AD7792BRUZ - 16-Bit Sigma-Delta ADC with PGA & Reference | Analog Devices
MPN: AD7792BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.24 | $8.24 |
| 10 | $7.58 | $75.80 |
| 100 | $6.91 | $691.00 |
| 500 | $6.24 | $3,120.00 |
| 1,000 | $5.57 | $5,570.00 |
Drop-in alternatives for AD7792BRUZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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AD7793BRUZ
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View Datasheet →AD7794BRUZ
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View Datasheet →AD7792BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 Bit |
| Number of Inputs | 3 Differential |
| Sampling Rate | 470 SPS |
| Input Type | Differential |
| Data Interface | SPI |
| Architecture | Sigma-Delta |
| Reference Type | Internal, External |
| Voltage - Supply, Analog | 2.7V to 5.25V |
| Voltage - Supply, Digital | 2.7V to 5.25V |
| Features | PGA, Temperature Sensor |
| Operating Temperature Range | -40°C to +105°C |
| Package / Case | 16-TSSOP |
| Mounting Type | Surface Mount |
| Number of Bits | 16 |
| Number of A/D Converters | 1 |
| Reference Voltage | 2.5V (internal) |
| Power Dissipation | 500 µA typical |
AD7792BRUZ Pin Configuration
| Pin 1 | SCLK — Serial clock input |
| Pin 2 | DIN — Serial data input |
| Pin 3 | DOUT/RDY — Serial data output / ready |
| Pin 4 | CS — Chip select |
| Pin 5 | GND — Ground |
| Pin 6 | AVDD — Analog power supply |
| Pin 7 | AIN1(+) — Analog input 1 positive |
| Pin 8 | AIN1(-) — Analog input 1 negative |
| Pin 9 | AIN2(+) — Analog input 2 positive |
| Pin 10 | AIN2(-) — Analog input 2 negative |
| Pin 11 | AIN3(+) — Analog input 3 positive |
| Pin 12 | AIN3(-) — Analog input 3 negative |
| Pin 13 | REFIN(+) — Reference input positive |
| Pin 14 | REFIN(-) — Reference input negative |
| Pin 15 | DVDD — Digital power supply |
| Pin 16 | SYNC — Synchronization input |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD7792BRUZ is suitable for 6 applications: Temperature Measurement, Pressure Measurement, Weigh Scale, Industrial Process Control, Portable Instrumentation, Medical Monitoring.
Temperature Measurement
The AD7792BRUZ is ideal for thermocouple and RTD temperature measurement due to its low noise, PGA, and internal reference. The on-chip excitation current sources simplify sensor excitation, and the burnout currents detect sensor faults. With 16-bit resolution and 470 SPS, it provides accurate temperature readings for industrial process control and instrumentation. The low power consumption makes it suitable for portable temperature loggers.
Recommended
Pressure Measurement
The AD7792BRUZ is well-suited for pressure measurement using strain gauge bridges. The PGA with gains up to 128 amplifies the small bridge output, and the differential inputs reject common-mode noise. The internal reference provides a stable excitation voltage for the bridge. With 16-bit resolution, it can detect minute pressure changes, making it ideal for industrial pressure transmitters and medical devices.
Recommended
Weigh Scale
The AD7792BRUZ is commonly used in weigh scale applications due to its high resolution and low noise. The PGA amplifies the load cell output, and the internal reference provides a stable excitation. The sigma-delta architecture ensures accurate weight measurement even with slow load changes. The low power consumption is beneficial for battery-powered scales.
Recommended
Industrial Process Control
The AD7792BRUZ is suitable for industrial process control systems that require precise analog-to-digital conversion of sensor signals. Its 16-bit resolution and 470 SPS sampling rate allow accurate monitoring of temperature, pressure, and flow. The SPI interface simplifies integration with microcontrollers, and the wide supply voltage range accommodates various industrial power rails.
Recommended
Portable Instrumentation
The AD7792BRUZ is ideal for portable instrumentation due to its low power consumption of 500 µA. It can operate from a 3V battery, making it suitable for handheld multimeters, data loggers, and field analyzers. The small TSSOP package saves board space, and the internal reference reduces external component count.
Recommended
Medical Monitoring
The AD7792BRUZ is used in medical monitoring devices such as patient monitors and diagnostic equipment. Its low noise and high resolution enable accurate measurement of physiological signals like temperature and pressure. The low power consumption is critical for battery-operated devices, and the small package allows compact designs.
Recommended
Recommended Products Summary
Engineering reference data for AD7792BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7793BRUZ | AD7794BRUZ | AD7795BRUZ |
|---|---|---|---|---|
| Resolution | 16 Bit | 24 Bit | 24 Bit | 16 Bit |
| Number of Inputs | 3 Differential | 3 Differential | 6 Differential | 6 Differential |
| Sampling Rate | 470 SPS | 470 SPS | 470 SPS | 470 SPS |
| Supply Voltage | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V |
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Internal Reference | Yes | Yes | Yes | Yes |
| PGA Gain | 1 to 128 | 1 to 128 | 1 to 128 | 1 to 128 |
Key Differentiators
- 16-bit resolution with 470 SPS (vs AD7793BRUZ (24-bit))
- Three differential inputs (vs AD7794BRUZ (6 inputs))
- Low power consumption (vs AD7190BRUZ (higher speed))
Design Notes
Decouple the AVDD and DVDD pins with 10µF and 0.1µF capacitors placed close to the pins. Use separate analog and digital ground planes to minimize noise coupling. The AD7792BRUZ operates from 2.7V to 5.25V, so ensure the supply is clean and stable.
Place the reference decoupling capacitor (0.1µF) close to the REFIN pins. For best noise performance, use a star-ground topology and avoid routing digital signals near the analog inputs. The TSSOP package has a thermal pad that should be connected to ground for improved thermal performance.
Ensure the SPI lines are not driven above DVDD to avoid latch-up. The SYNC pin can be used to synchronize multiple ADCs, but it must be tied high if unused. Also, the internal reference has a typical drift of 5 ppm/°C, so for high-accuracy applications, consider using an external reference.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
