Overview
The AD9742ACPZRL7 is a 12-bit resolution, wideband, third-generation member of the TxDAC series of high-performance, low-power CMOS digital-to-analog converters (DACs) produced by Analog Devices Inc. This device is specifically optimized for the transmit signal path of communication systems and is part of a pin-compatible family that includes 8-, 10-, 12-, and 14-bit DACs. The AD9742 offers exceptional AC and DC performance, supporting update rates up to 210 MSPS, making it suitable for high-speed applications. Its low power dissipation and power-down mode further enhance its suitability for portable and low-power applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | - | - | 12 bits | - |
| Update Rate | - | - | 210 MSPS | - |
| Power Supply Voltage | 2.7 V | 3.3 V | 3.6 V | V |
| Power Dissipation (Full Operation) | - | - | 135 mW | mW |
| Power Dissipation (Power-Down Mode) | - | - | 15 mW | mW |
| Full-Scale Output Current | - | - | 20 mA | mA |
| Temperature Range | -40°C | - | 85°C | °C |
| Package Type | - | - | 32-Lead LFCSP | - |
Key Features
- Exceptional AC and DC performance with support for update rates up to 210 MSPS.
- Low power dissipation, with full operation at 135 mW and power-down mode at approximately 15 mW.
- Segmented current source architecture combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated band gap voltage reference.
- Digital inputs support 3 V CMOS logic families.
- Industry-standard packages including 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP.
- Power-down mode and adjustable full-scale current output for lower power operation.
Applications
- Transmit signal path of communication systems.
- Portable and low-power applications.
- High-speed data conversion in various communication systems.
- Direct conversion transmit applications.
- Integration with analog quadrature modulators.
Q & A
- What is the resolution of the AD9742ACPZRL7?
The AD9742ACPZRL7 has a 12-bit resolution.
- What is the maximum update rate of the AD9742ACPZRL7?
The maximum update rate is 210 MSPS.
- What are the power supply voltage ranges for the AD9742ACPZRL7?
The power supply voltage ranges from 2.7 V to 3.6 V.
- How much power does the AD9742ACPZRL7 consume in full operation?
The device consumes approximately 135 mW in full operation.
- What is the power dissipation in power-down mode?
The power dissipation in power-down mode is approximately 15 mW.
- What type of digital logic does the AD9742ACPZRL7 support?
The device supports 3 V CMOS logic families.
- What are the available package types for the AD9742ACPZRL7?
The device is available in 28-lead SOIC, 28-lead TSSOP, and 32-lead LFCSP packages.
- Can the full-scale output current of the AD9742ACPZRL7 be adjusted?
Yes, the full-scale output current can be adjusted to reduce power consumption with a slight degradation in performance.
- What is the temperature range for the AD9742ACPZRL7?
The temperature range is from -40°C to 85°C.
- What architecture does the AD9742ACPZRL7 use to enhance dynamic performance?
The device uses a segmented current source architecture combined with a proprietary switching technique.
