Overview
The TLC7528EN, produced by Texas Instruments, is a dual 8-bit multiplying digital-to-analog converter (DAC) designed for high-performance applications. This device features separate on-chip data latches for each DAC, ensuring exceptionally close DAC-to-DAC matching. It is easily interfaced to microprocessors and is compatible with various microprocessor buses and output ports. The TLC7528EN operates in voltage mode, producing a voltage output, and is suitable for microprocessor-controlled gain-setting and signal-control applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8 bits | |
| Linearity Error | 1/2 LSB | |
| Power Dissipation at VDD = 5V | 20 mW | |
| Settling Time at VDD = 5V | 100 ns | |
| Propagation Delay Time at VDD = 5V | 80 ns | |
| Operating Voltage Range | 5V to 15V | |
| Operating Temperature Range | TLC7528C: 0°C to 70°C TLC7528I: -25°C to 85°C TLC7528E: -40°C to 85°C | °C |
| Supply Current (Quiescent) | 2 mA | |
| Supply Current (Standby) | 0.5 mA |
Key Features
- Easily interfaced to microprocessors with on-chip data latches.
- Monotonic over the entire A/D conversion range.
- Interchangeable with Analog Devices AD7528 and PMI PM-7528.
- Fast control signaling for digital signal processor (DSP) applications, including interface with TMS320.
- Voltage-mode operation producing a voltage output rather than a current output.
- CMOS technology for low power consumption.
- Segmenting the high-order bits minimizes glitches during changes in the most significant bits.
Applications
- Microprocessor-controlled gain-setting and signal-control applications.
- Digital signal processor (DSP) applications.
- Programmable window detectors and comparators.
- Various industrial and automotive control systems requiring precise analog output control.
Q & A
- What is the resolution of the TLC7528EN DAC?
The TLC7528EN has a resolution of 8 bits.
- What is the operating voltage range of the TLC7528EN?
The TLC7528EN operates from a 5V to 15V power supply.
- What is the typical power dissipation of the TLC7528EN at VDD = 5V?
The typical power dissipation is 20 mW at VDD = 5V.
- How does the TLC7528EN minimize glitches during digital input changes?
The device segments the high-order bits to minimize glitches during changes in the most significant bits.
- Is the TLC7528EN compatible with other DAC models?
Yes, it is interchangeable with Analog Devices AD7528 and PMI PM-7528.
- What are the operating temperature ranges for the different versions of the TLC7528EN?
TLC7528C: 0°C to 70°C, TLC7528I: -25°C to 85°C, TLC7528E: -40°C to 85°C.
- How does the TLC7528EN interface with microprocessors?
The device interfaces through a common 8-bit input port, with control inputs DACA/DACB determining which DAC is loaded. The load cycle is similar to the write cycle of a random-access memory.
- What is the settling time of the TLC7528EN at VDD = 5V?
The settling time is 100 ns at VDD = 5V.
- Can the TLC7528EN be used in DSP applications?
Yes, it is designed for fast control signaling in DSP applications, including interface with TMS320.
- What technology is used in the TLC7528EN?
The TLC7528EN uses CMOS technology.
