Overview
The AD5373BSTZ is a 32-channel, 14-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This device is part of the AD5372/AD5373 family and is housed in a 64-lead LQFP package. It features a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, supporting clock speeds up to 50 MHz. The AD5373 provides buffered voltage outputs with a nominal span of 4× the reference voltage, and each DAC can be independently trimmed for gain and offset to remove errors. The device is divided into four groups of eight DACs, with two offset DACs allowing the output range of the groups to be adjusted.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Channels | 32 | - | - |
| Resolution | 14 bits | - | - |
| Output Type | Voltage - Buffered | - | - |
| Supply Voltage (VDD) | 9 V to 16.5 V | V | - |
| Supply Voltage (VSS) | -16.5 V to -4.5 V | V | - |
| Digital Supply Voltage (DVCC) | 2.5 V to 5.5 V | V | - |
| Integral Nonlinearity (INL) | ±1 LSB max | LSB | - |
| Differential Nonlinearity (DNL) | ±1 LSB max | LSB | - |
| Settling Time | 30 µs | µs | - |
| Operating Temperature | -40°C to +85°C | °C | - |
| Package Type | 64-lead LQFP | - | - |
Key Features
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, supporting clock speeds up to 50 MHz.
- 32-channel, 14-bit digital-to-analog conversion with buffered voltage outputs.
- Independent gain and offset trimming for each DAC to remove errors.
- Device divided into four groups of eight DACs with two offset DACs for group output range adjustment.
- System calibration function allowing user-programmable offset and gain.
- Channel grouping and addressing features.
- Thermal shutdown function.
- Digital reset (RESET) and clear function to user-defined SIGGNDx.
- Simultaneous update of DAC outputs.
Applications
- Level setting in automatic test equipment (ATE).
- Variable optical attenuators (VOA).
- Optical switches.
- Industrial control systems.
- Instrumentation.
Q & A
- What is the resolution of the AD5373BSTZ DAC?
The AD5373BSTZ has a resolution of 14 bits.
- How many channels does the AD5373BSTZ have?
The AD5373BSTZ has 32 channels.
- What is the supply voltage range for VDD and VSS?
The supply voltage range for VDD is 9 V to 16.5 V, and for VSS it is -16.5 V to -4.5 V.
- What is the digital supply voltage range for DVCC?
The digital supply voltage range for DVCC is 2.5 V to 5.5 V.
- What is the maximum clock speed supported by the serial interface?
The serial interface supports clock speeds up to 50 MHz.
- Can the DAC outputs be updated simultaneously?
- What is the operating temperature range of the AD5373BSTZ?
The operating temperature range is -40°C to +85°C.
- What type of package does the AD5373BSTZ come in?
The AD5373BSTZ comes in a 64-lead LQFP package.
- Does the AD5373BSTZ support independent gain and offset trimming for each DAC?
- What are some common applications of the AD5373BSTZ?
