Overview
The AD5330BRU is a single 8-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. This component operates from a 2.5 V to 5.5 V power supply and is known for its low power consumption, making it suitable for a variety of applications, including portable battery-powered instruments and industrial process control. The AD5330BRU is packaged in a 20-lead Thin Shrink Small Outline Package (TSSOP) and features a parallel interface for data input.
Key Specifications
| Parameter | Value | Description |
|---|---|---|
| Number of Bits | 8 | Resolution of the DAC |
| Power Supply | 2.5 V to 5.5 V | Operating voltage range |
| Current Consumption | 115 μA @ 3 V, 140 μA @ 5 V | Typical current consumption at different supply voltages |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | Current consumption in power-down mode |
| Settling Time | 6 μs | Time required for the output to settle to within 1/2 LSB of the final value |
| Output Range | 0 V to VREF or 0 V to 2 × VREF | Configurable output voltage range based on the GAIN pin setting |
| Temperature Range | −40°C to +105°C | Operating temperature range |
| Package | 20-lead TSSOP | Physical package type |
| Differential Nonlinearity (DNL) | ±0.2 LSB | Maximum deviation of the actual analog output from the ideal output |
| Offset Error | ±0.4 % of FSR | Maximum offset error from the ideal zero point |
| Gain Error | ±0.15 % of FSR | Maximum gain error from the ideal full-scale value |
Key Features
- Low Power Operation: Consumes 115 μA at 3 V and 140 μA at 5 V, with a power-down mode reducing current to 80 nA at 3 V and 200 nA at 5 V.
- Double-Buffered Input Logic: Allows simultaneous update of multiple DACs using the LDAC pin.
- Buffered/Unbuffered Reference Input: Options for buffered or unbuffered reference input based on the BUF pin setting.
- On-Chip Rail-to-Rail Output Buffer: The output buffer can drive the output to both supply rails.
- Guaranteed Monotonic by Design: Ensures that the output voltage increases monotonically with the digital input code.
- Power-On Reset to 0 V: The DAC output resets to 0 V upon power-on.
- Asynchronous CLR Facility: An active low CLR input clears all input registers and DAC registers to zero.
Applications
- Portable Battery-Powered Instruments: Suitable for devices requiring low power consumption and precise analog outputs.
- Digital Gain and Offset Adjustment: Can be used to adjust gain and offset in digital systems.
- Programmable Voltage and Current Sources: Useful in applications where programmable voltage or current sources are needed.
- Programmable Attenuators: Can be used in signal processing applications requiring programmable attenuation.
- Industrial Process Control: Suitable for industrial control systems that require precise analog control signals.
Q & A
- What is the resolution of the AD5330BRU DAC?
The AD5330BRU is an 8-bit DAC, meaning it has a resolution of 256 discrete output levels.
- What is the operating voltage range of the AD5330BRU?
The AD5330BRU operates from a 2.5 V to 5.5 V power supply.
- How much current does the AD5330BRU consume in normal operation?
The AD5330BRU consumes 115 μA at 3 V and 140 μA at 5 V.
- What is the settling time of the AD5330BRU?
The settling time of the AD5330BRU is 6 μs.
- Can the AD5330BRU be powered down to reduce current consumption?
Yes, the AD5330BRU has a power-down mode that reduces current consumption to 80 nA at 3 V and 200 nA at 5 V.
- What is the temperature range of the AD5330BRU?
The operating temperature range of the AD5330BRU is −40°C to +105°C.
- What type of package does the AD5330BRU come in?
The AD5330BRU is packaged in a 20-lead Thin Shrink Small Outline Package (TSSOP).
- Does the AD5330BRU have a buffered or unbuffered reference input option?
Yes, the AD5330BRU allows for both buffered and unbuffered reference input options based on the BUF pin setting.
- What is the purpose of the LDAC pin on the AD5330BRU?
The LDAC pin is used to update the DAC registers with the contents of the input registers, allowing simultaneous update of multiple DACs.
- Is the AD5330BRU still in production?
No, the AD5330BRU is discontinued and no longer in production.
