AD7780BRUZ - 24-Bit Sigma-Delta ADC, 330µA | Analog Devices
MPN: AD7780BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.8 | $78.00 |
| 100 | $6.9 | $690.00 |
| 500 | $6.2 | $3,100.00 |
| 1,000 | $5.6 | $5,600.00 |
Drop-in alternatives for AD7780BRUZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD7780BRZ
✅ Drop-In📋 Reference alternative (not in catalog)
AD7781BRUZ
✅ Drop-In✓ In Stock
$5.06 / Unit
View Datasheet →AD7172-2BRUZ-RL7
✅ Drop-In✓ In Stock
$10.6591 / Unit
View Datasheet →AD7780BRUZ-REEL
✅ Drop-In📋 Reference alternative (not in catalog)
AD7783BRU
✅ Drop-In📋 Reference alternative (not in catalog)
AD7780BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 24 Bit |
| Number of Channels | 1 |
| Sampling Rate | 16.7 SPS |
| Input Type | Differential |
| Interface | 3-Wire Serial |
| Supply Voltage | 2.7 V to 5.25 V |
| Current Consumption | 330 µA |
| Programmable Gain | 1, 2, 4, 8, 16, 32, 64, 128 |
| Package | 16-TSSOP |
| Operating Temperature | -40°C to +105°C |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Number of Inputs | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
AD7780BRUZ Pin Configuration
| Pin 1 | AVDD — Analog supply voltage |
| Pin 2 | DVDD — Digital supply voltage |
| Pin 3 | GND — Ground |
| Pin 4 | REF+ — Positive reference input |
| Pin 5 | REF- — Negative reference input |
| Pin 6 | AIN+ — Positive analog input |
| Pin 7 | AIN- — Negative analog input |
| Pin 8 | SCLK — Serial clock input |
| Pin 9 | DOUT/RDY — Data output/ready |
| Pin 10 | DIN — Data input |
| Pin 11 | CS — Chip select |
| Pin 12 | GND — Ground |
| Pin 13 | PDRST — Power-down reset |
| Pin 14 | SYNC — Synchronization input |
| Pin 15 | NC — No connect |
| Pin 16 | NC — No connect |
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
AD7780BRUZ is suitable for 6 applications: Weigh Scales, Strain Gage Transducers, Pressure Sensors, Portable Instrumentation, Industrial Process Control, Medical Monitoring.
Weigh Scales
The AD7780BRUZ is ideal for weigh scales due to its 24-bit resolution and low noise PGA. It provides accurate weight measurements with minimal power consumption, making it suitable for portable and battery-operated scales. The on-chip oscillator reduces external component count, simplifying design.
Recommended
Strain Gage Transducers
The AD7780BRUZ is designed for strain gage transducers, offering high resolution and low noise to accurately measure small changes in resistance. Its low power consumption is ideal for remote or battery-powered sensing applications. The programmable gain allows adaptation to various sensor sensitivities.
Recommended
Pressure Sensors
The AD7780BRUZ is well-suited for pressure sensors, providing 24-bit resolution and a low noise PGA to capture precise pressure readings. Its 330 µA current consumption extends battery life in portable devices. The device's sigma-delta architecture ensures excellent noise performance for industrial applications.
Recommended
Portable Instrumentation
The AD7780BRUZ is perfect for portable instrumentation due to its low power consumption and high resolution. It enables accurate measurements in battery-operated devices such as handheld meters and data loggers. The small TSSOP package saves board space, and the on-chip oscillator reduces external components.
Recommended
Industrial Process Control
The AD7780BRUZ is suitable for industrial process control, offering high precision and low power for monitoring sensors in harsh environments. Its wide supply voltage range and temperature range make it robust for industrial use. The device's digital filter provides 50 Hz and 60 Hz rejection, improving measurement accuracy.
Recommended
Medical Monitoring
The AD7780BRUZ is used in medical monitoring devices such as patient scales and pressure monitors. Its low power consumption and high resolution ensure accurate readings while extending battery life. The device's small package and integrated features make it ideal for compact medical devices.
Recommended
Recommended Products Summary
Engineering reference data for AD7780BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7780BRZ | AD7781BRUZ | AD7172-2BRUZ |
|---|---|---|---|---|
| Package | 16-TSSOP | 16-SOIC | 16-TSSOP | 16-TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 24 Bit | 24 Bit | 24 Bit | 24 Bit |
| Sampling Rate | 16.7 SPS | 16.7 SPS | 16.7 SPS | 250 kSPS |
| Supply Voltage | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V | 2V to 5.5V |
| Current Consumption | 330 µA | 330 µA | 330 µA | 1 mA |
| Programmable Gain | 1 to 128 | 1 to 128 | 1 to 128 | 1 to 128 |
| Interface | 3-Wire Serial | 3-Wire Serial | 3-Wire Serial | SPI |
Key Differentiators
- Ultra-low power consumption of 330 µA (vs AD7172-2BRUZ)
- Integrated PGA and oscillator (vs AD7780BRZ)
- Small TSSOP package (vs AD7780BRZ)
Design Notes
Decouple the AVDD and DVDD pins with 10 µF and 0.1 µF capacitors placed close to the device. Use separate analog and digital ground planes to minimize noise coupling. The AD7780 consumes only 330 µA, but ensure the supply can handle transient currents during conversions.
Place the reference decoupling capacitors close to the REF+ and REF- pins. Use a low-noise reference voltage source to achieve the specified performance. Route analog inputs away from digital traces to prevent interference.
Ensure the external reference voltage is within the specified range and is stable. The AD7780 requires a clean reference for accurate conversions. Also, avoid exceeding the absolute maximum ratings on any pin to prevent damage.
Compliance Information
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
