# AD5791BRUZ

**Analog Devices** · Digital To Analog Converters (DAC) · TSSOP-20

AD5791BRUZ 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 | INV | passive | Connection to the inverting input of an external amplifier; see the AD5791 Features section for further details. |
| 2 | VOUT | output | Analog output voltage of the DAC. |
| 3 | VREFPS | input | Positive reference sense voltage input; a voltage range of 5 V to VDD − 2.5 V can be connected, and a unity-gain amplifier must be connected at this pin in conjunction with VREFPF. |
| 4 | VREFPF | input | Positive reference force voltage input; a voltage range of 5 V to VDD − 2.5 V can be connected, and a unity-gain amplifier must be connected at this pin in conjunction with VREFPS. |
| 5 | VDD | power_in | Positive analog supply connection; a voltage range of 7.5 V to 16.5 V can be connected, and VDD should be decoupled to AGND. |
| 6 | RESET | input | Active-low reset logic input; asserting this pin returns the AD5791 to its power-on status. |
| 7 | CLR | input | Active-low clear logic input; asserting this pin sets the DAC register to a user-defined value (see Table 13) and updates the DAC output. |
| 8 | LDAC | input | Active-low load DAC logic input; when tied permanently low the output updates on the rising edge of SYNC, and LDAC must not be left unconnected. |
| 9 | VCC | power_in | Digital supply connection; a voltage range of 2.7 V to 5.5 V can be connected, and VCC should be decoupled to DGND. |
| 10 | IOVCC | power_in | Digital interface supply pin that sets the digital threshold levels; a voltage in the range of 1.71 V to 5.5 V can be connected, and IOVCC must not exceed VCC. |
| 11 | SDO | output | Serial data output; data is clocked out on the rising edge of the serial clock input. |
| 12 | SDIN | input | Serial data input to the 24-bit shift register; data is clocked in on the falling edge of the serial clock. |
| 13 | SCLK | input | Serial clock input; data is clocked into the input shift register on the falling edge, with clock rates of up to 35 MHz. |
| 14 | SYNC | input | Active-low digital interface synchronization input; when SYNC is low it enables the input shift register, which is updated on the rising edge of SYNC. |
| 15 | DGND | power_in | Ground reference pin for digital circuitry. |
| 16 | VREFNF | input | Negative reference force voltage input; a voltage range of VSS + 2.5 V to 0 V can be connected, and a unity-gain amplifier must be connected at this pin in conjunction with VREFNS. |
| 17 | VREFNS | input | Negative reference sense voltage input; a voltage range of VSS + 2.5 V to 0 V can be connected, and a unity-gain amplifier must be connected at this pin in conjunction with VREFNF. |
| 18 | VSS | power_in | Negative analog supply connection; a voltage range of −16.5 V to −2.5 V can be connected, and VSS should be decoupled to AGND. |
| 19 | AGND | power_in | Ground reference pin for analog circuitry. |
| 20 | RFB | passive | Feedback connection for an external amplifier; see the AD5791 Features section for further details. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSSOP-20 |
