Overview
The AD5370BSTZ, produced by Analog Devices Inc., is a 40-channel, 16-bit, serial input, voltage output Digital-to-Analog Converter (DAC). This device is designed to provide high precision and flexibility, making it suitable for a wide range of applications. The AD5370BSTZ features a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, allowing for clock speeds up to 50 MHz. It offers buffered voltage outputs with a span that is 4× the reference voltage, and each DAC channel can be independently trimmed for gain and offset to remove errors.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Comments |
|---|---|---|---|---|---|
| Resolution | 16 bits | ||||
| Number of D/A Converters | 40 | ||||
| Output Channels | 40 | ||||
| Linearity Error (LSB) | ±4 | LSB | |||
| Gain Error (FSR) | 0.1% | % FSR | Before calibration | ||
| VDD Supply Voltage | 9 V | 16.5 V | V | ||
| VSS Supply Voltage | -16.5 V | -4.5 V | V | ||
| DVCC Digital Supply Voltage | 2.5 V | 5.5 V | V | ||
| Operating Temperature | -40°C | 85°C | °C | ||
| Package Type | 64-LQFP |
Key Features
- High-Speed Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, with clock speeds up to 50 MHz.
- Buffered Voltage Outputs: Outputs span 4× the reference voltage, with each channel independently trimmed for gain and offset.
- Channel Grouping and Addressing: Channels can be grouped and addressed for flexible control.
- System Calibration: User-programmable offset and gain for each DAC channel.
- Thermal Shutdown Function: Protects the device from overheating.
- Digital Reset and Clear Function: Allows for resetting and clearing the device to user-defined SIGGNDx levels.
- Simultaneous Update of DAC Outputs: All outputs can be updated simultaneously via the LDAC input.
Applications
- Level Setting in Automatic Test Equipment (ATE): Precise voltage control for testing and calibration.
- Variable Optical Attenuators (VOA): Dynamic control of optical signal levels.
- Optical Switches: High-precision voltage control for optical switching applications.
- Industrial Control Systems: Reliable and precise voltage output for industrial automation.
- Instrumentation: Accurate voltage generation for various measurement and instrumentation applications.
Q & A
- What is the resolution of the AD5370BSTZ DAC?
The AD5370BSTZ has a resolution of 16 bits.
- How many D/A converters does the AD5370BSTZ contain?
The AD5370BSTZ contains 40 D/A converters.
- What is the operating temperature range of the AD5370BSTZ?
The operating temperature range is from -40°C to 85°C.
- What types of serial interfaces are supported by the AD5370BSTZ?
The AD5370BSTZ supports SPI, QSPI, MICROWIRE, and DSP interface standards.
- Can the DAC outputs be updated simultaneously?
- What is the gain error of the AD5370BSTZ before calibration?
The gain error is 0.1% FSR before calibration.
- What is the linearity error of the AD5370BSTZ?
The linearity error is ±4 LSB.
- What are the supply voltage ranges for VDD, VSS, and DVCC?
VDD: 9 V to 16.5 V, VSS: -16.5 V to -4.5 V, DVCC: 2.5 V to 5.5 V.
- What package types are available for the AD5370BSTZ?
The AD5370BSTZ is available in a 64-lead LQFP package.
- What are some common applications of the AD5370BSTZ?
Common applications include level setting in ATE, variable optical attenuators, optical switches, industrial control systems, and instrumentation.
