions) 5
Input Voltage Range, Differential -15 15 V VS = 5 V (table header) 5
Differential Amplifier Gain Error -0.1 0.01 0.1 % VS = 5 V (table header) 5
Differential Amplifier Nonlinearity vs. Temperature 3 10 ppm VS = 5 V (table header) 5
Differential Amplifier Offset Voltage (RTI of input pins) -2.5 2.5 mV RTI of input pins 5
Differential Amplifier CMRR (RTI of input pins) CMRR 75 dB RTI of input pins; G = +0.1 to +100 5
Differential Amplifier CMRR at 500 Hz CMRR 75 dB 500 Hz 5
Differential Amplifier Minimum CMRR Over Temperature CMRR 70 dB −40°C to +85°C 5
Differential Amplifier CMRR vs. Temperature CMRR 1 4 (μV/V)/°C VS = 5 V (table header) 5
Output Resistance Error -0.1 0.1 % VS = 5 V (table header) 5
Output Amplifier Offset Voltage (RTI of output amp) -0.15 0.15 mV RTI of output amp 5
Output Voltage Swing 0.9 4.1 V RL = 10 kΩ 5
Output Voltage Swing 1 4 V RL = 2 kΩ 5
Bias Current 1.5 3 nA VS = 5 V (table header) 5
Offset Current 0.2 0.5 nA VS = 5 V (table header) 5
Operating Range (single supply) 2.25 36 V Printed as ±2.25 to +36 V 6
Operating Temperature Range -40 85 °C 6
Supply Voltage -18 18 V Printed as ±18 V 7
Input Voltage (Common Mode) -120 120 V Footnote: with ±12 V supplies or higher, see Input Voltage Range section 7
Differential Input Voltage -120 120 V Footnote: with ±12 V supplies or higher, see Input Voltage Range section 7
Storage Temperature Range -65 125 °C 7
Operating Temperature Range -40 85 °C 7
Lead Temperature 300 °C Soldering, 10 sec 7
Thermal Resistance, Junction-to-Ambient (SOIC) θJA 154 °C/W JEDEC 4-layer board 7

CAD (KiCad official)

  • Symbol: AD628ARZ-R7
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ad628arz-r7-etched.step / ad628arz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad628arz-r7.step / ad628arz-r7.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (20 pp, sha256 1269e809fe2f01cd, 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