Overview
The TLC7528CDWRG4, produced by Texas Instruments, is a dual 8-bit multiplying digital-to-analog converter (DAC). This component is designed with separate on-chip data latches and features exceptionally close DAC-to-DAC matching. It operates in voltage mode, producing a voltage output rather than a current output, and is compatible with a wide range of microprocessor buses and output ports. The TLC7528 series includes three temperature grades: TLC7528C (0°C to +70°C), TLC7528E (-40°C to +85°C), and TLC7528I (-25°C to +85°C), making it versatile for various 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 Free-Air Temperature Range | TLC7528C: 0°C to +70°C TLC7528E: -40°C to +85°C TLC7528I: -25°C to +85°C | °C |
| Supply Voltage Range | 4.75V to 5.25V, 14.5V to 15.5V | V |
| High-Level Input Voltage | 2.4V to 13.5V | V |
| Low-Level Input Voltage | 0.8V to 1.5V | V |
| CS Setup Time | 50 ns | ns |
| CS Hold Time | 0 ns | ns |
| DAC Select Setup Time | 50 ns | ns |
| DAC Select Hold Time | 10 ns | ns |
| Data Bus Input Setup Time | 25 ns | ns |
| Data Bus Input Hold Time | 10 ns | ns |
Key Features
- Easily interfaced to microprocessors and digital signal processors (DSPs) like the TMS320.
- On-chip data latches for each DAC, allowing for independent control of each converter.
- Monotonic over the entire A/D conversion range.
- Interchangeable with Analog Devices AD7528 and PMI PM-7528.
- Voltage-mode operation, producing a voltage output.
- CMOS technology for low power consumption.
- Segmenting of high-order bits to minimize glitches during changes in the most significant bits.
- 2- or 4-quadrant multiplying capability, suitable for microprocessor-controlled gain-setting and signal-control applications.
Applications
- Microprocessor-controlled gain-setting and signal-control applications.
- Digital signal processing (DSP) applications, including interface with TMS320 DSPs.
- Programmable window detectors and comparators.
- Digitally-controlled signal attenuators, such as in stereo audio and telephone signal level control.
- Digitally-controlled state-variable filters for various audio and signal processing tasks.
Q & A
- What is the resolution of the TLC7528CDWRG4?
The resolution of the TLC7528CDWRG4 is 8 bits. - What is the typical power dissipation of the TLC7528 at VDD = 5V?
The typical power dissipation is 20 mW. - What is the settling time of the TLC7528 at VDD = 5V?
The settling time is 100 ns. - What is the propagation delay time of the TLC7528 at VDD = 5V?
The propagation delay time is 80 ns. - What are the operating temperature ranges for the TLC7528 series?
The operating temperature ranges are: TLC7528C (0°C to +70°C), TLC7528E (-40°C to +85°C), and TLC7528I (-25°C to +85°C). - Can the TLC7528 be used with different microprocessors?
Yes, it can be easily interfaced to various microprocessors and DSPs. - What is the supply voltage range for the TLC7528?
The supply voltage range is 4.75V to 5.25V and 14.5V to 15.5V. - What is the linearity error of the TLC7528?
The linearity error is ±1/2 LSB. - Can the TLC7528 be used in audio applications?
Yes, it can be used in audio applications such as digitally-controlled signal attenuators and state-variable filters. - Is the TLC7528 interchangeable with other DACs?
Yes, it is interchangeable with Analog Devices AD7528 and PMI PM-7528.
