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High Speed DAC

3PD5651E - High-speed, 10-Bit, 125MSPS, CMOS Digital-to-Analog Converter


1) 125 MSPS Update Rate

2) 10-Bit Resolution

3) Linearity: 1/4 LSB DNL

4) Linearity: 1/2 LSB INL

5) Differential Current Outputs: 2 mA to 20 mA

6) SFDR to Nyquist at 40MHz Output: 62 dBc

7) Fast Settling: 35 ns Full-Scale Settling to 0.1%

8) On-Chip 1.10 V Reference

9) Edge-Triggered Latches

10) Power Dissipation: 175 mW @ 5 V to 45 mW @ 3 V

11) Power-Down Mode: 20 mW @ 5 V

12) Single +5 V or +3 V Supply Operation

13) Green, 28-Lead TSSOP Package

14) Pin Compatible with TI and ADI Communication DAC Family

Typical Application


The 3PD5651E offers exceptional AC and DC performance while supporting update rates up to 125 MSPS. The 3PD5651E’s flexible single-supply operating range of +2.7V to +5.5V and low power dissipation are well suited for portable and low power applications. Its power dissipation can be further reduced to 45mW, without a significant degradation in performance, by lowering the full-scale current output. In addition, a power-down mode reduces the standby power dissipation to approximately 20mW.

The 3PD5651E is manufactured on an advanced CMOS process. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious components and enhance dynamic performance. Edge-triggered input latches and a temperature compensated bandgap reference have been integrated to provide a complete monolithic DAC solution. Flexible supply options support +3V and +5V CMOS logic families.

The 3PD5651E is a current-output DAC with a nominal full-scale output current of 20mA and > 100kΩ output impedance.

Differential current outputs are provided to support single-ended or differential applications. The current outputs may be directly tied to an output resistor to provide two complementary, single-ended voltage outputs. The output voltage compliance range is 1.25V.

The 3PD5651E contains a 1.10V on-chip reference and reference control amplifier, which allows the full-scale output current to be simply set by a single resistor. The 3PD5651E can be driven by a variety of external reference voltages.

The 3PD5651E’s full-scale current can be adjusted over a 2mA to 20mA range without any degradation in dynamic performance. Thus, the 3PD5651E may operate at reduced power levels or be adjusted over a 20dB range to provide additional gain ranging capabilities.

The 3PD5651E is available in 28-Lead TSSOP package. It is specified for operation over the industrial temperature range.


1) Communications Transmit Channel

2) Signal Reconstruction

3) Direct Digital Synthesis (DDS)

4) Instrumentation

5) Video Reconstruction

Application Notes
3PEAK_Selection Guide