component
ADL5304ACPZ-R7
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Analog Devices Special Purpose Amplifiers, LFCSP-32(5x5). 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
markdownADL5304ACPZ-R7
Analog Devices · Special Purpose Amplifiers · LFCSP-32(5x5)
ADL5304ACPZ-R7 from Analog Devices, in a LFCSP-32(5x5). 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 | NC | unconnected | No connect; do not connect to this pin. |
| 2 | VSM1 | input | Guard voltage for INUM and IDEN inputs; connect to 1P5V for single supply operation. |
| 3 | VSM2 | input | Guard voltage for INUM and IDEN inputs; provides shield drive for low leakage in input stage. |
| 4 | INUM | input | Numerator current input for photodiode or external current source; range 1 pA to 10 mA. |
| 5 | IDEN | input | Denominator current input; connect to IREF pin for logarithmic ratio operation. |
| 6 | IREF | power_out | 100 nA trimmed reference current output; source current for IDEN denominator reference. |
| 7 | VSM3 | input | Guard voltage for INUM and IDEN inputs; provides low leakage shield biasing. |
| 8 | VSM4 | input | Guard voltage for INUM and IDEN inputs; connect to 1P5V for single supply operation. |
| 9 | VDEN | output | Denominator log amplifier voltage output; connect to INDN pin and decouple with 0.1 µF capacitor to ground. |
| 10 | INDN | input | Temperature compensation circuit denominator voltage input connected from VDEN output. |
| 11 | COMM | power_in | Main ground pin for circuit return. |
| 12 | NMFS | input | Numerator slew rate bias; connect through nominal 1 kΩ resistor to VNEG pin. |
| 13 | VNEG | power_in | Negative power supply; 0 V for single supply or −2 V to −5 V for dual supply operation. |
| 14 | DNFS | input | Denominator slew rate bias; connect through nominal 1 kΩ resistor to VNEG pin. |
| 15 | ACOM | power_in | Analog common ground, low noise reference ground; both ACOM pins (15 and 18) must be grounded. |
| 16 | HFCP | input | High frequency compensation pin for loop stability; decouple to ground as required. |
| 17 | 2VLT | power_out | 2.0 V reference voltage output; source current up to 20 mA for photodiode biasing. |
| 18 | ACOM | power_in | Analog common ground, low noise reference ground; both ACOM pins (15 and 18) must be grounded. |
| 19 | SCL3 | input | 7.5 kΩ trimming resistor for slope adjustment (see Figure 1); default no connect for standard 0.2 V/decade slope. |
| 20 | SCL2 | input | 5 kΩ trimming resistor for slope adjustment (see Figure 1); default connects to INMS for 0.2 V/decade slope. |
| 21 | SCL1 | input | 5 kΩ trimming resistor for slope adjustment (see Figure 1); default connects to VLOG for 0.2 V/decade slope. |
| 22 | VLOG | output | Main logarithmic output voltage; 0.5 V to 2.5 V for nominal 1 pA to 10 mA input current range. |
| 23 | INMS | input | Inverting input of output buffer amplifier; default connects to SCL2 pin. |
| 24 | INPS | input | Non-inverting input of output buffer amplifier; connect to 1P5V for single supply; must connect with DCBI and VSM1−VSM4. |
| 25 | NC | unconnected | No connect; do not connect to this pin. |
| 26 | 1P5V | power_out | 1.5 V reference voltage output; source current ≤5 mA, sink current ≤10 mA; bias VSMx, DCBI, and INPS for single supply. |
| 27 | DCBI | input | Approximately 1.3 mA bias current output; connect to VSM1 through VSM4 pins. |
| 28 | BSDC | input | Internal bias node; decouple to ground with series combination of 4 Ω resistor and 1 µF capacitor. |
| 29 | VPOS | power_in | Positive power supply; 4.5 V to 5.5 V nominal 5 V for single supply or up to ±5 V for dual supply. |
| 30 | IMON | output | Photodiode monitor current output; IMON = 1.1 × INUM for adaptive PD bias; maximum 11.5 mA. |
| 31 | INNM | input | Temperature compensation circuit numerator voltage input connected from VNUM output. |
| 32 | VNUM | output | Numerator log amplifier voltage output; connect to INNM pin without external capacitor for fastest response. |
| 33 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | LFCSP-32(5x5) |
| Category | Amplifiers/Comparators |
| Pins | 33 |
CAD (KiCad official)
- Symbol:
ADL5304ACPZ-R7 - Footprint:
Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm - 3D model: LFCSP-32(5x5) (KiCad packages3D, STEP)
- 3D model files:
adl5304acpz-r7-etched.step/adl5304acpz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adl5304acpz-r7.step/adl5304acpz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (32 pp, sha256
41768c182abfb976, 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).