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Series Information for AD9764ARUZ - Analog Devices


  • feature
    Member of Pin-Compatible TxDAC Product Family 125 MSPS Update Rate 14-Bit Resolution Excellent SFDR and IMD Differential Current Outputs: 2 mA to 20 mA Power Dissipation: 190 mW @ 5 V to 45 mW @ 3 V Power-Down Mode: 25 mW @ 5 V On-Chip 1.20 V Reference Single +5 V or +3 V Supply Operation Packages: 28-Lead SOIC and TSSOP Edge-Triggered Latches



The AD9764 is the 14-bit resolution member of the TxDAC series of high performance, low power CMOS digital-to-analog converters (DACs). The TxDAC family, which consists of pin compatible 8-, 10-, 12-, and 14-bit DACs, is specifically opti- mized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package and pinout, providing an upward or downward compo- nent selection path based on performance, resolution and cost. The AD9764 offers exceptional ac and dc performance while supporting update rates up to 125 MSPS. The AD9764’s flexible single-supply operating range of 2.7 V to 5.5 V and low power dissipation are well suited for portable and low power applications. Its power dissipation can be further reduced to a mere 45 mW with a slight degradation in performance by lowering the full-scale current output. Also, a power-down mode reduces the standby power dissipation to approximately 25 mW. The AD9764 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 1.2 V temperature compensated bandgap refer- ence have been integrated to provide a complete monolithic DAC solution. Flexible supply options support +3 V and +5 V CMOS logic families. The AD9764 is a current-output DAC with a nominal full-scale output current of 20 mA and > 100 kΩ output impedance. TxDAC is a registered trademark of Analog Devices, Inc. Differential current outputs are provided to support single- ended or differential applications. Matching between the two current outputs ensures enhanced dynamic performance in a differential output configuration. The current outputs may be tied directly to an output resistor to provide two complemen- tary, single-ended voltage outputs or fed directly into a trans- former. The output voltage compliance range is 1.25 V. The on-chip reference and control amplifier are configured for maximum accuracy and flexibility. The AD9764 can be driven by the on-chip reference or by a variety of external reference voltages. The internal control amplifier, which provides a wide (>10:1) adjustment span, allows the AD9764 full-scale current to be adjusted over a 2 mA to 20 mA range while maintaining excellent dynamic performance. Thus, the AD9764 may operate at reduced power levels or be adjusted over a 20 dB range to provide additional gain ranging capabilities. The AD9764 is available in 28-lead SOIC and TSSOP packages. It is specified for operation over the industrial temperature range.


Resolution (Bits):
Sampling Rate:
Input Channel Type:
Supply Voltage Range:
2.7V to 5.5V
ADC / DAC Case Style:
No. of Pins:
Data Interface:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Dual 14 bit Current Source Current Output DAC
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (07-Jul-2017)

Alternate Descriptions

Newark Electronics
DAC, CURRENT SOURCE, #2, 14BIT, TSSOP28; Resolution (Bits):14bit; Sampling Rate:125MSPS; Data Interface:-; Supply Voltage Range:2.7V to 5.5V; ADC / DAC Case Style:TSSOP; No. of Pins:28Pins; Input Channel Type:Parallel; Operating RoHS Compliant: Yes
Richardson RFPD