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AD7998BRUZ-1REEL

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

componentdata convertersad7998bruz-1reelfactory-2.0.0extractor-text

Verified AD7998BRUZ-1REEL

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 20 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: AD7998BRUZ-1REEL · TSSOP-20 · 20 pins
  • ✓copper: 20 copper pads, none touching another net
  • ✓datasheet: all 20 pin names found in the 32-page datasheet
  • ✓distributor: lcsc C652136, digikey AD7998BRUZ-1REELTR-ND, mouser 584-AD7998BRUZ-1R
  • ✓family: TSSOP-20_4.4x6.5mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-4iowi7by/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.31)
  • ✓pads: 20 pins = 20 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 20 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ad7998bruz-1reel.kicad_sym✓ ad7998bruz-1reel.kicad_mod✓ ad7998bruz-1reel.step
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Ray Publish 0.1.0 36e4bd6 3d ago

AD7998BRUZ-1REEL

Analog Devices · Analog To Digital Converters (ADCs) · TSSOP-20

AD7998BRUZ-1REEL from Analog Devices, in a TSSOP-20. 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 AGND power_in Analog ground reference for all circuitry; all analog input signals should be referred to this AGND voltage.
2 VDD power_in Power supply input, range 2.7 V to 5.5 V.
3 AGND power_in Analog ground reference for all circuitry; all analog input signals should be referred to this AGND voltage.
4 AGND power_in Analog ground reference for all circuitry; all analog input signals should be referred to this AGND voltage.
5 VDD power_in Power supply input, range 2.7 V to 5.5 V.
6 REFIN input External voltage reference input with a range of 1.2 V to VDD, with 0.1 µF and 1 µF capacitors placed between REFIN and AGND.
7 VIN1 input Analog input 1, single-ended channel with input range 0 V to REFIN.
8 VIN3 input Analog input 3, single-ended channel with input range 0 V to REFIN.
9 VIN5 input Analog input 5, single-ended channel with input range 0 V to REFIN.
10 VIN7 input Analog input 7, single-ended channel with input range 0 V to REFIN.
11 VIN8 input Analog input 8, single-ended channel with input range 0 V to REFIN.
12 VIN6 input Analog input 6, single-ended channel with input range 0 V to REFIN.
13 VIN4 input Analog input 4, single-ended channel with input range 0 V to REFIN.
14 VIN2 input Analog input 2, single-ended channel with input range 0 V to REFIN.
15 AS input Address select logic input that selects one of three I2C addresses depending on the voltage applied (AGND, VDD or floating).
16 CONVST input Edge-triggered convert start input; rising edge powers up the part (1 µs power-up time) and falling edge places track/hold into hold and initiates a conversion.
17 ALERT/BUSY output Open-drain digital output selectable as out-of-range ALERT or BUSY (conversion in progress) indicator.
18 SDA bidirectional Serial bus bidirectional data, open-drain output, external pull-up resistor required.
19 SCL input Serial bus clock, open-drain input, external pull-up resistor required.
20 AGND power_in Analog ground reference for all circuitry; all analog input signals should be referred to this AGND voltage.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package TSSOP-20
Category Data Converters
Pins 20

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
VDD to GND VDD -0.3 7 V TA = 25°C 9
Digital Input Voltage to GND -0.3 7 V TA = 25°C 9
Input Current to Any Pin Except Supplies -10 10 mA ±10 mA; transient currents of up to 100 mA do not cause SCR latch-up 9
Storage Temperature Range -65 150 °C 9
Junction Temperature TJ 150 °C 9
Pb-free Soldering Reflow Temperature 260 °C Pb-free reflow, 260 (+0)°C 9
ESD 1.5 kV 9
Analog Input Voltage to GND -0.3 V -0.3 V to VDD + 0.3 V 9
Reference Input Voltage to GND -0.3 V -0.3 V to VDD + 0.3 V 9
Digital Output Voltage to GND -0.3 V -0.3 V to VDD + 0.3 V 9
Operating Temperature Range (B Version) -40 85 °C Commercial (B Version) 9
Supply Voltage VDD 2.7 5.5 V VDD range for the AD7997/AD7998 10
REFIN Voltage Range REFIN 1.2 V 1.2 V to VDD 10
Thermal Impedance, junction to ambient θJA 143 °C/W 20-Lead TSSOP 9
Thermal Impedance, junction to case θJC 45 °C/W 20-Lead TSSOP 9
SDA fall time, standard mode t10 300 ns Standard mode 8
SDA fall time, fast mode t10 300 ns Fast mode; min is 20 + 0.1 CB 8
SDA fall time, high speed t10 10 80 ns High speed mode, CB = 100 pF max 8
SDA fall time, high speed t10 20 160 ns High speed mode, CB = 400 pF max 8
SCL rise time, standard mode t11 1000 ns Standard mode 8
SCL rise time, fast mode t11 300 ns Fast mode; min is 20 + 0.1 CB 8
SCL rise time, high speed t11 10 40 ns High speed mode, CB = 100 pF max 8
SCL rise time, high speed t11 20 80 ns High speed mode, CB = 400 pF max 8
SCL rise time after repeated start and after Acknowledge bit, standard mode t11A 1000 ns Standard mode 8
SCL rise time after repeated start and after Acknowledge bit, fast mode t11A 300 ns Fast mode; min is 20 + 0.1 CB 8
SCL rise time after repeated start and after Acknowledge bit, high speed t11A 10 80 ns High speed mode, CB = 100 pF max 8
SCL rise time after repeated start and after Acknowledge bit, high speed t11A 20 160 ns High speed mode, CB = 400 pF max 8
SCL fall time, standard mode t12 300 ns Standard mode 8
SCL fall time, fast mode t12 300 ns Fast mode; min is 20 + 0.1 CB 8
SCL fall time, high speed t12 10 40 ns High speed mode, CB = 100 pF max 8
SCL fall time, high speed t12 20 80 ns High speed mode, CB = 400 pF max 8
Pulse width of suppressed spike, fast mode tSP 0 50 ns Fast mode 8
Pulse width of suppressed spike, high speed mode tSP 0 10 ns High speed mode 8
Power-up time tPOWER-UP 1 µs 8

CAD (KiCad official)

  • Symbol: AD7998BRUZ-1REEL
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: ad7998bruz-1reel-etched.step / ad7998bruz-1reel-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad7998bruz-1reel.step / ad7998bruz-1reel.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (32 pp, sha256 081ef00889049a99, retrieved 2026-10-31, 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