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AD7091R-5BCPZ

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Analog Devices Analog To Digital Converters (ADCs), LFCSP-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentadc-dac-data conversionad7091r-5bcpzfactory-2.0.0extractor-text

Verified AD7091R-5BCPZ

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 21 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AD7091R-5BCPZ · LFCSP-20(4x4) · 21 pins
  • ✓copper: 21 copper pads, none touching another net
  • ✓datasheet: all 21 pin names found in the 34-page datasheet
  • ✓distributor: lcsc C650568, digikey AD7091R-5BCPZ-ND, mouser 584-AD7091R-5BCPZ
  • ✓family: QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-4y0vh9b0/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height within the datasheet's package drawing (datasheet p.34)
  • ✓pads: 21 pins = 21 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 21 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ad7091r-5bcpz.kicad_sym✓ ad7091r-5bcpz.kicad_mod✓ ad7091r-5bcpz.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3d ago
viewers ad7091r-5bcpz: viewers · Ray 3d ago
ad7091r-5bcpz-etched.glb Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz-etched.step ad7091r-5bcpz: factory component page (tier=mfr) · Ray 3d ago
ad7091r-5bcpz-hero.glb ad7091r-5bcpz: hero GLB from the etched model (keeps the MPN mark) · Ray 3d ago
ad7091r-5bcpz-hero.overlay.json Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz.glb Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz.kicad_mod Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz.kicad_sym Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz.lbr Publish 0.1.0 · Ray 3d ago
ad7091r-5bcpz.step Publish 0.1.0 · Ray 3d ago
package.json Publish 0.1.0 · Ray 3d ago
page.json Set visibility: public · Ray 3d ago
README.md Publish 0.1.0 · Ray 3d ago
verification.json Verified: Published by the parts factory: tier mfr, 21 pins · Ray 3d ago

AD7091R-5BCPZ

Analog Devices · Analog To Digital Converters (ADCs) · LFCSP-20(4x4)

AD7091R-5BCPZ from Analog Devices, in a LFCSP-20(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 VDD power_in Power supply input with a range of 2.7 V to 5.25 V; decouple to GND.
2 REGCAP passive Decoupling pin for the internal regulator output; decouple separately to GND with a 2.2 µF capacitor.
3 REFIN/REFOUT bidirectional 2.5 V internal reference output or external reference input (1.0 V to VDD); decouple to GND, typically with 2.2 µF.
4 GND power_in Chip ground pin, ground reference for all circuitry on the device.
5 MUXOUT output Multiplexer output; tie directly to ADCIN if no external filtering or buffering is required, otherwise via a conditioning network.
6 VIN0 input Single-ended analog input for Channel 0 with an input range of 0 V to VREF.
7 VIN2 input Single-ended analog input for Channel 2 with an input range of 0 V to VREF.
8 ALERT/BUSY/GPO0 output Configuration-register selected open-drain output for ALERT (conversion result outside limits), BUSY (conversion in progress) or general-purpose output 0; needs external pull-up to VDRIVE.
9 GPO2 output General-purpose digital output 2.
10 VIN3 input Single-ended analog input for Channel 3 with an input range of 0 V to VREF.
11 VIN1 input Single-ended analog input for Channel 1 with an input range of 0 V to VREF.
12 ADCIN input Direct ADC input; tie directly to MUXOUT if no external filtering or buffering is required, otherwise connect to the conditioning network.
13 GND power_in Chip ground pin, ground reference for all circuitry on the device.
14 AS1 input I2C address bit 1; together with AS0 selects the device I2C address.
15 SDA bidirectional Serial data input/output, open-drain output that requires a pull-up resistor.
16 SCL input I2C serial clock input requiring a pull-up resistor, compatible with 100 kHz standard and 400 kHz fast modes.
17 CONVST/GPO1 bidirectional Edge-triggered convert start input (falling edge initiates a conversion) or, in command or autocycle mode, general-purpose digital output 1.
18 VDRIVE power_in Logic power supply input of 1.8 V to 5.25 V setting the interface voltage, must not exceed VDD by more than 0.3 V; decouple with 10 µF and 0.1 µF to GND.
19 AS0 input I2C address bit 0; together with AS1 selects the device I2C address.
20 RESET input Logic input that resets the device when pulled low.
21 EPAD passive Exposed pad, not connected internally; recommended to be soldered to GND.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package LFCSP-20(4x4)
Category ADC/DAC/Data Conversion
Pins 21

