component
AD7691BRMZ
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADCs), MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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AD7691BRMZ
Analog Devices · Analog To Digital Converters (ADCs) · MSOP-10
AD7691BRMZ 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 from 0.5 V to VDD, referred to GND and to be decoupled closely with a 10 µF capacitor. |
| 2 | VDD | power_in | Power supply, 2.3 V to 5 V nominal operation (specified 2.3 V to 5.25 V). |
| 3 | IN+ | input | Differential positive analog input referenced to IN−, ranging between 0 V and VREF centered about VREF/2 and driven 180° out of phase with IN−. |
| 4 | IN− | input | Differential negative analog input referenced to IN+, ranging between 0 V and VREF centered about VREF/2 and driven 180° out of phase with IN+. |
| 5 | GND | power_in | Power supply ground. |
| 6 | CNV | input | Convert input whose leading edge initiates conversion and selects chain or CS mode, enabling SDO when low in CS mode. |
| 7 | SDO | output | Serial data output carrying the conversion result, synchronized to SCK. |
| 8 | SCK | input | Serial data clock input that shifts out the conversion result when the part is selected. |
| 9 | SDI | input | Serial data input that selects chain mode if low at the CNV rising edge or CS mode if high, and serves as the daisy-chain data input with an 18 SCK cycle delay to SDO. |
| 10 | VIO | power_in | Input/output interface digital power, nominally at the host interface supply (1.8 V, 2.5 V, 3 V, or 5 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-10 |
| Category | Data Converters |
| 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 |
|---|---|---|---|---|---|---|---|
| Resolution | 18 | Bits | 3 | ||||
| Analog Input Voltage Range | VIN | 0 | V | IN+ − (IN−): −VREF to +VREF | 3 | ||
| Absolute Input Voltage | -0.1 | 0.1 | V | IN+, IN−; −0.1 V to VREF + 0.1 V | 3 | ||
| Common-Mode Input Range | -0.1 | 0.1 | V | IN+, IN−; VREF/2 −0.1 to VREF/2 +0.1 V | 3 | ||
| Analog Input CMRR | 65 | dB | fIN = 250 kHz | 3 | |||
| Leakage Current at 25°C | 1 | nA | Acquisition phase | 3 | |||
| Conversion Rate | 0 | 250 | kSPS | VDD = 4.5 V to 5.25 V | 3 | ||
| Conversion Rate | 0 | 180 | kSPS | VDD = 2.3 V to 4.5 V | 3 | ||
| Transient Response | 1.8 | µs | Full-scale step | 3 | |||
| No Missing Codes | 18 | Bits | 3 | ||||
| Integral Linearity Error | INL | -1.5 | 0.75 | 1.5 | LSB | typ is ±0.75 | 3 |
| Differential Linearity Error | DNL | -1 | 0.5 | 1.25 | LSB | typ is ±0.5 | 3 |
| Transition Noise | 0.75 | LSB | REF = VDD = 5 V | 3 | |||
| Gain Error | -40 | 2 | 40 | LSB | VDD = 4.5 V to 5.25 V; typ is ±2 | 3 | |
| Gain Error | -80 | 2 | 80 | LSB | VDD = 2.3 V to 4.5 V; typ is ±2 | 3 | |
| Gain Error Temperature Drift | 0.3 | ppm/°C | typ is ±0.3 | 3 | |||
| Zero Error | -0.8 | 0.1 | 0.8 | mV | VDD = 4.5 V to 5.25 V; typ is ±0.1 | 3 | |
| Zero Error | -3.5 | 0.7 | 3.5 | mV | VDD = 2.3 V to 4.5 V; typ is ±0.7 | 3 | |
| Zero Temperature Drift | 0.3 | ppm/°C | typ is ±0.3 | 3 | |||
| Power Supply Sensitivity | 0.25 | LSB | VDD = 5 V ± 5%; typ is ±0.25 | 3 | |||
| Dynamic Range | 101 | 102 | dB | VREF = 5 V | 3 | ||
| Oversampled Dynamic Range | 125 | dB | fIN = 1 kSPS | 3 | |||
| Signal-to-Noise | SNR | 100 | 101.5 | dB | fIN = 1 kHz, VREF = 5 V | 3 | |
| Signal-to-Noise | SNR | 95 | 96.5 | dB | fIN = 1 kHz, VREF = 2.5 V | 3 | |
