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AD7478AARMZ

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Analog Devices Analog To Digital Converters (ADCs), MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentdata convertersad7478aarmzfactory-2.0.0extractor-text

Verified AD7478AARMZ

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, 8 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AD7478AARMZ · MSOP-8 · 8 pins
  • ✓copper: 8 copper pads, none touching another net
  • ✓datasheet: all 8 pin names found in the 28-page datasheet
  • ✓distributor: lcsc C651087, digikey AD7478AARMZ-ND, mouser 584-AD7478AARMZ
  • ✓family: MSOP-8_3x3mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-6kav12pj/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.26)
  • ✓pads: 8 pins = 8 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 8 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ad7478aarmz.kicad_sym✓ ad7478aarmz.kicad_mod✓ ad7478aarmz.step
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Ray Publish 0.1.0 44edef9 3d ago

AD7478AARMZ

Analog Devices · Analog To Digital Converters (ADCs) · MSOP-8

AD7478AARMZ from Analog Devices, in a MSOP-8. 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; the VDD range is 2.35 V to 5.25 V and also sets the reference and the 0 V to VDD analog input range.
2 SDATA output Serial data output carrying four leading zeros, 8 bits of conversion data MSB first, then four trailing zeros, clocked out on the falling edge of SCLK.
3 CS input Active-low chip select that initiates conversions and frames the serial data transfer.
4 NC unconnected No connect.
5 NC unconnected No connect.
6 SCLK input Serial clock input for accessing data from the part, also used as the clock source for the conversion process.
7 GND power_in Analog ground reference point for all circuitry; refer all analog input signals to this voltage.
8 VIN power_in Single-ended analog input channel with an input range of 0 V to VDD.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package MSOP-8
Category Data Converters
Pins 8

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 VDD VDD 2.35 5.25 V 11
VDD to GND VDD -0.3 7 V 10
Analog input voltage to GND -0.3 V 10
Digital input voltage to GND -0.3 7 V 10
Digital output voltage to GND -0.3 V 10
Input current to any pin except supplies 10 mA 10
Operating temperature range (commercial, A grade) -40 85 °C Commercial (A and B Grades) 10
Storage temperature range -65 150 °C 10
Junction temperature 150 °C 10
ESD rating (all other models) 3.5 kV 10
Linearity error (integral nonlinearity), ±0.3 maximum INL -0.3 0.3 LSB 27
SCLK frequency, A and B grades fSCLK 10 kHz A, B grades 8
SCLK frequency maximum fSCLK 20 MHz 8
CS pulse width t1 10 ns 8
CS to SCLK setup time t2 10 ns 8
Delay from CS until SDATA three-state disabled t3 22 ns 8
Data access time after SCLK falling edge t4 40 ns 8
SCLK low pulse width t5 0.4 tSCLK 8
SCLK high pulse width t6 0.4 tSCLK 8
SCLK to data valid hold time t7 10 ns VDD ≤ 3.3 V 8
SCLK to data valid hold time t7 9.5 ns 3.3 V < VDD ≤ 3.6 V 8
SCLK to data valid hold time t7 7 ns VDD > 3.6 V 8
SCLK falling edge to SDATA high impedance t8 36 ns 8
Quiet time between bus relinquish and start of next conversion tQUIET 50 ns 8
Power-up time from full power-down tPOWER-UP 1 μs 8
Thermal impedance junction to ambient (MSOP) θJA 205.9 °C/W MSOP package 10
Thermal impedance junction to case (MSOP) θJC 43.74 °C/W MSOP package 10
Lead temperature, reflow soldering 235 °C Reflow (10 sec to 30 sec) 10
Pb-free temperature soldering, reflow 255 °C Pb-free reflow 10

CAD (KiCad official)

  • Symbol: AD7478AARMZ
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: ad7478aarmz-etched.step / ad7478aarmz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad7478aarmz.step / ad7478aarmz.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (28 pp, sha256 f7084789e08c0a5a, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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