Overview
The DAC8512EPZ, produced by Analog Devices Inc., is a complete serial input, 12-bit, voltage output digital-to-analog converter (DAC) designed to operate from a single +5 V supply. This monolithic DAC contains the digital-to-analog converter, input shift register and latches, reference, and a rail-to-rail output amplifier. Built using a CBCMOS process, it offers low cost and ease of use in +5 V only systems. The DAC8512 is specified over the extended industrial temperature range of –40°C to +85°C and is available in plastic DIPs and SO-8 surface mount packages.
Key Specifications
| Parameter | Symbol | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Resolution | N | 12 | Bits | |||
| Relative Accuracy | INL | –1 | +1/4 | LSB (E Grade) | ||
| Differential Nonlinearity | DNL | –1 | +3/4 | LSB (No Missing Codes) | ||
| Zero-Scale Error | VZSE | Data = 000H | +1/2 | +3 | LSB | |
| Full-Scale Voltage | VFS | Data = FFFH | 4.085 | 4.095 | 4.105 | V |
| Logic Input Low Voltage | VIL | 0.8 | V | |||
| Logic Input High Voltage | VIH | 2.4 | V | |||
| Input Leakage Current | IIL | 10 | µA | |||
| Positive Supply Current | IDD | VIH = 2.4 V, VIL = 0.8 V | 2.5 | mW |
Key Features
- Complete serial input, 12-bit, voltage output digital-to-analog converter.
- Operates from a single +5 V supply.
- Contains the DAC, input shift register and latches, reference, and a rail-to-rail output amplifier.
- Natural binary coding with MSB loaded first.
- Output range of 0 V to +4.095 V with 1 mV/LSB resolution.
- Capable of sinking and sourcing 5 mA.
- On-chip reference is laser trimmed for accurate full-scale output voltage.
- High-speed, three-wire, DSP-compatible serial interface with data in (SDI), clock (CLK), and load strobe (LD).
- Chip-select pin for connecting multiple DACs.
- CLR input to set output to zero scale at power on or upon user demand.
- Available in plastic DIPs and SO-8 surface mount packages.
Applications
- Portable instrumentation.
- Digitally controlled calibration.
- Servo controls.
- Process control equipment.
- PC peripherals.
Q & A
- What is the resolution of the DAC8512?
The DAC8512 has a resolution of 12 bits.
- What is the operating voltage range of the DAC8512?
The DAC8512 operates from a single +5 V supply.
- What is the output voltage range of the DAC8512?
The output voltage range is 0 V to +4.095 V.
- What is the resolution per bit of the DAC8512?
The resolution is 1 mV per bit.
- Is the DAC8512 capable of sinking and sourcing current?
Yes, it can sink and source up to 5 mA.
- What type of serial interface does the DAC8512 use?
The DAC8512 uses a high-speed, three-wire, DSP-compatible serial interface.
- What is the temperature range over which the DAC8512 is specified?
The DAC8512 is specified over the extended industrial temperature range of –40°C to +85°C.
- In what packages is the DAC8512 available?
The DAC8512 is available in plastic DIPs and SO-8 surface mount packages.
- How does the CLR input function on the DAC8512?
The CLR input sets the output to zero scale at power on or upon user demand.
- What are some common applications of the DAC8512?
Common applications include portable instrumentation, digitally controlled calibration, servo controls, process control equipment, and PC peripherals.