| Spurious-Free Dynamic Range | SFDR | -125 | dB | fIN = 1 kHz, VREF = 5 V | 3 | ||
| Total Harmonic Distortion | THD | -125 | -118 | dB | fIN = 1 kHz, VREF = 5 V | 3 | |
| Signal-to-(Noise + Distortion) | SINAD | 100 | 101.5 | dB | fIN = 1 kHz, VREF = 5 V | 3 | |
| Signal-to-(Noise + Distortion) | SINAD | 95 | 96.5 | dB | fIN = 1 kHz, VREF = 2.5 V | 3 | |
| Intermodulation Distortion | 115 | dB | fIN1 = 21.4 kHz, fIN2 = 18.9 kHz, each tone −7 dB below full scale | 3 | |||
| Conversion Time | tCONV | 0.5 | 3.7 | µs | VDD = 2.3 V to 4.5 V; CNV rising edge to data available | 6 | |
| Acquisition Time | tACQ | 1.8 | µs | VDD = 2.3 V to 4.5 V | 6 | ||
| Time Between Conversions | tCYC | 5.5 | µs | VDD = 2.3 V to 4.5 V | 6 | ||
| CNV Pulse Width (CS Mode) | tCNVH | 10 | ns | VDD = 2.3 V to 4.5 V | 6 | ||
| SCK Period (CS Mode) | tSCK | 25 | ns | VDD = 2.3 V to 4.5 V | 6 | ||
| SCK Period (Chain Mode) | tSCK | 29 | ns | VIO Above 3 V | 6 | ||
| SCK Period (Chain Mode) | tSCK | 35 | ns | VIO Above 2.7 V | 6 | ||
| SCK Period (Chain Mode) | tSCK | 40 | ns | VIO Above 2.3 V | 6 | ||
| SCK Low Time | tSCKL | 12 | ns | VDD = 2.3 V to 4.5 V | 6 | ||
| SCK High Time | tSCKH | 12 | ns | VDD = 2.3 V to 4.5 V | 6 | ||
| SCK Falling Edge to Data Remains Valid | tHSDO | 5 | ns | VDD = 2.3 V to 4.5 V | 6 | ||
| SCK Falling Edge to Data Valid Delay | tDSDO | 24 | ns | VIO Above 3 V | 6 | ||
| SCK Falling Edge to Data Valid Delay | tDSDO | 30 | ns | VIO Above 2.7 V | 6 | ||
| SCK Falling Edge to Data Valid Delay | tDSDO | 35 | ns | VIO Above 2.3 V | 6 | ||
| CNV or SDI Low to SDO D17 MSB Valid (CS Mode) | tEN | 18 | ns | VIO Above 2.7 V | 6 | ||
| CNV or SDI Low to SDO D17 MSB Valid (CS Mode) | tEN | 22 | ns | VIO Above 2.3 V | 6 | ||
| CNV or SDI High or Last SCK Falling Edge to SDO High Impedance (CS Mode) | tDIS | 25 | ns | 6 | |||
| SDI Valid Setup Time from CNV Rising Edge (CS Mode) | tSSDICNV | 30 | ns | 6 | |||
| SDI Valid Hold Time from CNV Rising Edge (CS Mode) | tHSDICNV | 0 | ns | 6 | |||
| SCK Valid Setup Time from CNV Rising Edge (Chain Mode) | tSSCKCNV | 5 | ns | 6 | |||
| SCK Valid Hold Time from CNV Rising Edge (Chain Mode) | tHSCKCNV | 8 | ns | 6 | |||
| SDI Valid Setup Time from SCK Falling Edge (Chain Mode) | tSSDISCK | 8 | ns | 6 | |||
| SDI Valid Hold Time from SCK Falling Edge (Chain Mode) | tHSDISCK | 10 | ns | 6 | |||
| SDI High to SDO High (Chain Mode with Busy Indicator) | tDSDOSDI | 36 | ns | 6 | |||
| Analog Inputs (IN+, IN−) and REF Voltage | -0.3 | V | GND − 0.3 V to VDD + 0.3 V or ±130 mA | 7 | |||
| Supply Voltage VDD, VIO to GND | -0.3 | 7 | V | −0.3 V to +7 V | 7 | ||
| VDD to VIO | -7 | 7 | V | ±7 V | 7 | ||
| Digital Inputs to GND | -0.3 | V | −0.3 V to VIO + 0.3 V | 7 | |||
| Digital Outputs to GND | -0.3 | V | −0.3 V to VIO + 0.3 V | 7 | |||
| Storage Temperature Range | -65 | 150 | °C | 7 | |||
| Junction Temperature | 150 | °C | 7 | ||||
| Thermal Resistance Junction to Ambient | θJA | 200 | °C/W | 10-Lead MSOP | 7 | ||
| Thermal Resistance Junction to Case | θJC | 44 | °C/W | 10-Lead MSOP | 7 |
CAD (KiCad official)
- Symbol:
AD7691BRMZ - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files:
ad7691brmz-etched.step/ad7691brmz-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ad7691brmz.step/ad7691brmz.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
59c741beaa3a6250, retrieved 2026-10-31, 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).