| Category | Data Acquisition |
| 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 |
|---|---|---|---|---|---|---|---|
| Integral Nonlinearity Error (Relative Accuracy) |  | -1 | 0.25 | 1 | LSB | B version, VREFP = +10 V, VREFN = −10 V, TA = 0°C to 105°C | 3 |
| Integral Nonlinearity Error (Relative Accuracy) |  | -1.5 | 0.25 | 1.5 | LSB | B version, VREFP = +10 V, VREFN = −10 V | 3 |
| Integral Nonlinearity Error (Relative Accuracy) |  | -1.5 | 0.5 | 1.5 | LSB | B version, VREFP = 10 V, VREFN = 0 V | 3 |
| Integral Nonlinearity Error (Relative Accuracy) |  | -3 | 1 | 3 | LSB | B version, VREFP = 5 V, VREFN = 0 V | 3 |
| Differential Nonlinearity Error |  | -1 | 0.5 | 1 | LSB | VREFP = +10 V, VREFN = −10 V | 3 |
| Differential Nonlinearity Error |  | -1.5 | 0.75 | 1.5 | LSB | VREFP = 10 V, VREFN = 0 V | 3 |
| Differential Nonlinearity Error |  | -2.5 | 1 | 2.5 | LSB | VREFP = 5 V, VREFN = 0 V | 3 |
| Full-Scale Error |  | -7 | 0.1 | 7 | LSB | VREFP = +10 V, VREFN = −10 V | 3 |
| Full-Scale Error |  | -11 | 0.25 | 11 | LSB | VREFP = 10 V, VREFN = 0 V | 3 |
| Full-Scale Error |  | -21 | 0.8 | 21 | LSB | VREFP = 5 V, VREFN = 0 V | 3 |
| Full-Scale Error |  | -4 | 0.1 | 4 | LSB | VREFP = +10 V, VREFN = −10 V, TA = 0°C to 105°C | 3 |
| Full-Scale Error |  | -4 | 0.25 | 4 | LSB | VREFP = 10 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| Full-Scale Error |  | -6 | 0.8 | 6 | LSB | VREFP = 5 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| Zero-Scale Error |  | -7 | 0.1 | 7 | LSB | VREFP = +10 V, VREFN = −10 V | 3 |
| Zero-Scale Error |  | -10 | 0.15 | 10 | LSB | VREFP = 10 V, VREFN = 0 V | 3 |
| Zero-Scale Error |  | -21 | 0.75 | 21 | LSB | VREFP = 5 V, VREFN = 0 V | 3 |
| Zero-Scale Error |  | -4 | 0.1 | 4 | LSB | VREFP = +10 V, VREFN = −10 V, TA = 0°C to 105°C | 3 |
| Zero-Scale Error |  | -4 | 0.15 | 4 | LSB | VREFP = 10 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| Zero-Scale Error |  | -6 | 0.75 | 6 | LSB | VREFP = 5 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| Gain Error |  | -6 | 0.3 | 6 | ppm FSR | VREFP = +10 V, VREFN = −10 V | 3 |
| Gain Error |  | -10 | 0.4 | 10 | ppm FSR | VREFP = 10 V, VREFN = 0 V | 3 |
| Gain Error |  | -20 | 0.4 | 20 | ppm FSR | VREFP = 5 V, VREFN = 0 V | 3 |
| Gain Error |  | -6 | 0.4 | 6 | ppm FSR | VREFP = 10 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| Gain Error |  | -7 | 0.4 | 7 | ppm FSR | VREFP = 5 V, VREFN = 0 V, TA = 0°C to 105°C | 3 |
| VREFP Input Range (max VDD − 2.5 V) | VREFP | 5 |  |  | V |  | 4 |
| VREFN Input Range (min VSS + 2.5 V) | VREFN |  |  | 0 | V |  | 4 |
| Input Current (individual logic pin) |  | -1 |  | 1 | µA |  | 4 |
| Output Low Voltage | VOL |  |  | 0.4 | V | IOVCC = 1.71 V to 5.5 V, sinking 1 mA | 4 |
| High Impedance Leakage Current (SDO) |  | -1 |  | 1 | µA |  | 4 |
| Positive Analog Supply Range VDD (max VSS + 33 V) | VDD | 7.5 |  |  | V | All digital inputs at DGND or IOVCC | 4 |
| Negative Analog Supply Range VSS (min VDD − 33 V) | VSS |  |  | -2.5 | V | All digital inputs at DGND or IOVCC | 4 |
