Overview
The AD9742ACPZ, produced by Analog Devices Inc., is a 12-bit, high-performance, low-power CMOS digital-to-analog converter (DAC) that is part of the TxDAC family. This family includes pin-compatible 8-, 10-, 12-, and 14-bit DACs, optimized for the transmit signal path of communication systems. The AD9742 offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it suitable for a wide range of applications requiring high-speed and low-power operation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | - | 12 bits | - |
| Update Rate | - | - | 210 MSPS | - |
| Supply Voltage | 2.7 V | - | 3.6 V | V |
| Power Dissipation (full operation) | - | - | 135 mW | mW |
| Power Dissipation (sleep mode) | - | - | 15 mW | mW |
| Full-Scale Current Output | - | - | 20 mA | mA |
| Package Options | - | - | 28-Lead SOIC, 28-Lead TSSOP, 32-Lead LFCSP | - |
Key Features
- High-speed, single-ended CMOS clock input supporting up to 210 MSPS conversion rate.
- Low power operation with a complete CMOS DAC function operating on 135 mW from a 2.7 V to 3.6 V single supply.
- On-chip 1.2 V temperature compensated band gap voltage reference.
- Edge-triggered input latches and segmented current source architecture combined with proprietary switching technique to enhance dynamic performance.
- Support for 3 V CMOS logic families.
- Power-down mode reducing standby power dissipation to approximately 15 mW.
Applications
The AD9742ACPZ is optimized for the transmit signal path of communication systems, making it ideal for various applications such as:
- Wireless communication systems.
- Baseband and IF signal processing.
- Portable and low-power communication devices.
- High-speed data acquisition and signal generation.
Q & A
- What is the resolution of the AD9742ACPZ?
The AD9742ACPZ has a resolution of 12 bits. - What is the maximum update rate of the AD9742ACPZ?
The maximum update rate is up to 210 MSPS. - What are the supply voltage ranges for the AD9742ACPZ?
The supply voltage ranges from 2.7 V to 3.6 V. - How much power does the AD9742ACPZ consume in full operation?
The power dissipation in full operation is approximately 135 mW. - What is the power dissipation in sleep mode?
The power dissipation in sleep mode is approximately 15 mW. - What are the package options available for the AD9742ACPZ?
The package options include 28-Lead SOIC, 28-Lead TSSOP, and 32-Lead LFCSP. - Does the AD9742ACPZ support 3 V CMOS logic families?
Yes, it supports 3 V CMOS logic families. - What is the full-scale current output of the AD9742ACPZ?
The full-scale current output is up to 20 mA. - Is the AD9742ACPZ suitable for portable applications?
Yes, it is well-suited for portable and low-power applications due to its low power dissipation. - What is the purpose of the on-chip voltage reference in the AD9742ACPZ?
The on-chip 1.2 V temperature compensated band gap voltage reference provides a stable reference voltage for the DAC.