# AD7691BRMZ
**Analog Devices** · Analog To Digital Converters (ADCs) · MSOP-10
AD7691BRMZ 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 from 0.5 V to VDD, referred to GND and to be decoupled closely with a 10 µF capacitor. |
| 2 | VDD | power_in | Power supply, 2.3 V to 5 V nominal operation (specified 2.3 V to 5.25 V). |
| 3 | IN+ | input | Differential positive analog input referenced to IN−, ranging between 0 V and VREF centered about VREF/2 and driven 180° out of phase with IN−. |
| 4 | IN− | input | Differential negative analog input referenced to IN+, ranging between 0 V and VREF centered about VREF/2 and driven 180° out of phase with IN+. |
| 5 | GND | power_in | Power supply ground. |
| 6 | CNV | input | Convert input whose leading edge initiates conversion and selects chain or CS mode, enabling SDO when low in CS mode. |
| 7 | SDO | output | Serial data output carrying the conversion result, synchronized to SCK. |
| 8 | SCK | input | Serial data clock input that shifts out the conversion result when the part is selected. |
| 9 | SDI | input | Serial data input that selects chain mode if low at the CNV rising edge or CS mode if high, and serves as the daisy-chain data input with an 18 SCK cycle delay to SDO. |
| 10 | VIO | power_in | Input/output interface digital power, nominally at the host interface supply (1.8 V, 2.5 V, 3 V, or 5 V). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-10 |
| Category | Data Converters |
| 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 |
|---|---|---|---|---|---|---|---|
| Resolution | | | 18 | | Bits | | 3 |
| Analog Input Voltage Range | VIN | 0 | | | V | IN+ − (IN−): −VREF to +VREF | 3 |
| Absolute Input Voltage | | -0.1 | | 0.1 | V | IN+, IN−; −0.1 V to VREF + 0.1 V | 3 |
| Common-Mode Input Range | | -0.1 | | 0.1 | V | IN+, IN−; VREF/2 −0.1 to VREF/2 +0.1 V | 3 |
| Analog Input CMRR | | | 65 | | dB | fIN = 250 kHz | 3 |
| Leakage Current at 25°C | | | 1 | | nA | Acquisition phase | 3 |
| Conversion Rate | | 0 | | 250 | kSPS | VDD = 4.5 V to 5.25 V | 3 |
| Conversion Rate | | 0 | | 180 | kSPS | VDD = 2.3 V to 4.5 V | 3 |
| Transient Response | | | 1.8 | | µs | Full-scale step | 3 |
| No Missing Codes | | 18 | | | Bits | | 3 |
| Integral Linearity Error | INL | -1.5 | 0.75 | 1.5 | LSB | typ is ±0.75 | 3 |
| Differential Linearity Error | DNL | -1 | 0.5 | 1.25 | LSB | typ is ±0.5 | 3 |
| Transition Noise | | | 0.75 | | LSB | REF = VDD = 5 V | 3 |
| Gain Error | | -40 | 2 | 40 | LSB | VDD = 4.5 V to 5.25 V; typ is ±2 | 3 |
| Gain Error | | -80 | 2 | 80 | LSB | VDD = 2.3 V to 4.5 V; typ is ±2 | 3 |
| Gain Error Temperature Drift | | | 0.3 | | ppm/°C | typ is ±0.3 | 3 |
| Zero Error | | -0.8 | 0.1 | 0.8 | mV | VDD = 4.5 V to 5.25 V; typ is ±0.1 | 3 |
| Zero Error | | -3.5 | 0.7 | 3.5 | mV | VDD = 2.3 V to 4.5 V; typ is ±0.7 | 3 |
| Zero Temperature Drift | | | 0.3 | | ppm/°C | typ is ±0.3 | 3 |
| Power Supply Sensitivity | | | 0.25 | | LSB | VDD = 5 V ± 5%; typ is ±0.25 | 3 |
| Dynamic Range | | 101 | 102 | | dB | VREF = 5 V | 3 |
| Oversampled Dynamic Range | | | 125 | | dB | fIN = 1 kSPS | 3 |
| Signal-to-Noise | SNR | 100 | 101.5 | | dB | fIN = 1 kHz, VREF = 5 V | 3 |
| Signal-to-Noise | SNR | 95 | 96.5 | | dB | fIN = 1 kHz, VREF = 2.5 V | 3 |
| Spurious-Free Dynamic Range | SFDR | | -125 | | dB | fIN = 1 kHz, VREF = 5 V | 3 |
