Overview
The AD5330BRU-REEL, produced by Analog Devices Inc., is a single 8-bit Digital-to-Analog Converter (DAC) designed for low power consumption and high performance. This device operates from a 2.5 V to 5.5 V power supply and is available in a 20-lead Thin Shrink Small Outline Package (TSSOP). It features an on-chip output buffer that enables rail-to-rail operation, making it suitable for a variety of applications requiring precise voltage output.
Key Specifications
| Parameter | Value | Unit | Conditions/Comments |
|---|---|---|---|
| Resolution | 8 Bits | ||
| Relative Accuracy | ±0.15 ±1 LSB | ||
| Differential Nonlinearity | ±0.02 ±0.25 LSB | Guaranteed monotonic by design over all codes | |
| Offset Error | ±0.4 ±3 % of FSR | ||
| Gain Error | ±0.15 ±1 % of FSR | ||
| VREF Input Range | 1 VDD V (Buffered), 0.25 VDD V (Unbuffered) | V | |
| VREF Input Impedance | >10 MΩ (Buffered), 180 kΩ (Unbuffered, gain = 1) | Ω | |
| Minimum Output Voltage | 0.001 V min | V | Rail-to-rail operation |
| Maximum Output Voltage | VDD - 0.001 V max | V | Rail-to-rail operation |
| DC Output Impedance | 0.5 Ω | Ω | |
| Short-Circuit Current | 25 mA @ 5 V, 15 mA @ 3 V | mA | |
| Power-Up Time | 2.5 μs @ 5 V, 5 μs @ 3 V | μs | Coming out of power-down mode |
| Power Supply | 2.5 V to 5.5 V | V | |
| Current Consumption | 115 μA @ 3 V, 140 μA @ 5 V | μA | |
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | nA | |
| Temperature Range | −40°C to +105°C | °C |
Key Features
- Low power operation: 115 μA at 3 V and 140 μA at 5 V, with power-down mode reducing current to 80 nA at 3 V and 200 nA at 5 V.
- On-chip rail-to-rail output buffer amplifiers, allowing output to swing between both supply rails.
- Double-buffered input logic for simultaneous update of multiple DACs using the LDAC pin.
- Buffered or unbuffered reference input options.
- Output range configurable to 0 V to VREF or 0 V to 2 × VREF via the GAIN pin.
- Asynchronous CLR input for resetting the input and DAC registers to zero.
- Power-on reset circuit ensuring DAC output starts at 0 V until valid data is written.
- Parallel interface with CS, WR, and LDAC pins for data loading and control.
Applications
- Portable battery-powered instruments.
- Digital gain and offset adjustment.
- Programmable voltage and current sources.
- Programmable attenuators.
- Industrial process control.
Q & A
- What is the resolution of the AD5330BRU-REEL? The AD5330BRU-REEL has an 8-bit resolution.
- What is the power supply range for the AD5330BRU-REEL? The device operates from a 2.5 V to 5.5 V power supply.
- How much current does the AD5330BRU-REEL consume in normal operation? It consumes 115 μA at 3 V and 140 μA at 5 V.
- What is the power-down current of the AD5330BRU-REEL? The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- Does the AD5330BRU-REEL have a power-on reset feature? Yes, it has a power-on reset circuit that ensures the DAC output starts at 0 V until valid data is written.
- Can the AD5330BRU-REEL be used in high-temperature environments? Yes, it operates over a temperature range of −40°C to +105°C.
- What types of reference inputs are supported by the AD5330BRU-REEL? It supports both buffered and unbuffered reference inputs.
- How can the output range of the AD5330BRU-REEL be configured? The output range can be set to 0 V to VREF or 0 V to 2 × VREF using the GAIN pin.
- Does the AD5330BRU-REEL have an asynchronous CLR function? Yes, it has an asynchronous CLR input to reset the input and DAC registers to zero.
- What is the typical output impedance of the AD5330BRU-REEL? The DC output impedance is 0.5 Ω.
