component
ADA4938-2ACPZ-R7
Public Made by Adomby adom
Analog Devices Differential OpAmps, LFCSP-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 3d ago |
| viewers | 3d ago |
| ada4938-2acpz-r7-etched.glb | 3d ago |
| ada4938-2acpz-r7-etched.step | 3d ago |
| ada4938-2acpz-r7-hero.glb | 3d ago |
| ada4938-2acpz-r7-hero.overlay.json | 3d ago |
| ada4938-2acpz-r7.glb | 3d ago |
| ada4938-2acpz-r7.kicad_mod | 3d ago |
| ada4938-2acpz-r7.kicad_sym | 3d ago |
| ada4938-2acpz-r7.lbr | 3d ago |
| ada4938-2acpz-r7.step | 3d ago |
| package.json | 3d ago |
| page.json | 3d ago |
| README.md | 3d ago |
| verification.json | 3d ago |
ADA4938-2ACPZ-R7
Analog Devices · Differential OpAmps · LFCSP-24(4x4)
ADA4938-2ACPZ-R7 from Analog Devices, in a LFCSP-24(4x4). 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 | -IN1 | input | Negative input summing node 1 of the amplifier, which sets the closed-loop gain with the external feedback resistor network. |
| 2 | +FB1 | input | Positive output feedback pin 1 of the first amplifier, connected to the external feedback network. |
| 3 | +VS1 | power_in | Positive supply voltage 1 for amplifier 1; the datasheet specifies a wide supply range of +5 V to ±5 V with a 12 V absolute maximum supply. |
| 4 | +VS1 | power_in | Positive supply voltage 1 for amplifier 1; the datasheet specifies a wide supply range of +5 V to ±5 V with a 12 V absolute maximum supply. |
| 5 | -FB2 | input | Negative output feedback pin 2 of the second amplifier, connected to the external feedback network. |
| 6 | +IN2 | input | Positive input summing node 2 of the second amplifier, which sets the closed-loop gain with the external feedback resistor network. |
| 7 | -IN2 | input | Negative input summing node 2 of the second amplifier, which sets the closed-loop gain with the external feedback resistor network. |
| 8 | +FB2 | input | Positive output feedback pin 2 of the second amplifier, connected to the external feedback network. |
| 9 | +VS2 | power_in | Positive supply voltage 2 for amplifier 2; the datasheet specifies a wide supply range of +5 V to ±5 V with a 12 V absolute maximum supply. |
| 10 | +VS2 | power_in | Positive supply voltage 2 for amplifier 2; the datasheet specifies a wide supply range of +5 V to ±5 V with a 12 V absolute maximum supply. |
| 11 | VOCM2 | input | Output common-mode voltage 2 input, which sets the common-mode level of the amplifier 2 differential output. |
| 12 | +OUT2 | output | Positive output 2 for load connection of amplifier 2. |
| 13 | -OUT2 | output | Negative output 2 for load connection of amplifier 2. |
| 14 | PD2 | input | Power-down pin 2 for amplifier 2. |
| 15 | -VS2 | power_in | Negative supply voltage 2 for amplifier 2. |
| 16 | -VS2 | power_in | Negative supply voltage 2 for amplifier 2. |
| 17 | VOCM1 | input | Output common-mode voltage 1 input, which sets the common-mode level of the amplifier 1 differential output. |
| 18 | +OUT1 | output | Positive output 1 for load connection of amplifier 1. |
| 19 | -OUT1 | output | Negative output 1 for load connection of amplifier 1. |
| 20 | PD1 | input | Power-down pin 1 for amplifier 1. |
| 21 | -VS1 | power_in | Negative supply voltage 1 for amplifier 1. |
| 22 | -VS1 | power_in | Negative supply voltage 1 for amplifier 1. |
| 23 | -FB1 | input | Negative output feedback pin 1 of the first amplifier, connected to the external feedback network. |
