AD7390BCPZ - 12-Bit Serial DAC, 3V Supply | Analog Devices
MPN: AD7390BCPZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.5 | $45.00 |
| 100 | $3.8 | $380.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.9 | $2,900.00 |
Drop-in alternatives for AD7390BCPZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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AD7391BCPZ
✅ Drop-In✓ In Stock
$2.88 / Unit
View Datasheet →AD7390BCPZ Maximum Ratings & Electrical Characteristics
| Resolution | 12 bits |
| Number of Channels | 1 |
| Supply Voltage Range | +2.7 V to +5.5 V |
| Supply Current | < 100 µA |
| Output Type | Voltage - Buffered |
| Output Voltage Range | 0 V to VREF |
| Settling Time | 10 µs (typical) |
| Interface | SPI, QSPI, MICROWIRE |
| Reference Type | External |
| Operating Temperature Range | -40°C to +85°C |
| Package | 8-Lead LFCSP (3mm x 3mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Power-On Reset | Output to Zero Scale |
AD7390BCPZ Pin Configuration
| Pin 1 | VOUT — Analog output voltage |
| Pin 2 | GND — Ground |
| Pin 3 | VDD — Positive supply voltage |
| Pin 4 | VREF — Reference voltage input |
| Pin 5 | SYNC — Active low chip select |
| Pin 6 | SCLK — Serial clock input |
| Pin 7 | SDIN — Serial data input |
| Pin 8 | 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
AD7390BCPZ is suitable for 6 applications: Portable Instrumentation, Industrial Process Control, Automotive Electronics, Communication Systems, Medical Devices, Test and Measurement.
Portable Instrumentation
The AD7390BCPZ's ultra-low supply current of less than 100 µA and wide supply range of +2.7 V to +5.5 V make it ideal for battery-powered instruments. It provides precise analog output for sensor calibration and offset adjustment while extending battery life. The small 8-lead LFCSP package saves board space in handheld devices. Its serial interface minimizes pin count, simplifying connection to low-power microcontrollers.
Recommended
Industrial Process Control
In industrial environments, the AD7390BCPZ provides accurate analog outputs for controlling valves, actuators, and setpoints. Its industrial temperature range of -40°C to +85°C ensures reliable operation in harsh conditions. The 12-bit resolution allows fine adjustments, and the serial interface enables easy integration with PLCs and industrial microcontrollers. The low power consumption reduces heat generation in control cabinets.
Recommended
Automotive Electronics
The AD7390BCPZ is suitable for automotive applications such as sensor calibration and battery management systems. Its wide supply voltage range accommodates automotive power rails that vary with load and temperature. The low power consumption is beneficial for always-on modules. The device's small footprint and serial interface simplify PCB design in space-constrained automotive ECUs.
Recommended
Communication Systems
In communication equipment, the AD7390BCPZ can be used for bias control and gain adjustment in RF and baseband circuits. Its fast settling time of 10 µs supports dynamic adjustments. The low noise and high accuracy ensure minimal signal distortion. The serial interface allows easy configuration via a host processor, and the small package is ideal for dense circuit boards.
Recommended
Medical Devices
The AD7390BCPZ is used in medical devices such as patient monitors and diagnostic equipment for precise voltage generation. Its low power consumption is critical for battery-operated portable medical devices. The wide operating temperature range ensures reliability in clinical environments. The small package and serial interface facilitate compact, low-cost designs.
Recommended
Test and Measurement
The AD7390BCPZ is ideal for test equipment requiring programmable voltage references and calibration sources. Its 12-bit resolution and low drift provide accurate and stable outputs. The serial interface enables remote programming, and the low power consumption reduces thermal drift. The compact package allows high channel density in multi-channel instruments.
Recommended
Recommended Products Summary
Engineering reference data for AD7390BCPZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD7391BCPZ | AD5300BRTZ | DAC121S101CIMK | MCP4921-E/SN |
|---|---|---|---|---|---|
| Package | 8-Lead LFCSP | 8-Lead LFCSP | SOT-23-6 | SOT-23-6 | SOIC-8 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Microchip Technology |
| Resolution | 12 bits | 10 bits | 8 bits | 12 bits | 12 bits |
| Supply Voltage Range | +2.7 V to +5.5 V | +2.7 V to +5.5 V | +2.7 V to +5.5 V | +2.7 V to +5.5 V | +2.7 V to +5.5 V |
| Supply Current | < 100 µA | < 100 µA | 140 µA | 170 µA | 350 µA |
| Settling Time | 10 µs | 10 µs | 8 µs | 10 µs | 4.5 µs |
| Interface | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI | SPI | SPI |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C |
Key Differentiators
- Ultra-low supply current of less than 100 µA (vs MCP4921-E/SN)
- Wide supply voltage range of +2.7 V to +5.5 V (vs DAC121S101CIMK)
- Compact 8-lead LFCSP package (vs AD5300BRTZ)
Design Notes
The AD7390BCPZ operates from a single supply of +2.7 V to +5.5 V. To achieve full 12-bit accuracy, ensure the supply is clean and well-decoupled. Place a 0.1 µF ceramic capacitor close to the VDD pin and a 1 µF tantalum capacitor nearby. The reference voltage (VREF) should also be decoupled with a 0.1 µF capacitor to minimize noise.
For optimal performance, keep the analog output trace short and away from digital signals. Use a ground plane to minimize noise coupling. The LFCSP package has an exposed pad that should be soldered to the PCB ground for thermal and electrical performance. Ensure proper solder mask openings for the pad.
One common mistake is driving the output with a load that exceeds the buffer's capability. The output can drive up to 100 pF capacitive load; for larger loads, use an external buffer. Also, ensure the serial clock is clean and free of glitches to avoid data corruption. The SYNC pin must be held low during data transfer and brought high after the last bit.
Compliance Information
RoHS compliant and lead-free per Analog Devices product page. Other compliance data not specified in provided sources.
