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AD8138ARZ

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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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AD8138ARZ

Analog Devices · Differential Amplifiers · SOIC-8

AD8138ARZ 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 Negative input summing node of the amplifier.
2 VOCM input Voltage applied to this pin sets the common-mode output voltage with a ratio of 1:1, for example 1 V dc on VOCM sets the dc bias on +OUT and -OUT to 1 V.
3 V+ power_in Positive supply voltage.
4 +OUT output Positive output; the voltage at -DIN is inverted at +OUT (see Figure 42).
5 -OUT output Negative output; the voltage at +DIN is inverted at -OUT (see Figure 42).
6 V- power_in Negative supply voltage.
7 NC unconnected No connect pin, listed as NC with no function given in the datasheet.
8 +IN input Positive input summing node of the amplifier.

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
Supply Voltage -5.5 5.5 V 8
Internal Power Dissipation 550 mW 8
Storage Temperature Range -65 150 °C 8
Lead Temperature 300 °C Soldering 10 sec 8
Junction Temperature 150 °C 8
Operating Temperature Range -40 85 °C 8
Thermal Resistance junction-to-ambient θJA 121 °C/W 8-Lead SOIC, 4-layer JEDEC board, still air 8
Offset Voltage VOS -2.5 1 2.5 mV VS = ±5 V, VOCM = 0, G = +1, RL,dm = 500 Ω; VOS,dm = VOUT,dm/2; VDIN+ = VDIN− = VOCM = 0 V 4
Offset Voltage TMIN to TMAX variation -4 4 µV/°C VS = ±5 V, TMIN to TMAX variation 4
Input Common-Mode Voltage -4.7 3.4 V VS = ±5 V 4
Input Voltage Range (VOCM) -3.8 3.8 V VS = ±5 V, VOCM to ±OUT 5
Input Offset Voltage (VOCM) VOS,cm -3.5 1 3.5 mV VS = ±5 V; VOS,cm = VOUT,cm; VDIN+ = VDIN- = VOCM = 0 V 5
VOCM Gain 0.9955 1 1.0045 V/V VS = ±5 V; ∆VOUT,cm/∆VOCM; ∆VOCM = ±1 V 5
Operating Range 1.4 5.5 V Supply voltage ±VS 5
Quiescent Current IS 18 20 23 mA VS = ±5 V, VOCM = 0 5
Operating Temperature Range -40 85 °C 5
Offset Voltage VOS -2.5 1 2.5 mV VS = 5 V, VOCM = 2.5 V; VOS,dm = VOUT,dm/2; VDIN+ = VDIN- = VOCM = 0 V 6
Input Common-Mode Voltage -0.3 3.2 V VS = 5 V, VOCM = 2.5 V 6
Input Voltage Range (VOCM) 1 3.8 V VS = 5 V, VOCM = 2.5 V 7
Input Offset Voltage (VOCM) VOS,cm -5 1 5 mV VS = 5 V, VOCM = 2.5 V; VOS,cm = VOUT,cm; VDIN+ = VDIN- = VOCM = 0 V 7
VOCM Gain 0.9968 1 1.0032 V/V VS = 5 V; ∆VOUT,cm/∆VOCM; ∆VOCM = 2.5 V ±1 V 7
Operating Range 2.7 11 V Single supply VS 7
Quiescent Current IS 15 20 21 mA VS = 5 V, VOCM = 2.5 V 7

CAD (KiCad official)

  • Symbol: AD8138ARZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ad8138arz-etched.step / ad8138arz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8138arz.step / ad8138arz.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (25 pp, sha256 e7544414c4360c80, 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