Overview
The AD5372BCPZ-RL7, produced by Analog Devices Inc., is a 32-channel, 16-bit digital-to-analog converter (DAC) integrated into a single 64-lead LQFP package. This device is part of the AD5372/AD5373 series, offering high channel count and precision for various industrial and instrumentation applications. The AD5372 is designed to provide buffered voltage outputs with a maximum output voltage span of 4 × VREF (up to 12 V) and nominal output voltage ranges from -4 V to +8 V. It features a high-speed serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, supporting clock speeds up to 50 MHz.
Key Specifications
| Parameter | Value | Unit | Test Conditions |
|---|---|---|---|
| Resolution | 16 | Bits | |
| Output Channels | 32 | ||
| Nominal Output Span | 4 × VREF (up to 12 V) | V | |
| Integral Nonlinearity (INL) | ±4 | LSB max | TMIN to TMAX |
| Differential Nonlinearity (DNL) | ±1 | LSB max | TMIN to TMAX |
| Load Current | ±1 | mA max | |
| Capacitive Load | 2200 | pF max | |
| DC Output Impedance | 0.5 | Ω max | |
| Digital Input High Voltage | 1.7 (DVCC = 2.5 V to 3.6 V), 2.0 (DVCC = 3.6 V to 5.5 V) | V | |
| Digital Input Low Voltage | 0.8 | V | DVCC = 2.5 V to 5.5 V |
| Supply Voltage Range | VSS: -16.5 V to -4.5 V, VDD: 9 V to 16.5 V | V | |
| Output Amplifier Headroom | 1.4 V | V | Operating with a load current of 1 mA |
| Serial Interface Clock Speed | Up to 50 MHz | MHz |
Key Features
- 32-channel DAC with 16-bit resolution
- Buffered voltage outputs with a maximum output voltage span of 4 × VREF (up to 12 V)
- Nominal output voltage range from -4 V to +8 V
- High-speed serial interface compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards
- Programmable gain and offset adjust registers for each channel
- Channel grouping and addressing features
- Thermal shutdown function
- Digital reset (RESET) and clear function to user-defined SIGGNDx
- Simultaneous update of DAC outputs via LDAC input
Applications
- Level setting in automatic test equipment (ATE)
- Variable optical attenuators (VOA) and optical switches
- Industrial control systems
- Instrumentation
Q & A
- What is the resolution of the AD5372 DAC?
The AD5372 has a resolution of 16 bits. - How many output channels does the AD5372 have?
The AD5372 has 32 output channels. - What is the nominal output voltage range of the AD5372?
The nominal output voltage range is from -4 V to +8 V. - What serial interface standards is the AD5372 compatible with?
The AD5372 is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards. - What is the maximum clock speed of the serial interface?
The serial interface can handle clock speeds up to 50 MHz. - Can the DAC outputs be updated simultaneously?
Yes, all the outputs can be updated simultaneously by taking the LDAC input low. - What is the supply voltage range for the AD5372?
The supply voltage range is VSS: -16.5 V to -4.5 V and VDD: 9 V to 16.5 V. - What is the output amplifier headroom requirement?
The output amplifier headroom requirement is 1.4 V operating with a load current of 1 mA. - Does the AD5372 have programmable gain and offset features?
Yes, each channel has programmable gain and offset adjust registers. - What are some common applications of the AD5372?
Common applications include level setting in ATE, variable optical attenuators, optical switches, industrial control systems, and instrumentation.
