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AD5447YRUZ-REEL7

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Analog Devices Digital To Analog Converters (DAC), TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AD5447YRUZ-REEL7

Analog Devices · Digital To Analog Converters (DAC) · TSSOP-24

AD5447YRUZ-REEL7 from Analog Devices, in a TSSOP-24. 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 DAC analog ground pin; normally connected to the system analog ground but can be biased to allow single-supply operation.
2 IOUTA output DAC A current output pin.
3 RFBA passive DAC A feedback resistor pin, connected to the external amplifier output to establish the DAC voltage output.
4 VREFA input DAC A reference voltage input pin; the reference input range is ±10 V.
5 DGND power_in Digital ground pin.
6 DAC A/B input Selects DAC A when low and DAC B when high.
7 DB11 bidirectional Parallel data bit 11 of the 12-bit data word; the data bus is also used to read back DAC register contents.
8 DB10 bidirectional Parallel data bit 10 of the 12-bit data word; the data bus is also used to read back DAC register contents.
9 DB9 bidirectional Parallel data bit 9 of the 12-bit data word; the data bus is also used to read back DAC register contents.
10 DB8 bidirectional Parallel data bit 8 of the 12-bit data word; the data bus is also used to read back DAC register contents.
11 DB7 bidirectional Parallel data bit 7 of the 12-bit data word; the data bus is also used to read back DAC register contents.
12 DB6 bidirectional Parallel data bit 6 of the 12-bit data word; the data bus is also used to read back DAC register contents.
13 DB5 bidirectional Parallel data bit 5 of the 12-bit data word; the data bus is also used to read back DAC register contents.
14 DB4 bidirectional Parallel data bit 4 of the 12-bit data word; the data bus is also used to read back DAC register contents.
15 DB3 bidirectional Parallel data bit 3 of the 12-bit data word; the data bus is also used to read back DAC register contents.
16 DB2 bidirectional Parallel data bit 2 of the 12-bit data word; the data bus is also used to read back DAC register contents.
17 DB1 bidirectional Parallel data bit 1 of the 12-bit data word; the data bus is also used to read back DAC register contents.
18 DB0 bidirectional Parallel data bit 0, the least significant bit (LSB), of the 12-bit data word; the data bus is also used to read back DAC register contents.
19 CS input Active-low chip select input; used with R/W to load parallel data into the input latch or to read data from the DAC register.
20 R/W input Read/write input; low with CS loads parallel data, and high with CS reads back the DAC register contents.
21 VDD power_in Positive power supply input; the device operates from a 2.5 V to 5.5 V supply.
22 VREFB input DAC B reference voltage input pin; the reference input range is ±10 V.
23 RFBB passive DAC B feedback resistor pin, connected to the external amplifier output to establish the DAC voltage output.
24 IOUTB output DAC B current output pin.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package TSSOP-24
Category Data Acquisition
Pins 24

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
相对精度 -1 1 LSB 3
差分非线性 -1 2 LSB 保证单调性 3
增益误差 -25 25 mV 3
增益误差温度系数 -5 5 ppm FSR/°C 3
输出漏电流 -5 5 nA 数据 = 0x0000，TA = 25°C 3
输出漏电流 -15 15 nA 数据 = 0x0000 3
基准输入范围 -10 10 V 3
VREFA、VREFB输入电阻 8 10 13 kΩ 输入电阻TC = -50 ppm/°C 3
反馈电阻 R R 8 10 12 kΩ 16
VREFA至VREFB输入电阻不匹配 1.6 2.5 % 典型值 = 25°C，最大值 = 125°C 3
输入高电压 VIH 1.7 V VDD = 3.6 V至5.5 V 3
输入低电压 VIL 0.8 V VDD = 2.7 V至5.5 V 3
输入低电压 VIL 0.7 V VDD = 2.5 V至2.7 V 3
输出低电压 VOL 0.4 V VDD = 4.5 V至5.5 V, I SINK = 200 µA 3
输入电容 4 10 pF 3
输出电容 12 17 pF DAC锁存加载全0 4
输出电容 25 30 pF DAC锁存加载全1 4
输出电压建立时间 (FS测量精度±1 mV) 80 120 ns RLOAD = 100 Ω，CLOAD = 15 pF，VREF = 10 V，DAC锁存交替加载0和1 3
输出电压建立时间 (FS测量精度±4 mV) 35 70 ns RLOAD = 100 Ω，CLOAD = 15 pF，VREF = 10 V，DAC锁存交替加载0和1 3
输出电压建立时间 (FS测量精度±16 mV) 30 60 ns RLOAD = 100 Ω，CLOAD = 15 pF，VREF = 10 V，DAC锁存交替加载0和1 3
数字延迟 20 40 ns 接口延迟时间 3
10%至90%建立时间 15 30 ns 上升和下降时间，VREF = 10 V，RLOAD = 100 Ω 3
电源电压范围 VDD 2.5 5.5 V 4
电源电流 IDD IDD 0.5 10 µA TA = −40°C至+125°C，逻辑输入 = 0 V或VDD 4
VDD至GND VDD -0.3 7 V 6
VREFA、VREFB、RFBA、RFBB至DGND -12 12 V 6
IOUT1、IOUT2至DGND -0.3 7 V 6
工作温度范围 (汽车应用 Y级) -40 125 °C 6
存储温度范围 -65 150 °C 6
结温 150 °C 6
24引脚 TSSOP θJA热阻 θJA 128 °C/W 24引脚 TSSOP 6
引脚温度，焊接 300 °C 10秒 6
IR回流焊峰值温度 235 °C 低于20秒 6

CAD (KiCad official)

  • Symbol: AD5447YRUZ-REEL7
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: ad5447yruz-reel7-etched.step / ad5447yruz-reel7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad5447yruz-reel7.step / ad5447yruz-reel7.glb are the bare package body.

Provenance

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

  • Datasheet: Analog Devices datasheet (32 pp, sha256 edba9a6fc53a9b5c, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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