Overview
The DAC5672AIPFBR is a high-performance, dual-channel, 14-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device is designed to operate at update rates of up to 275 MSPS, making it suitable for high-speed applications. The DAC5672A features exceptional dynamic performance, including high spurious-free dynamic range (SFDR) and low intermodulation distortion (IMD3), which are critical for maintaining signal integrity in demanding environments. The device includes an on-chip 1.2-V temperature-compensated voltage reference and supports both internal and external reference configurations. It is available in a 48-pin Thin-Quad Flat Pack (TQFP) package and is characterized for operation over the industrial temperature range of –40°C to 85°C.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Update Rate | - | - | 275 | MSPS |
| Analog Supply Voltage (AVDD) | 3 | 3.3 | 3.6 | V |
| Digital Supply Voltage (DVDD) | 3 | 3.3 | 3.6 | V |
| Full-Scale Output Current (IOUTFS) | 2 | - | 20 | mA |
| Spurious-Free Dynamic Range (SFDR) at 5 MHz | - | - | 84 | dBc |
| Third-Order Two-Tone Intermodulation (IMD3) at 15.1 MHz and 16.1 MHz | - | - | 79 | dBc |
| Power Dissipation at 200 MSPS | - | - | 330 | mW |
| Power Dissipation in Sleep Mode | - | - | 9 | mW |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | 48-Pin TQFP | - |
Key Features
- Dual-channel, 14-bit DAC with high-speed update rates up to 275 MSPS.
- High spurious-free dynamic range (SFDR) of 84 dBc at 5 MHz and low IMD3 of 79 dBc at 15.1 MHz and 16.1 MHz.
- On-chip 1.2-V temperature-compensated voltage reference with option for external reference.
- Independent or single resistor gain control for each DAC.
- Dual or interleaved data input modes.
- Low power consumption: 330 mW at 200 MSPS and 9 mW in sleep mode.
- High-impedance differential-current output suitable for single-ended or differential analog-output configurations.
- Pin compatibility with other family members (DAC5662, DAC2904, AD9767).
Applications
- Cellular base transceiver station transmit channels: CDMA (W-CDMA, CDMA2000, IS-95), TDMA (GSM, IS-136, EDGE, UWC-136).
- Medical and test instrumentation.
- Arbitrary waveform generators (ARB).
- Direct digital synthesis (DDS).
- Cable modem termination system (CMTS).
Q & A
- What is the maximum update rate of the DAC5672A?
The maximum update rate of the DAC5672A is 275 MSPS.
- What is the typical power consumption of the DAC5672A at 200 MSPS?
The typical power consumption at 200 MSPS is 330 mW.
- What is the power consumption in sleep mode?
The power consumption in sleep mode is 9 mW.
- What are the operating voltage ranges for the analog and digital supplies?
The operating voltage ranges for both the analog (AVDD) and digital (DVDD) supplies are 3 V to 3.6 V.
- What is the full-scale output current range of the DAC5672A?
The full-scale output current range is from 2 mA to 20 mA.
- Does the DAC5672A support both internal and external voltage references?
Yes, the DAC5672A supports both internal and external voltage references.
- What are the key applications of the DAC5672A?
The key applications include cellular base transceiver stations, medical and test instrumentation, arbitrary waveform generators, direct digital synthesis, and cable modem termination systems.
- What is the package type of the DAC5672A?
The DAC5672A is available in a 48-pin Thin-Quad Flat Pack (TQFP) package.
- What is the operating temperature range of the DAC5672A?
The operating temperature range is from –40°C to 85°C.
- Does the DAC5672A support dual or interleaved data input modes?
Yes, the DAC5672A supports both dual-bus and single-bus interleaved data input modes.
