Overview
The AD5330BRU-REEL7, 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, making it suitable for a wide range of applications, including portable battery-powered instruments and industrial process control. The AD5330 features an on-chip output buffer that enables rail-to-rail operation, ensuring the output can drive to both supply rails. It also includes a power-on reset circuit that sets the DAC output to 0 V until valid data is written, and a power-down mode that reduces current to 80 nA at 3 V or 200 nA at 5 V.
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 | ||
| Power Supply Range | 2.5 V to 5.5 V | ||
| Current Consumption | 115 μA @ 3 V, 140 μA @ 5 V | ||
| Power-Down Current | 80 nA @ 3 V, 200 nA @ 5 V | Via PD Pin | |
| Output Range | 0 V to VREF or 0 V to 2 × VREF | ||
| Minimum Output Voltage | 0.001 V min | Rail-to-rail operation | |
| Maximum Output Voltage | VDD − 0.001 V max | Rail-to-rail operation | |
| DC Output Impedance | 0.5 Ω | ||
| Short-Circuit Current | 25 mA @ 5 V, 15 mA @ 3 V | ||
| Power-Up Time | 2.5 μs @ 5 V, 5 μs @ 3 V | Coming out of power-down mode |
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 or 200 nA at 5 V.
- On-chip rail-to-rail output buffer amplifiers, enabling output to drive to both supply rails.
- Double-buffered input logic, allowing simultaneous update of multiple DACs using the LDAC pin.
- Buffered or unbuffered reference input options (AD5330, AD5340, and AD5341).
- Output range settable to 0 V to VREF or 0 V to 2 × VREF via the GAIN pin.
- Asynchronous CLR input to reset the input and DAC registers to all zeros.
- 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 easy data loading and control.
- Temperature range: −40°C to +105°C.
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-REEL7?
The AD5330BRU-REEL7 has an 8-bit resolution.
- What is the power supply range for the AD5330BRU-REEL7?
The device operates from a 2.5 V to 5.5 V power supply.
- How much current does the AD5330BRU-REEL7 consume in normal operation?
The device consumes 115 μA at 3 V and 140 μA at 5 V.
- What is the power-down current of the AD5330BRU-REEL7?
The power-down current is 80 nA at 3 V and 200 nA at 5 V.
- Does the AD5330BRU-REEL7 have a power-on reset feature?
Yes, the device includes a power-on reset circuit that sets the DAC output to 0 V until valid data is written.
- Can the AD5330BRU-REEL7 drive its output to both supply rails?
Yes, the on-chip output buffer allows rail-to-rail operation.
- What are the options for the reference input on the AD5330BRU-REEL7?
The device allows for both buffered and unbuffered reference input options.
- How can multiple DACs be updated simultaneously with the AD5330BRU-REEL7?
Multiple DACs can be updated simultaneously using the LDAC pin.
- What is the temperature range for the AD5330BRU-REEL7?
The device operates over a temperature range of −40°C to +105°C.
- What is the DC output impedance of the AD5330BRU-REEL7?
The DC output impedance is 0.5 Ω.
