Overview
The AD5344BRU, manufactured by Analog Devices Inc., is a quad 12-bit digital-to-analog converter (DAC) that operates within a voltage range of 2.5 V to 5.5 V. This device is part of the AD5334/AD5335/AD5336/AD5344 family, which includes quad 8-, 10-, and 12-bit DACs. The AD5344BRU is designed for low power consumption, drawing only 500 µA at 3 V, and features a power-down mode that reduces the current to 80 nA. It incorporates an on-chip output buffer that can drive the output to both supply rails, ensuring rail-to-rail operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | - | - | 12 Bits | - | - |
| Relative Accuracy | ±2 | - | ±16 LSB | - | - |
| Differential Nonlinearity | ±0.2 | - | ±1 LSB | - | Guaranteed Monotonic By Design Over All Codes |
| Offset Error | ±0.4 | - | ±3 % of FSR | - | - |
| Gain Error | ±0.1 | - | ±1 % of FSR | - | - |
| Supply Voltage | 2.5 V | - | 5.5 V | V | - |
| Current Consumption | - | 500 µA | - | µA | At 3 V |
| Power-Down Current | - | - | 80 nA | nA | - |
| Temperature Range | -40°C | - | +105°C | °C | - |
| Package | - | - | 28-Lead TSSOP | - | - |
Key Features
- Quad 12-bit digital-to-analog conversion with rail-to-rail output buffers.
- Low power consumption: 500 µA at 3 V and 80 nA in power-down mode.
- Parallel interface for data input.
- Power-On Reset to Zero Volts and simultaneous update of DAC outputs via LDAC pin.
- Asynchronous CLR facility for clearing the DAC outputs.
- Guaranteed monotonicity over all codes.
- 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 AD5344BRU?
The AD5344BRU has a resolution of 12 bits.
- What is the operating voltage range of the AD5344BRU?
The AD5344BRU operates within a voltage range of 2.5 V to 5.5 V.
- How much current does the AD5344BRU consume at 3 V?
The AD5344BRU consumes 500 µA at 3 V.
- What is the power-down current of the AD5344BRU?
The power-down current of the AD5344BRU is 80 nA.
- What type of interface does the AD5344BRU use?
The AD5344BRU uses a parallel interface.
- What is the temperature range of the AD5344BRU?
The temperature range of the AD5344BRU is –40°C to +105°C.
- Does the AD5344BRU have rail-to-rail output buffers?
Yes, the AD5344BRU incorporates on-chip output buffers that can drive the output to both supply rails.
- What is the package type of the AD5344BRU?
The AD5344BRU is packaged in a 28-Lead TSSOP).
- What are some common applications of the AD5344BRU?
Common applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, programmable attenuators, and industrial process control).
- Does the AD5344BRU have a power-on reset feature?
Yes, the AD5344BRU has a power-on reset feature that resets the DAC outputs to zero volts).
