component
AD8232ACPZ-RL
Public Made by Adomby adom
Analog Devices Analog Front End (AFE), LFCSP-20(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAD8232ACPZ-RL
Analog Devices · Analog Front End (AFE) · LFCSP-20(4x4)
AD8232ACPZ-RL from Analog Devices, in a LFCSP-20(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | HPDRIVE | output | High-pass drive output connected to the first high-pass filter capacitor to maintain HPSENSE at reference voltage level. |
| 2 | +IN | input | Instrumentation amplifier positive input typically connected to the left arm (LA) electrode. |
| 3 | −IN | input | Instrumentation amplifier negative input typically connected to the right arm (RA) electrode. |
| 4 | RLDFB | input | Right leg drive feedback input for the right leg drive circuit with integrator capacitor connection. |
| 5 | RLD | output | Right leg drive output for connection to the driven electrode with current limited to less than 10 μA. |
| 6 | SW | output | Fast recovery switch output connected to the second high-pass filter output for rapid recovery when electrode connects. |
| 7 | OPAMP+ | input | Op-amp non-inverting input for analog filtering and gain configuration. |
| 8 | REFOUT | output | Reference voltage buffer output serving as virtual ground for all circuit reference points. |
| 9 | OPAMP− | input | Op-amp inverting input for analog filtering and gain configuration. |
| 10 | OUT | output | Op-amp output providing fully conditioned ECG signal suitable for ADC input connection. |
| 11 | LOD− | output | Lead-off detector output high when −IN electrode disconnects in DC mode; always low in AC mode. |
| 12 | LOD+ | output | Lead-off detector output high when +IN electrode disconnects in DC mode or any electrode disconnects in AC mode. |
| 13 | SDN | input | Shutdown control input; drive low to enter low-power shutdown mode with current less than 200 nA. |
| 14 | AC/DC | input | Lead-off detection mode control input; low for DC mode, high for AC mode selection. |
| 15 | FR | input | Fast recovery control input; drive high to enable fast recovery mode for accelerated filter settling. |
| 16 | GND | power_in | Power ground connection referenced for all signal measurements. |
| 17 | +VS | power_in | Power supply pin with operating range 2.0 V to 3.5 V and quiescent current 170 µA typical. |
| 18 | REFIN | input | Reference voltage buffer high-impedance input for setting the virtual ground voltage level. |
| 19 | IAOUT | output | Instrumentation amplifier output with 100 V/V gain and DC blocking capability up to ±300 mV. |
| 20 | HPSENSE | input | High-pass detection input connected to RC junction that sets DC blocking circuit cutoff frequency. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | LFCSP-20(4x4) |
| Category | Data Acquisition |
| Pins | 21 |
CAD (KiCad official)
- Symbol:
AD8232ACPZ-RL - Footprint:
Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm - 3D model: LFCSP-20(4x4) (KiCad packages3D, STEP)
- 3D model files:
ad8232acpz-rl-etched.step/ad8232acpz-rl-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad8232acpz-rl.step/ad8232acpz-rl.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
a175b6ab6c41a2d2, retrieved 2026-09-21, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).