Overview
The DAC8544IPFB is a quad-channel, 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. It operates on a single supply voltage ranging from +2.7 V to +5.5 V and is known for its low-power consumption, typically under 5 mW at 5 V. The device features an on-chip precision output amplifier and is packaged in a 48-lead TQFP (Thin Quad Flat Package) with an operating temperature range of –40°C to +105°C.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Slew Rate | RL = 2 kΩ; CL < 200 pF | 1 | V/µs | ||
| Digital-to-Analog Glitch Impulse | 20 | nV-s | |||
| DC Output Impedance | VDD = +5 V | 1 | Ω | ||
| Short-Circuit Current | VDD = +5 V | 50 | mA | ||
| Power-Up Time | Coming out of power-down mode, VDD = +5 V | 2.5 | µs | ||
| Reference Input Range | VREF+ | 0 | VDD | V | |
| Reference Input Impedance | 140 | kΩ |
Key Features
- Low-power operation: 950 µA @ 5 V.
- Double buffered inputs for simultaneous or sequential update.
- Schmitt-triggered digital inputs for noise immunity.
- Hardware reset via RST pin.
- Power-down feature reducing current to 400 nA at 5 V.
- Rail-to-rail voltage output.
- 48-lead TQFP package.
Applications
- Process control.
- Data acquisition systems.
- Closed-loop servo control.
- PC peripherals.
- Optical networking.
Q & A
- What is the operating voltage range of the DAC8544IPFB?
The DAC8544IPFB operates on a single supply voltage ranging from +2.7 V to +5.5 V. - What is the typical power consumption of the DAC8544IPFB at 5 V?
The typical power consumption is under 5 mW at 5 V. - What is the package type of the DAC8544IPFB?
The DAC8544IPFB is packaged in a 48-lead TQFP (Thin Quad Flat Package). - What are the key features of the DAC8544IPFB?
Key features include low-power operation, double buffered inputs, Schmitt-triggered digital inputs, hardware reset, and a power-down feature. - What are some common applications of the DAC8544IPFB?
Common applications include process control, data acquisition systems, closed-loop servo control, PC peripherals, and optical networking. - How does the power-down feature work on the DAC8544IPFB?
The power-down feature reduces the current consumption to 400 nA at 5 V via the PD pin. - What is the slew rate of the DAC8544IPFB?
The slew rate is 1 V/µs for RL = 2 kΩ and CL < 200 pF. - What is the operating temperature range of the DAC8544IPFB?
The operating temperature range is –40°C to +105°C. - Does the DAC8544IPFB have rail-to-rail voltage output?
Yes, the DAC8544IPFB has rail-to-rail voltage output. - What is the reference input impedance of the DAC8544IPFB?
The reference input impedance is 140 kΩ.