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Integral Nonlinearity INL -1.25 0.8 1.25 LSB 3
Differential Nonlinearity DNL -0.9 0.3 0.9 LSB Guaranteed no missing codes to 12 bits 3
Offset Error -1.5 0.3 1.5 mV TA = 25°C 3
Offset Error Matching -1.5 0.3 1.5 mV TA = 25°C 3
Gain Error -0.1 0 0.1 % FS TA = 25°C 3
Gain Error Matching -0.1 0 0.1 % FS TA = 25°C 3
DC Leakage Current -1 1 µA 3
Internal Reference Output REFOUT 2.49 2.5 2.51 V Internal reference output, TA = 25°C 3
External Reference Input REFIN 1 V External reference input; max is VDD 3
Logic Input Current IIN -1 0.01 1 µA VIN = 0 V or VDRIVE 3
Logic Output Low Voltage VOL 0.4 V ISINK = 200 µA 3
Floating State Leakage Current -1 1 µA 3
Supply Voltage VDD VDD 2.7 5.25 V 3
Logic Supply Voltage VDRIVE VDRIVE 1.8 5.25 V 3
Operating Temperature TA -40 125 °C 3
Serial clock frequency, standard mode fSCL 100 kHz Standard mode 5
Serial clock frequency, fast mode fSCL 400 kHz Fast mode 5
SCL high time, standard mode t1 4 µs Standard mode 5
SCL high time, fast mode t1 0.6 µs Fast mode 5
SCL low time, standard mode t2 4.7 µs Standard mode 5
SCL low time, fast mode t2 1.3 µs Fast mode 5
Data setup time, standard mode t3 250 ns Standard mode 5
Data setup time, fast mode t3 100 ns Fast mode 5
Data hold time, standard mode t4 0 3.45 µs Standard mode 5
Data hold time, fast mode t4 0 0.9 µs Fast mode 5
Bus-free time, standard mode t7 4.7 µs Standard mode 5
Bus-free time, fast mode t7 1.3 µs Fast mode 5
Spike pulse width suppressed tSP 0 50 ns Fast mode 5
RESET pulse width tRESETPW 10 ns 5
RESET pulse delay upon power-up tRESET_DELAY 50 ns 5
VDD to GND VDD -0.3 7 V TA = 25°C 6
VDRIVE to GND VDRIVE -0.3 7 V TA = 25°C 6
Input Current to Any Pin Except Supplies -10 10 mA Transient currents of up to 100 mA do not cause SCR latch-up 6
Operating Temperature Range -40 125 °C 6
Storage Temperature Range -65 150 °C 6
Junction Temperature 150 °C 6
ESD HBM 1.5 kV Human Body Model 6
ESD FICDM 500 V Field Induced Charged Device Model 6
Thermal Resistance Junction-to-Ambient θJA 52 °C/W 20-Lead LFCSP_WQ 6
Thermal Resistance Junction-to-Case θJC 6.5 °C/W 20-Lead LFCSP_WQ 6
Signal-to-Noise Ratio SNR 68 dB fIN = 1 kHz sine wave 3
Signal-to-Noise-and-Distortion Ratio SINAD 67 dB fIN = 1 kHz sine wave 3
Total Harmonic Distortion THD -80 dB fIN = 1 kHz sine wave 3
Spurious-Free Dynamic Range SFDR -81 dB fIN = 1 kHz sine wave 3
Channel to Channel Isolation -105 dB fIN = 1 kHz sine wave 3
Offset Error Drift 2 ppm/°C 3
Gain Error Drift 1 ppm/°C 3
Reference Drift 5 ppm/°C 3
Multiplexer On Resistance 50 Ω VDD = 5.0 V 3
Reference Power-On Time 50 ms CREF = 2.2 µF 3

CAD (KiCad official)

  • Symbol: AD7091R-5BCPZ
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: LFCSP-20(4x4) (KiCad packages3D, STEP)
  • 3D model files: ad7091r-5bcpz-etched.step / ad7091r-5bcpz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad7091r-5bcpz.step / ad7091r-5bcpz.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (34 pp, sha256 09f7dfadd6f825a3, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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