| Digital Supply Range VCC | VCC | 2.7 |  | 5.5 | V | All digital inputs at DGND or IOVCC | 4 |
| Digital Interface Supply Range IOVCC | IOVCC | 1.71 |  | 5.5 | V | All digital inputs at DGND or IOVCC; IOVCC ≤ VCC | 4 |
| Positive Supply Current IDD | IDD |  | 4.2 | 5.2 | mA | All digital inputs at DGND or IOVCC | 4 |
| Negative Supply Current ISS | ISS |  | 4 | 4.9 | mA | All digital inputs at DGND or IOVCC | 4 |
| Digital Supply Current ICC | ICC |  | 600 | 900 | µA | All digital inputs at DGND or IOVCC | 4 |
| IOVCC Supply Current (SDO disabled) | IOICC |  | 52 | 140 | µA | All digital inputs at DGND or IOVCC; SDO disabled | 4 |
| DC Power Supply Rejection Ratio (VDD) |  | -0.6 |  | 0.6 | µV/V | VDD ± 10%, VSS = 15 V | 4 |
| DC Power Supply Rejection Ratio (VSS) |  | -0.6 |  | 0.6 | µV/V | VSS ± 10%, VDD = 15 V | 4 |
| Operating Temperature Range, Industrial | TA | -40 |  | 125 | °C | TA = 25°C, unless otherwise noted | 7 |
| Storage Temperature Range |  | -65 |  | 150 | °C | TA = 25°C, unless otherwise noted | 7 |
| Maximum Junction Temperature TJ max | TJ |  |  | 150 | °C | TA = 25°C, unless otherwise noted | 7 |
| VDD to AGND |  | -0.3 |  | 34 | V | TA = 25°C, unless otherwise noted | 7 |
| VSS to AGND |  | -34 |  | 0.3 | V | TA = 25°C, unless otherwise noted | 7 |
| VDD to VSS |  | -0.3 |  | 34 | V | TA = 25°C, unless otherwise noted | 7 |
| VCC to DGND |  | -0.3 |  | 7 | V | TA = 25°C, unless otherwise noted | 7 |
| IOVCC to DGND (max VCC + 0.3 V or +7 V, whichever is less) |  | -0.3 |  |  | V | TA = 25°C, unless otherwise noted | 7 |
| Digital Inputs to DGND (max IOVCC + 0.3 V or +7 V, whichever is less) |  | -0.3 |  |  | V | TA = 25°C, unless otherwise noted | 7 |
| VOUT to AGND (max VDD + 0.3 V) |  | -0.3 |  |  | V | TA = 25°C, unless otherwise noted | 7 |
| VREFPF to AGND (max VDD + 0.3 V) |  | -0.3 |  |  | V | TA = 25°C, unless otherwise noted | 7 |
| VREFPS to AGND (max VDD + 0.3 V) |  | -0.3 |  |  | V | TA = 25°C, unless otherwise noted | 7 |
| VREFNF to AGND (min VSS − 0.3 V) |  |  |  | 0.3 | V | TA = 25°C, unless otherwise noted | 7 |
| VREFNS to AGND (min VSS − 0.3 V) |  |  |  | 0.3 | V | TA = 25°C, unless otherwise noted | 7 |
| DGND to AGND |  | -0.3 |  | 0.3 | V | TA = 25°C, unless otherwise noted | 7 |
| Thermal Impedance, junction-to-ambient θJA | θJA |  | 143 |  | °C/W | TSSOP package | 7 |
| Thermal Impedance, junction-to-case θJC | θJC |  | 45 |  | °C/W | TSSOP package | 7 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | Abs |  | ESD (Human Body Model) 1.5 kV Stresses at or above those listed under Absolute Maximum | 7 |

## CAD (KiCad official)

- Symbol: `AD5791BRUZ`
- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`
- 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files: `ad5791bruz-etched.step` / `ad5791bruz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad5791bruz.step` / `ad5791bruz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893152556433408) (27 pp, sha256 `0d17ccf41a167767`, retrieved 2026-10-18, tier: lcsc)
- **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/ad5791bruz-datasheet.pdf)