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AD7991YRJZ-1500RL7
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Analog Devices Analog To Digital Converters (ADCs), SOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAD7991YRJZ-1500RL7
Analog Devices · Analog To Digital Converters (ADCs) · SOT-23-8
AD7991YRJZ-1500RL7 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 | SCL | input | Digital input for the serial bus clock; an external pull-up resistor is required. |
| 2 | SDA | bidirectional | Digital I/O serial bus bidirectional data with open-drain output; an external pull-up resistor is required. |
| 3 | VIN0 | input | Analog Input 1, single-ended analog input channel with an input range of 0 V to VREF. |
| 4 | VIN1 | input | Analog Input 2, single-ended analog input channel with an input range of 0 V to VREF. |
| 5 | VIN2 | input | Analog Input 3, single-ended analog input channel with an input range of 0 V to VREF. |
| 6 | VIN3/VREF | input | Analog Input 4, single-ended analog input channel with an input range of 0 V to VREF, which can also be used to input an external VREF signal. |
| 7 | GND | power_in | Analog ground reference point for all circuitry, to which all analog input signals should be referred. |
| 8 | VDD | power_in | Power supply input with a VDD range of 2.7 V to 5.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-23-8 |
| Category | ADC/DAC/Data Conversion |
| 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 |
|---|---|---|---|---|---|---|---|
| Signal-to-Noise and Distortion | SINAD | 69.5 | 70 | dB | fIN = 10 kHz sine wave for fSCL 1.7 MHz to 3.4 MHz | 3 | |
| Signal-to-Noise Ratio | SNR | 70 | 71 | dB | fIN = 10 kHz sine wave for fSCL 1.7 MHz to 3.4 MHz | 3 | |
| Differential Nonlinearity | DNL | -0.9 | 0.9 | LSB | Guaranteed no missed codes to 12 bits | 3 | |
| Offset Error | -7 | 1 | 7 | LSB | 3 | ||
| Input Voltage Range | 0 | V | VREF = VIN3/VREF or VDD; max = VREF | 3 | |||
| VREF Input Voltage Range | 1.2 | V | max = VDD | 3 | |||
| Analog Input DC Leakage Current | -1 | 1 | µA | 3 | |||
| Reference DC Leakage Current | -1 | 1 | µA | 3 | |||
| SDA fall time, standard mode | t10 | 300 | ns | Standard mode | 10 | ||
| SDA fall time, fast mode | t10 | 300 | ns | Fast mode (min 20 + 0.1 CB) | 10 | ||
| SDA fall time, high speed | t10 | 10 | 80 | ns | High speed mode, CB = 100 pF maximum | 10 | |
| SDA fall time, high speed | t10 | 20 | 160 | ns | High speed mode, CB = 400 pF maximum | 10 | |
| SCL rise time, standard mode | t11 | 1000 | ns | Standard mode | 10 | ||
| SCL rise time, fast mode | t11 | 300 | ns | Fast mode (min 20 + 0.1 CB) | 10 | ||
| SCL rise time, high speed | t11 | 10 | 40 | ns | High speed mode, CB = 100 pF maximum | 10 | |
| SCL rise time, high speed | t11 | 20 | 80 | ns | High speed mode, CB = 400 pF maximum | 10 | |
| SCL rise time after repeated start, standard mode | t11A | 1000 | ns | Standard mode | 10 | ||
| SCL rise time after repeated start, fast mode | t11A | 300 | ns | Fast mode (min 20 + 0.1 CB) | 10 | ||
| SCL rise time after repeated start, high speed | t11A | 10 | 80 | ns | High speed mode, CB = 100 pF maximum | 10 | |
| SCL rise time after repeated start, high speed | t11A | 20 | 160 | ns | High speed mode, CB = 400 pF maximum | 10 | |
| SCL fall time, standard mode | t12 | 300 | ns | Standard mode | 10 | ||
| SCL fall time, fast mode | t12 | 300 | ns | Fast mode (min 20 + 0.1 CB) | 10 | ||
| SCL fall time, high speed | t12 | 10 | 40 | ns | High speed mode, CB = 100 pF maximum | 10 | |
| SCL fall time, high speed | t12 | 20 | 80 | ns | High speed mode, CB = 400 pF maximum | 10 | |
| Suppressed spike pulse width, fast mode | tSP | 0 | 50 | ns | Fast mode | 10 | |
| Suppressed spike pulse width, high speed mode | tSP | 0 | 10 | ns | High speed mode | 10 | |
| Power-up and acquisition time | tPOWER-UP | 0.6 | µs | 10 | |||
| VDD to GND | VDD | -0.3 | 7 | V | TA = 25°C | 11 | |
| Analog Input Voltage to GND | -0.3 | V | max VDD + 0.3 V | 11 | |||
| Reference Input Voltage to GND | -0.3 | V | max VDD + 0.3 V | 11 | |||
| Digital Input Voltage to GND | -0.3 | 7 | V | 11 | |||
| Digital Output Voltage to GND | -0.3 | V | max VDD + 0.3 V | 11 | |||
| Input Current to Any Pin Except Supplies | -10 | 10 | mA | 11 | |||
| Operating Temperature Range (Y Version) | -40 | 125 | °C | Industrial | 11 | ||
| Storage Temperature Range | -65 | 150 | °C | 11 | |||
| Junction Temperature | 150 | °C | 11 | ||||
| Thermal Impedance | θJA | 170 | °C/W | 8-Lead SOT-23 | 11 | ||
| Thermal Impedance | θJC | 90 | °C/W | 8-Lead SOT-23 | 11 | ||
| Soldering Reflow Temperature | 260 | °C | RoHS compliant, +0°C | 11 | |||
| ESD | 1 | kV | 11 | ||||
| Supply Voltage | VDD | 2.7 | 5.5 | V | Specified VDD range | 1 | |
| Channel-to-Channel Isolation | -90 | dB | fIN = 10 kHz | 3 | |||
| Offset Temperature Drift | 4.43 | ppm/°C | 3 | ||||
| Gain Temperature Drift | 0.69 | ppm/°C | 3 |
CAD (KiCad official)
- Symbol:
AD7991YRJZ-1500RL7 - Footprint:
Package_TO_SOT_SMD:SOT-23-8 - 3D model: SOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
ad7991yrjz-1500rl7-etched.step/ad7991yrjz-1500rl7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad7991yrjz-1500rl7.step/ad7991yrjz-1500rl7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (27 pp, sha256
aa03e45f097a0238, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-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).