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ADA4945-1ACPZ-R2

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Analog Devices Differential Amplifiers, LFCSP-16(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADA4945-1ACPZ-R2

Analog Devices · Differential Amplifiers · LFCSP-16(3x3)

ADA4945-1ACPZ-R2 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 -FB output Negative output for feedback component connection.
2 +IN input Positive input summing node.
3 -IN input Negative input summing node.
4 +FB output Positive output for feedback component connection.
5 MODE input Selects between full power mode and low power mode.
6 +VS power_in Positive supply voltage.
7 +VS power_in Positive supply voltage.
8 +VCLAMP input Positive clamp level for the adjustable output clamps.
9 VOCM input Output common-mode voltage setting.
10 +OUT output Positive output for load connection.
11 -OUT output Negative output for load connection.
12 DISABLE input Disable pin.
13 -VCLAMP input Negative clamp level for the adjustable output clamps.
14 -VS power_in Negative supply voltage.
15 -VS power_in Negative supply voltage.
16 DGND power_in Digital ground level.
17 EPAD 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/Comparators
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
Supply Voltage (operating range) 3 10 V 6
Operating Temperature Range -40 125 °C 6
Supply Voltage 11 V 15
Differential Input Voltage -1 1 V 15
Storage Temperature Range -65 150 °C 15
Lead Temperature (Soldering, 10 sec) 300 °C Soldering, 10 sec 15
Junction Temperature 150 °C 15
Electrostatic Discharge, FICDM 1250 V Field Induced Charged Device Model 15
Electrostatic Discharge, HBM 4000 V Human Body Model 15
Input Offset Voltage [full power, VS=10 V] -50 10 50 µV 25°C 4
Input Offset Voltage [full power, VS=10 V] -80 15 80 µV TA = 20°C to 85°C 4
Input Offset Voltage [full power, VS=10 V] -115 30 115 µV TA = −40°C to +125°C 4
Input Offset Voltage Drift [full power, VS=10 V] -0.5 0.1 0.5 µV/°C TA = 20°C to 85°C 4
Input Offset Voltage Drift [full power, VS=10 V] -1 0.2 1 µV/°C TA = −40°C to +125°C 4
Input Bias Current [full power, VS=10 V] -1.2 -2.5 µA TA = 25°C 4
Input Bias Current [full power, VS=10 V] -1.5 -3 µA TA = 20°C to 85°C 4
Input Bias Current [full power, VS=10 V] -1.8 -3.4 µA TA = −40°C to +125°C 4
Input Bias Current Drift [full power, VS=10 V] -10 -50 nA/°C TA = 20°C to 85°C 4
Input Offset Current [full power, VS=10 V] -200 20 200 nA TA = 25°C 4
Input Offset Current [full power, VS=10 V] -250 25 250 nA TA = 20°C to 85°C 4
Input Offset Current [full power, VS=10 V] -300 40 300 nA TA = −40°C to +125°C 4
Input Offset Current Drift [full power, VS=10 V] -0.6 0.1 0.6 nA/°C TA = 20°C to 85°C 4
Input Offset Current Drift [full power, VS=10 V] -0.7 0.12 0.7 nA/°C TA = −40°C to +125°C 4
Input Offset Voltage [low power, VS=10 V] -50 10 50 µV 25°C 4
Input Offset Voltage [low power, VS=10 V] -80 15 80 µV TA = 20°C to 85°C 4
Input Offset Voltage [low power, VS=10 V] -115 30 115 µV TA = −40°C to +125°C 4
Input Offset Voltage Drift [low power, VS=10 V] -0.5 0.1 0.5 µV/°C TA = 20°C to 85°C 4
Input Offset Voltage Drift [low power, VS=10 V] -1 0.2 1 µV/°C TA = −40°C to +125°C 4
Input Bias Current [low power, VS=10 V] -0.5 -0.8 µA TA = 25°C 4
Input Bias Current [low power, VS=10 V] -0.6 -1 µA TA = 20°C to 85°C 4
Input Bias Current [low power, VS=10 V] -0.7 -1.2 µA TA = −40°C to +125°C 4
Input Bias Current Drift [low power, VS=10 V] -10 -50 nA/°C TA = 20°C to 85°C 4
Input Offset Current [low power, VS=10 V] -130 10 130 nA TA = 25°C 4
Input Offset Current [low power, VS=10 V] -150 20 150 nA TA = 20°C to 85°C 4
Input Offset Current [low power, VS=10 V] -200 25 200 nA TA = −40°C to +125°C 4
Input Offset Current Drift [low power, VS=10 V] -0.38 0.06 0.38 nA/°C TA = 20°C to 85°C 4
Input Offset Current Drift [low power, VS=10 V] -0.4 0.07 0.4 nA/°C TA = −40°C to +125°C 4
VOCM Common-Mode Offset Voltage [full power, VS=10 V] VOS, cm -60 5 60 mV 25°C; VOS, cm = VOUT, cm − VOCM, VIP = VIN = VOCM = 0 V 5
VOCM Common-Mode Offset Voltage [full power, VS=10 V] VOS, cm -10 10 mV TA = 20°C to 85°C 5
VOCM Common-Mode Offset Voltage [full power, VS=10 V] VOS, cm -20 20 mV TA = −40°C to +125°C 5
VOCM Offset Voltage Drift [full power, VS=10 V] -5 5 µV/°C TA = 20°C to 85°C 5
VOCM Offset Voltage Drift [full power, VS=10 V] -10 10 µV/°C TA = −40°C to +125°C 5
VOCM Input Bias Current [full power, VS=10 V] -220 µA TA = 25°C 5
VOCM Input Bias Current [full power, VS=10 V] -300 µA TA = 20°C to 85°C 5
VOCM Input Bias Current [full power, VS=10 V] -350 µA TA = −40°C to +125°C 5
VOCM Input Bias Current Drift [full power, VS=10 V] -1.3 µA/°C TA = 20°C to 85°C 5
VOCM Input Bias Current Drift [full power, VS=10 V] -1.5 µA/°C TA = −40°C to +125°C 5
VOCM to Common-Mode Output Gain [full power, VS=10 V] ΔVOUT, cm/ΔVOCM 0.99 1 1.01 V/V ΔVOCM = ±1 V 5
Quiescent Current, enabled [full power mode, VS=10 V] IS 4 4.2 mA Full power mode, MODE = +VS 6
Quiescent Current, enabled [low power mode, VS=10 V] IS 1.4 1.6 mA Low power mode, MODE = −VS 6
Quiescent Current, disabled [full power mode, VS=10 V] IS 60 70 µA Full power mode, MODE = +VS 6
Quiescent Current, disabled [low power mode, VS=10 V] IS 60 70 µA Low power mode, MODE = −VS 6
Thermal Resistance, junction to ambient (CP-16-22) θJA 70 °C/W Natural convection, one cubic foot sealed enclosure 15
Thermal Resistance, junction to case (CP-16-22) θJC 15 °C/W Junction to case 15

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
housing Abs Human Body Model (HBM) 4000 V Stresses at or above those listed under Absolute Maximum 15

CAD (KiCad official)

  • Symbol: ADA4945-1ACPZ-R2
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: LFCSP-16(3x3) (KiCad packages3D, STEP)
  • 3D model files: ada4945-1acpz-r2-etched.step / ada4945-1acpz-r2-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ada4945-1acpz-r2.step / ada4945-1acpz-r2.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (44 pp, sha256 f6dd120e84f9a820, retrieved 2026-10-19, 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