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AD8643ACPZ-REEL7

Analog Devices · FET InputAmplifiers · LFCSP-16(3x3)

AD8643ACPZ-REEL7 from Analog Devices, in a LFCSP-16(3x3). 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 A input Inverting input of amplifier A, a JFET input with 1 pA max bias current.
2 +IN A input Non-inverting input of amplifier A, a JFET input with 1 pA max bias current.
3 V+ power_in Positive supply; single-supply 5 V to 26 V (27.3 V absolute max total supply), and the exposed pad should be connected to V+.
4 +IN B input Non-inverting input of amplifier B, a JFET input with 1 pA max bias current.
5 -IN B input Inverting input of amplifier B, a JFET input with 1 pA max bias current.
6 OUT B output Rail-to-rail output of amplifier B, stable with capacitive loads of more than 500 pF.
7 OUT C output Rail-to-rail output of amplifier C, stable with capacitive loads of more than 500 pF.
8 -IN C input Inverting input of amplifier C, a JFET input with 1 pA max bias current.
9 +IN C input Non-inverting input of amplifier C, a JFET input with 1 pA max bias current.
10 V- power_in Negative supply or ground; dual-supply operation is ±2.5 V to ±13 V.
11 +IN D input Non-inverting input of amplifier D, a JFET input with 1 pA max bias current.
12 -IN D input Inverting input of amplifier D, a JFET input with 1 pA max bias current.
13 NIC unconnected No internal connection.
14 OUT D output Rail-to-rail output of amplifier D, stable with capacitive loads of more than 500 pF.
15 OUT A output Rail-to-rail output of amplifier A, stable with capacitive loads of more than 500 pF.
16 NIC unconnected No internal connection.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Analog Devices
Package LFCSP-16(3x3)
Category Amplifiers
Pins 17

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 VOS 50 750 µV 3
Offset Voltage (LFCSP only) VOS 1 mV AD8643 LFCSP only 3
Offset Voltage VOS 1.5 mV −40°C < TA < +85°C 3
Offset Voltage VOS 1.6 mV +85°C < TA < +125°C, VCM = 1.5 V 3
Input Bias Current IB 0.25 1 pA 3
Input Bias Current IB 180 pA −40°C < TA < +125°C 3
Input Offset Current IOS 60 pA −40°C < TA < +125°C 3
Input Voltage Range 0 3 V 3
Common-Mode Rejection Ratio CMRR 74 93 dB VCM = 0 V to 2.5 V 3
Large Signal Voltage Gain AVO 80 140 V/mV RL = 10 kΩ, VO = 0.5 to 4.5 V 3
Output Voltage High VOH 4.95 V 3
Output Voltage High VOH 4.94 V IL = 1 mA, −40°C to +125°C 3
Output Voltage Low VOL 0.05 V 3
Output Voltage Low VOL 0.01 0.05 V IL = 1 mA, −40°C to +125°C 3
Output Current IOUT -6 6 mA 3
Power Supply Rejection Ratio PSRR 90 107 dB VS = 5 V to 26 V 3
Supply Current/Amplifier ISY 195 250 µA 3
Supply Current/Amplifier ISY 270 µA −40°C < TA < +125°C 3
Offset Voltage VOS 70 750 µV 4
Offset Voltage (LFCSP only) VOS 1 mV AD8643 LFCSP only 4
Offset Voltage VOS 1.5 mV −40°C < TA < +125°C 4
Input Bias Current IB 0.25 1 pA 4
Input Bias Current IB 260 pA −40°C < TA < +125°C 4
Input Offset Current IOS 65 pA −40°C < TA < +125°C 4
Input Voltage Range -13 10 V 4
Common-Mode Rejection Ratio CMRR 90 107 dB VCM = −13 V to +10 V 4
Large Signal Voltage Gain AVO 215 290 V/mV RL = 10 kΩ, VO = −11 V to +11 V 4
Output Voltage High VOH 12.95 V 4
Output Voltage High VOH 12.94 V IL = 1 mA, −40°C to +125°C 4
Output Voltage Low VOL -12.95 V 4
Output Voltage Low VOL -12.94 V IL = 1 mA, −40°C to +125°C 4
Output Current IOUT -12 12 mA 4
Power Supply Rejection Ratio PSRR 90 107 dB VS = ±2.5 V to ±13 V 4
Supply Current/Amplifier ISY 200 290 µA 4
Supply Current/Amplifier ISY 330 µA −40°C < TA < +125°C 4
Supply Voltage 27.3 V 5
Operating Temperature Range -40 125 °C 5
Storage Temperature Range -65 150 °C KS-5, R-8, RM-8, R-14, CP-16 Packages 5
Junction Temperature Range -65 150 °C KS-5, R-8, RM-8, R-14, CP-16 Packages 5
Lead Temperature (Soldering) 300 °C 60 sec 5
Thermal Resistance Junction-to-Ambient θJA 81 °C/W 16-Lead LFCSP (CP), standard 4-layer board 5
Thermal Resistance Junction-to-Case θJC 16 °C/W 16-Lead LFCSP (CP) 5

CAD (KiCad official)

  • Symbol: AD8643ACPZ-REEL7
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: LFCSP-16(3x3) (KiCad packages3D, STEP)
  • 3D model files: ad8643acpz-reel7-etched.step / ad8643acpz-reel7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad8643acpz-reel7.step / ad8643acpz-reel7.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (15 pp, sha256 12a38e9dd4050a18, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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