Overview
The TLV5620IDR from Texas Instruments is a quadruple 8-bit voltage output digital-to-analog converter (DAC) designed for a variety of applications requiring precise analog voltage control. This device features four independent DAC channels, each capable of producing an output voltage that ranges between either one or two times the reference voltage and ground. The TLV5620IDR operates from a single supply voltage of 3 V to 3.6 V, making it suitable for low-power and space-critical applications. It includes an internal power-on reset to ensure repeatable start-up conditions and does not require external trimming.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 8-bit | |
| Number of Channels | 4 | |
| Supply Voltage (VDD) | 2.7 to 5.25 | V |
| Operating Temperature (TLV5620C) | 0°C to 70°C | |
| Operating Temperature (TLV5620I) | -40°C to 85°C | |
| Reference Voltage Input | VDD - 1.5 V | V |
| Output Range | 1x or 2x reference voltage | |
| Serial Interface | 3-wire, CMOS compatible | |
| Package Type | SOIC-14 | |
| Settling Time | 4.5 µs (positive), 8.5 µs (negative) | µs |
Key Features
- Four 8-bit voltage output DACs with high-impedance reference inputs.
- Programmable output range: 1x or 2x the reference voltage.
- Simultaneous update facility through LDAC control.
- Internal power-on reset for repeatable start-up conditions.
- Low-power consumption.
- Half-buffered output.
- Serial interface with Schmitt triggers for high noise immunity.
- Double-buffered DAC registers for updating all outputs simultaneously.
Applications
- Programmable voltage sources.
- Digitally controlled amplifiers/attenuators.
- Mobile communications.
- Automatic test equipment.
- Process monitoring and control.
- Signal synthesis.
Q & A
- What is the resolution of the TLV5620IDR DAC?
The TLV5620IDR has a resolution of 8 bits.
- How many DAC channels does the TLV5620IDR have?
The TLV5620IDR has four independent DAC channels.
- What is the operating supply voltage range for the TLV5620IDR?
The operating supply voltage range is from 2.7 V to 5.25 V.
- What are the operating temperature ranges for the TLV5620C and TLV5620I?
The TLV5620C operates from 0°C to 70°C, and the TLV5620I operates from -40°C to 85°C.
- How is the output range of the DACs programmable?
The output range can be programmed to either 1x or 2x the reference voltage using the RNG bit in the serial control word.
- What type of serial interface does the TLV5620IDR use?
The TLV5620IDR uses a 3-wire, CMOS-compatible serial interface.
- What is the package type of the TLV5620IDR?
The TLV5620IDR is packaged in a 14-terminal small-outline (SOIC-14) package.
- Does the TLV5620IDR require external trimming?
No, the TLV5620IDR does not require external trimming.
- What is the settling time of the TLV5620IDR DACs?
The settling time is typically 4.5 µs for positive transitions and 8.5 µs for negative transitions.
- How do the DAC outputs update in the TLV5620IDR?
The DAC outputs update simultaneously through the control of the LDAC signal.
