Overview
The AD9746BCPZRL is a high-performance, dual 14-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD9743/AD9745/AD9746/AD9747 family, which are pin-compatible and offer various resolutions and sample rates. The AD9746 is designed for high dynamic range applications and features a proprietary dynamic output architecture that allows for the synthesis of analog outputs even beyond the Nyquist frequency.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 | Bits | ||
| Differential Nonlinearity (DNL) | ±0.13 | LSB | ||
| Integral Nonlinearity (INL) | ±0.25 | LSB | ||
| Full-Scale Output Current | 8.6 | 31.7 | mA | |
| Output Compliance Voltage | -1.0 | +1.0 | V | |
| Output Resistance | 10 | MΩ | ||
| Sample Rate | 250 | MSPS | ||
| Power Dissipation | 315 | mW | ||
| Supply Voltage | 1.8 V, 3.3 V | V |
Key Features
- High dynamic range with 14-bit resolution and sample rates up to 250 MSPS.
- Proprietary dynamic output architecture allowing for analog outputs beyond the Nyquist frequency.
- Dual DACs with differential analog current outputs programmable from 8.6 mA to 31.7 mA full-scale.
- Auxiliary 10-bit current DACs for external offset nulling.
- Internal 1.2 V precision reference voltage source.
- LVCMOS inputs with dual-port or optional interleaved single-port operation.
- Serial peripheral interface (SPI) port for full programmability and pin-programmable features.
Applications
- Wireless infrastructure: W-CDMA, CDMA2000, TD-SCDMA, WiMAX.
- Wideband communications: LMDS/MMDS, point-to-point.
- Instrumentation.
- Radio frequency (RF) signal generators and arbitrary waveform generators.
Q & A
- What is the resolution of the AD9746BCPZRL?
The AD9746BCPZRL has a 14-bit resolution. - What is the maximum sample rate of the AD9746BCPZRL?
The maximum sample rate is up to 250 MSPS. - What are the supply voltages for the AD9746BCPZRL?
The device operates from 1.8 V and 3.3 V supplies. - What is the power dissipation of the AD9746BCPZRL?
The power dissipation is 315 mW. - What type of output architecture does the AD9746BCPZRL use?
The device uses a proprietary dynamic output architecture that allows for analog outputs beyond the Nyquist frequency. - What are the key applications of the AD9746BCPZRL?
The key applications include wireless infrastructure, wideband communications, instrumentation, and RF signal generators. - Does the AD9746BCPZRL support SPI programming?
Yes, it supports full programmability via a serial peripheral interface (SPI) port. - What is the output compliance voltage range of the AD9746BCPZRL?
The output compliance voltage range is from -1.0 V to +1.0 V. - What is the output resistance of the AD9746BCPZRL?
The output resistance is 10 MΩ. - Is the AD9746BCPZRL RoHS-compliant?
Yes, the device is RoHS-compliant.