| Total Harmonic Distortion | THD | | -125 | -118 | dB | fIN = 1 kHz, VREF = 5 V | 3 |
| Signal-to-(Noise + Distortion) | SINAD | 100 | 101.5 | | dB | fIN = 1 kHz, VREF = 5 V | 3 |
| Signal-to-(Noise + Distortion) | SINAD | 95 | 96.5 | | dB | fIN = 1 kHz, VREF = 2.5 V | 3 |
| Intermodulation Distortion | | | 115 | | dB | fIN1 = 21.4 kHz, fIN2 = 18.9 kHz, each tone −7 dB below full scale | 3 |
| Conversion Time | tCONV | 0.5 | | 3.7 | µs | VDD = 2.3 V to 4.5 V; CNV rising edge to data available | 6 |
| Acquisition Time | tACQ | 1.8 | | | µs | VDD = 2.3 V to 4.5 V | 6 |
| Time Between Conversions | tCYC | 5.5 | | | µs | VDD = 2.3 V to 4.5 V | 6 |
| CNV Pulse Width (CS Mode) | tCNVH | 10 | | | ns | VDD = 2.3 V to 4.5 V | 6 |
| SCK Period (CS Mode) | tSCK | 25 | | | ns | VDD = 2.3 V to 4.5 V | 6 |
| SCK Period (Chain Mode) | tSCK | 29 | | | ns | VIO Above 3 V | 6 |
| SCK Period (Chain Mode) | tSCK | 35 | | | ns | VIO Above 2.7 V | 6 |
| SCK Period (Chain Mode) | tSCK | 40 | | | ns | VIO Above 2.3 V | 6 |
| SCK Low Time | tSCKL | 12 | | | ns | VDD = 2.3 V to 4.5 V | 6 |
| SCK High Time | tSCKH | 12 | | | ns | VDD = 2.3 V to 4.5 V | 6 |
| SCK Falling Edge to Data Remains Valid | tHSDO | 5 | | | ns | VDD = 2.3 V to 4.5 V | 6 |
| SCK Falling Edge to Data Valid Delay | tDSDO | | | 24 | ns | VIO Above 3 V | 6 |
| SCK Falling Edge to Data Valid Delay | tDSDO | | | 30 | ns | VIO Above 2.7 V | 6 |
| SCK Falling Edge to Data Valid Delay | tDSDO | | | 35 | ns | VIO Above 2.3 V | 6 |
| CNV or SDI Low to SDO D17 MSB Valid (CS Mode) | tEN | | | 18 | ns | VIO Above 2.7 V | 6 |
| CNV or SDI Low to SDO D17 MSB Valid (CS Mode) | tEN | | | 22 | ns | VIO Above 2.3 V | 6 |
| CNV or SDI High or Last SCK Falling Edge to SDO High Impedance (CS Mode) | tDIS | | | 25 | ns | | 6 |
| SDI Valid Setup Time from CNV Rising Edge (CS Mode) | tSSDICNV | 30 | | | ns | | 6 |
| SDI Valid Hold Time from CNV Rising Edge (CS Mode) | tHSDICNV | 0 | | | ns | | 6 |
| SCK Valid Setup Time from CNV Rising Edge (Chain Mode) | tSSCKCNV | 5 | | | ns | | 6 |
| SCK Valid Hold Time from CNV Rising Edge (Chain Mode) | tHSCKCNV | 8 | | | ns | | 6 |
| SDI Valid Setup Time from SCK Falling Edge (Chain Mode) | tSSDISCK | 8 | | | ns | | 6 |
| SDI Valid Hold Time from SCK Falling Edge (Chain Mode) | tHSDISCK | 10 | | | ns | | 6 |
| SDI High to SDO High (Chain Mode with Busy Indicator) | tDSDOSDI | | | 36 | ns | | 6 |
| Analog Inputs (IN+, IN−) and REF Voltage | | -0.3 | | | V | GND − 0.3 V to VDD + 0.3 V or ±130 mA | 7 |
| Supply Voltage VDD, VIO to GND | | -0.3 | | 7 | V | −0.3 V to +7 V | 7 |
| VDD to VIO | | -7 | | 7 | V | ±7 V | 7 |
| Digital Inputs to GND | | -0.3 | | | V | −0.3 V to VIO + 0.3 V | 7 |
| Digital Outputs to GND | | -0.3 | | | V | −0.3 V to VIO + 0.3 V | 7 |
| Storage Temperature Range | | -65 | | 150 | °C | | 7 |
| Junction Temperature | | | | 150 | °C | | 7 |
| Thermal Resistance Junction to Ambient | θJA | | 200 | | °C/W | 10-Lead MSOP | 7 |
| Thermal Resistance Junction to Case | θJC | | 44 | | °C/W | 10-Lead MSOP | 7 |
## CAD (KiCad official)
- Symbol: `AD7691BRMZ`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `ad7691brmz-etched.step` / `ad7691brmz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ad7691brmz.step` / `ad7691brmz.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/AD7691.pdf) (28 pp, sha256 `59c741beaa3a6250`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/ad7691brmz-datasheet.pdf)