| 24 | +IN1 | input | Positive input summing node 1 of the first amplifier, which sets the closed-loop gain with the external feedback resistor network. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | LFCSP-24(4x4) |
| Category | Amplifiers |
| Pins | 25 |
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 | 12 | V | 7 | ||||
| Storage Temperature Range | -65 | 125 | °C | 7 | |||
| Operating Temperature Range | -40 | 85 | °C | 7 | |||
| Lead Temperature | 300 | °C | Soldering, 10 sec | 7 | |||
| Junction Temperature | 150 | °C | 7 | ||||
| Operating Range | 4.5 | 11 | V | 4 | |||
| OPERATING TEMPERATURE RANGE | -40 | 85 | °C | 4 | |||
| Gain | 0.95 | 1 | 1.05 | V/V | ∆VOUT, cm/∆VOCM; ∆VOCM = ±1 V | 4 | |
| Offset Voltage | 1 | 4 | mV | VOS, dm = VOUT, dm/2; VDIN+ = VDIN− = 0 V | 3 | ||
| Input Bias Current | -18 | -13 | µA | 3 | |||
| TMIN to TMAX variation | -4 | 4 | µV/°C | 3 | |||
| Linear Output Current | -75 | 75 | mA | Per amplifier, RL, dm = 20 Ω, f = 10 MHz | 3 | ||
| Quiescent Current | 37 | 40 | mA | Per amplifier | 4 | ||
| Powered down current | 2 | 3 | mA | Powered down | 4 | ||
| PD Input Voltage | 2.5 | V | Powered down | 4 | |||
| PD Input Voltage | 3 | V | Enabled | 4 | |||
| PD Bias Current | 1 | µA | Enabled PD = 5 V | 4 | |||
| PD Bias Current | -760 | µA | Disabled PD = −5 V | 4 | |||
| Offset Voltage | 1 | 4 | mV | VOS, dm = VOUT, dm/2; VDIN+ = VDIN− = VOCM = 2.5 V | 5 | ||
| Input Bias Current | -18 | -13 | µA | 5 | |||
| Linear Output Current | -65 | 65 | mA | Per amplifier, RL, dm = 20 Ω, f = 10 MHz | 5 | ||
| Input Offset Voltage | 3 | mV | VOS, cm = VOUT, cm; VDIN+ = VDIN- = VOCM = 2.5 V | 6 | |||
| Quiescent Current | 34 | 36.5 | mA | 6 | |||
| Powered down current | 1 | 1.7 | mA | Powered down | 6 | ||
| PD Bias Current | -260 | µA | Disabled PD = 0 V | 6 | |||
| -3 dB Small Signal Bandwidth | 1000 | MHz | VOUT = 0.1 V p-p | 3 | |||
| Slew Rate | 4700 | V/µs | VOUT = 2 V p-p | 3 | |||
| Settling Time | 6.5 | ns | VOUT = 2 V p-p | 3 | |||
| Overdrive Recovery Time | 4 | ns | VIN = 5 V to 0 V step, G = +2 | 3 | |||
| Second Harmonic | -106 | dBc | VOUT = 2 V p-p, 10 MHz | 3 | |||
| Third Harmonic | -109 | dBc | VOUT = 2 V p-p, 10 MHz | 3 | |||
| Input Voltage Noise | 2.6 | nV/√Hz | f = 10 MHz | 3 | |||
| Input Current Noise | 4.8 | pA/√Hz | f = 10 MHz | 3 | |||
| Crosstalk (ADA4938-2) | -85 | dB | f = 100 MHz | 3 | |||
| Input Resistance Differential | 6 | MΩ | 3 | ||||
| Input Resistance Common mode | 3 | MΩ | 3 | ||||
| Input Capacitance | 1 | pF | 3 | ||||
| CMRR | -75 | dB | ∆VOUT, dm/∆VIN, cm; ∆VIN, cm = ±1 V, f = 1 MHz | 3 | |||
| Output Balance Error | -60 | dB | ∆VOUT, cm/∆VOUT, dm; ∆VOUT, dm = 1 V; f = 10 MHz | 3 | |||
| -3 dB Bandwidth | 230 | MHz | 4 | ||||
| Input Resistance | 10 | kΩ | 4 | ||||
| Power Supply Rejection Ratio | -80 | dB | ∆VOUT, dm/∆VS; ∆VS = ±1 V | 4 | |||
| Turn-Off Time | 1 | µs | 4 | ||||
| Turn-On Time | 200 | ns | 4 | ||||
| Thermal Resistance θJA, 24-Lead LFCSP (Exposed Pad) | θJA | 65 | °C/W | Soldered to 4-layer JEDEC board | 7 |
CAD (KiCad official)
- Symbol:
ADA4938-2ACPZ-R7 - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm - 3D model: LFCSP-24(4x4) (KiCad packages3D, STEP)
- 3D model files:
ada4938-2acpz-r7-etched.step/ada4938-2acpz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ada4938-2acpz-r7.step/ada4938-2acpz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (26 pp, sha256
4aac21d38044c837, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).