component
AD7946BRMZRL7
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADC), MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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AD7946BRMZRL7
Analog Devices · Analog To Digital Converters (ADC) · MSOP-10
AD7946BRMZRL7 from Analog Devices, in a MSOP-10. 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 | REF | input | Reference input voltage with a range of 0.5 V to VDD, referred to GND, and should be decoupled closely to the pin with a 10 µF capacitor. |
| 2 | VDD | power_in | Power supply; the specifications are defined for VDD = 4.5 V to 5.5 V. |
| 3 | IN+ | input | Analog input referred to IN−, with the differential voltage range (IN+ minus IN−) of 0 V to REF. |
| 4 | IN− | input | Analog input ground sense, to be connected to the analog ground plane or to a remote sense ground. |
| 5 | GND | power_in | Power supply ground, the reference point for REF. |
| 6 | CNV | input | Convert input that initiates conversions on its leading edge and selects chain or CS interface mode; in CS mode it enables SDO when low, and in chain mode data is read when CNV is high. |
| 7 | SDO | output | Serial data output carrying the conversion result, synchronized to SCK. |
| 8 | SCK | input | Serial data clock input that shifts the conversion result out of the part when it is selected. |
| 9 | SDI | input | Serial data input that selects the interface mode: low at the CNV rising edge selects chain mode (daisy-chain data input, output on SDO after 14 SCK cycles), high selects CS mode with BUSY indicator option. |
| 10 | VIO | power_in | Interface digital power, nominally at the host interface supply of 1.8 V, 2.5 V, 3 V, or 5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-10 |
| Category | Data Acquisition |
| Pins | 10 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Voltage Range IN+ − IN− | 0 | V | IN+ − IN−; maximum printed as REF | 3 | |||
| Absolute Input Voltage IN+ | -0.1 | V | IN+; maximum printed as VDD + 0.1 | 3 | |||
| Absolute Input Voltage IN− | -0.1 | 0.1 | V | IN− | 3 | ||
| Differential Linearity Error | -0.7 | 0.3 | 0.7 | LSB | 3 | ||
| Integral Linearity Error | -1 | 0.4 | 1 | LSB | 3 | ||
| Gain Error, TMIN to TMAX | -6 | 0.3 | 6 | LSB | TMIN to TMAX | 3 | |
| Gain Error Temperature Drift | -1 | 1 | ppm/°C | 3 | |||
| Offset Error, TMIN to TMAX | -6 | 0.3 | 6 | LSB | TMIN to TMAX | 3 | |
| Offset Temperature Drift | -1 | 1 | ppm/°C | 3 | |||
| Power Supply Sensitivity | -0.1 | 0.1 | LSB | VDD = 5 V ± 5% | 3 | ||
| Conversion Rate | 0 | 500 | kSPS | 3 | |||
| Signal-to-Noise | SNR | 84.5 | 85 | dB | fIN = 20 kHz, REF = 5 V | 3 | |
| Signal-to-(Noise + Distortion) | SINAD | 84.5 | 85 | dB | fIN = 20 kHz, REF = 5 V | 3 | |
| Conversion Time: CNV Rising Edge to Data Available | tCONV | 0.5 | 1.6 | µs | 5 | ||
| Input voltage IN+, IN− (relative to GND) | -0.3 | V | IN+, IN−; relative to GND; maximum printed as VDD + 0.3 V | 6 | |||
| Analog input current IN+, IN− | -130 | 130 | mA | IN+, IN−; alternative limit printed as ±130 mA | 6 | ||
| Reference input voltage REF (relative to GND) | -0.3 | V | REF; relative to GND; maximum printed as VDD + 0.3 V | 6 | |||
| Supply voltages VDD, VIO to GND | -0.3 | 7 | V | VDD, VIO to GND | 6 | ||
| VDD to VIO | -7 | 7 | V | VDD to VIO | 6 | ||
| Digital inputs to GND | -0.3 | V | Digital inputs to GND; maximum printed as VIO + 0.3 V | 6 | |||
| Digital outputs to GND | -0.3 | V | Digital outputs to GND; maximum printed as VIO + 0.3 V | 6 | |||
| Storage Temperature Range | -65 | 150 | °C | 6 | |||
| Junction Temperature | 150 | °C | 6 | ||||
| Lead Temperature, Vapor Phase | 215 | °C | Vapor phase, 60 sec | 6 | |||
| Lead Temperature, Infrared | 220 | °C | Infrared, 15 sec | 6 | |||
| θJA Thermal Impedance, 10-Lead MSOP | θJA | 200 | °C/W | 10-Lead MSOP | 6 | ||
| θJC Thermal Impedance, 10-Lead MSOP | θJC | 44 | °C/W | 10-Lead MSOP | 6 | ||
| Supply voltage VDD | VDD | 4.5 | 5.5 | V | 3 | ||
| Interface supply voltage VIO | VIO | 2.3 | V | maximum printed as VDD | 3 | ||
| Operating ambient temperature TA | TA | -40 | 85 | °C | 3 | ||
| Reference input voltage REF | REF | 0.5 | V | maximum printed as VDD | 7 |
CAD (KiCad official)
- Symbol:
AD7946BRMZRL7 - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files:
ad7946brmzrl7-etched.step/ad7946brmzrl7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad7946brmzrl7.step/ad7946brmzrl7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (24 pp, sha256
a7c07f878f8ff6e4, retrieved 2026-10-20, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).