# AD5273BRJZ1-REEL7

**Analog Devices** · Digital Potentiometers · SOT-23-8

AD5273BRJZ1-REEL7 from Analog Devices, in a SOT-23-8. 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 | W | passive | Wiper terminal W; the voltage must stay within GND ≤ VW ≤ VDD. |
| 2 | VDD | power_in | Positive power supply specified for non-OTP operation from 2.7 V to 5.5 V; for OTP programming, VDD_OTP must be set within 5 V to 5.5 V for all end-to-end resistance options and be capable of sourcing 100 mA. |
| 3 | GND | power_in | Common ground for the device. |
| 4 | SCL | input | Serial clock input that requires a pull-up resistor; if driven directly from a logic controller without a pull-up, the VIH minimum must be 0.7 × VDD. |
| 5 | SDA | bidirectional | Serial data input/output that requires a pull-up resistor; if driven directly from a logic controller without a pull-up, the VIH minimum must be 0.7 × VDD. |
| 6 | AD0 | input | I2C device address bit that allows a maximum of two AD5273 devices to be addressed on the bus. |
| 7 | B | passive | Resistor terminal B; the voltage must stay within GND ≤ VB ≤ VDD. |
| 8 | A | passive | Resistor terminal A; the voltage must stay within GND ≤ VA ≤ VDD. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-23-8 |
| 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 |
|---|---|---|---|---|---|---|---|
| Nominal Resistance, 1 kΩ (RAB) | RAB | 0.8 | 1.2 | 1.6 | kΩ |  | 4 |
| Resistor Differential Nonlinearity, 1 kΩ (RWB) | R-DNL | -1 | 0.25 | 1 | LSB | 1 kΩ RWB, VA = NC | 4 |
| Resistor Nonlinearity, 1 kΩ (RWB) | R-INL | -5 | 2 | 5 | LSB | 1 kΩ RWB, VA = NC | 4 |
| Differential Nonlinearity (potentiometer mode) | DNL | -0.5 | 0.1 | 0.5 | LSB |  | 4 |
| Integral Nonlinearity (potentiometer mode) | INL | -0.5 |  | 0.5 | LSB |  | 4 |
| Full-Scale Error, 1 kΩ | VWFSE | -6 |  | 0 | LSB | Code = 0x3F, RAB = 1 kΩ | 4 |
| Zero-Scale Error, 1 kΩ | VWZSE | 0 |  | 5 | LSB | Code = 0x00, RAB = 1 kΩ | 4 |
| Wiper Resistance | RW |  | 60 | 100 | Ω | IW = VDD/R, VDD = 3 V or 5 V | 4 |
| Rheostat Mode Temperature Coefficient | (ΔRAB/RAB)/ΔT |  | 300 |  | ppm/°C | Wiper = NC | 4 |
| Voltage Divider Temperature Coefficient | (ΔVW/VW)/ΔT |  | 10 |  | ppm/°C | Code = 0x20 | 4 |
| Capacitance A, B | CA, CB |  | 25 |  | pF | f = 5 MHz, measured to GND, code = 0x20 | 4 |
| Capacitance W | CW |  | 55 |  | pF | f = 1 MHz, measured to GND, code = 0x20 | 4 |
| Input Logic Low (AD0) | VIL | 0 |  | 0.4 | V | VIN = 0 V or 5 V | 4 |
| Input Logic High (AD0) | VIH | 3 |  |  | V |  | 4 |
| Input Logic Current | IIL |  | 0.01 | 1 | µA |  | 4 |
| Input Capacitance | CIL |  | 3 |  | pF |  | 4 |
| Output Logic Low (SDA) | VOL |  |  | 0.4 | V |  | 4 |
| Three-State Leakage Current | IOZ | -1 |  | 1 | µA |  | 4 |
| Output Capacitance | COZ |  | 3 |  | pF |  | 4 |
| Power Supply Range | VDD | 2.7 |  | 5.5 | V |  | 4 |
| OTP Power Supply | VDD_OTP | 5 | 5.25 | 5.5 | V | TA = 25°C | 4 |
| Supply Current | IDD |  | 0.1 | 5 | µA | VIH = 5 V or VIL = 0 V | 4 |
| Power Dissipation | PDISS |  | 0.5 | 27.5 | µW | VIH = 5 V or VIL = 0 V, VDD = 5 V | 4 |
| Power Supply Sensitivity (RAB = 1 kΩ) | PSRR | -0.3 |  | 0.3 | %/% | RAB = 1 kΩ | 4 |
| Interface Timing, tHIGH High Period of SCL Clock | t4 | 0.6 |  | 50 | µs |  | 5 |
| Supply Voltage, VDD to GND | VDD | -0.3 |  | 6.5 | V |  | 6 |
| Maximum Current IWB, IWA Pulsed | IWB, IWA | -20 |  | 20 | mA | Pulsed | 6 |
| Maximum Current IWB Continuous | IWB | -4 |  | 4 | mA | RWB ≤ 1 kΩ, A Open | 6 |
| Maximum Current IWA Continuous | IWA | -4 |  | 4 | mA | RWA ≤ 1 kΩ, B Open | 6 |
| Digital Input and Output Voltage to GND |  | 0 |  |  | V |  | 6 |
| Operating Temperature Range | TA | -40 |  | 105 | °C |  | 6 |
| Maximum Junction Temperature | TJ max |  |  | 150 | °C |  | 6 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 6 |
| Reflow Soldering Peak Temperature |  |  |  | 260 | °C | Reflow soldering | 6 |
| Reflow Soldering Time at Peak Temperature |  | 20 |  | 40 | s | Reflow soldering | 6 |
| Thermal Resistance, Junction-to-Ambient | θJA |  | 230 |  | °C/W | SOT-23 package | 6 |
| Operating Temperature Range | TA | -40 |  | 105 | °C |  | 4 |

## CAD (KiCad official)

- Symbol: `AD5273BRJZ1-REEL7`
- Footprint: `Package_TO_SOT_SMD:SOT-23-8`
- 3D model: SOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `ad5273brjz1-reel7-etched.step` / `ad5273brjz1-reel7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad5273brjz1-reel7.step` / `ad5273brjz1-reel7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/AD5273.pdf) (20 pp, sha256 `86e0be83e05dbf72`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/ad5273brjz1-reel7-datasheet.pdf)