AD9762ARU

Number of Converters: 1
Mounting Type: Surface Mount
Number of Bits: 12
Voltage Supply Source: Analog and Digital
Packaging: Tube
Data Interface: Parallel
Operating Temperature: -40°C ~ 85°C
Number of Outputs and Type: 2 Current, Unipolar; 2 Current, Bipolar
Settling Time: 35ns
Package / Case: 28-TSSOP (0.173", 4.40mm Width)
Supplier Device Package: 28-TSSOP
Sampling Rate (Per Second): 125M
Manufacturer: Analog Devices Inc
Series: TxDAC®
Power Dissipation (Max): 160mW


Features:

Member of Pin-Compatible TxDAC Product Family
125 MSPS Update Rate
12-Bit Resolution
Excellent Spurious Free Dynamic Range Performance
SFDR to Nyquist @ 5 MHz Output: 70 dBc
Differential Current Outputs: 2 mA to 20 mA
Power Dissipation: 175 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
Package: 28-Lead SOIC and TSSOP
Edge-Triggered Latches


Application

Communication Transmit Channel:
Basestations (Single/Multichannel Applications)
ADSL/HFC Modems
Direct Digital Synthesis (DDS)
Instrumentation


Specifications

 

Parameter	With Respect to	Min	Max	Units
AVDD	ACOM	0.3	+6.5	V
DVDD	DCOM	0.3	+6.5	V
ACOM	DCOM	0.3	+0.3	V
AVDD	DVDD	6.5	+6.5	V
CLOCK, SLEEP	DCOM	0.3	DVDD+0.3	V
Digital Inputs	DCOM	0.3	DVDD+0.3	V
IOUTA, IOUTB	ACOM	1.0	AVDD+0.3	V
ICOMP	ACOM	0.3	AVDD+0.3	V
REFIO, FSADJ	ACOM	0.3	AVDD+0.3	V
REFLO	ACOM	0.3	+0.3	V
Junction Temperature			+150	°C
Storage Temperature		65	+150	°C
Lead Temperature (10 sec)			+300	°C

Description

The AD9762 is the 12-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 optimized for the transmit signal path of communication systems. All of the devices share the same interface options, small outline package and pinout, thus providing an upward or downward component selection path based on performance, resolution and cost. The AD9762 offers exceptional ac and dc performance while supporting update rates up to 125 MSPS.

The AD9762'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 without a significant 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 AD9762 is manufactured on an advanced CMOS process. A segmented current source architecture is combined with a proprietary switching technique to reduce spurious componentsand enhance dynamic performance. Edge-triggered input latches and a 1.2 V temperature compensated bandgap reference have been integrated to provide a complete monolithic DAC solution. Flexible supply options support +3 V and +5 V
CMOS logic families.

The AD9762 is a current-output DAC with a nominal full-scale output current of 20 mA and > 100 k output impedance.

Parameters:

Technical/Catalog Information	AD9762ARU
Vendor	Analog Devices Inc
Category	Integrated Circuits (ICs)
Data Interface	Parallel
Number of Bits	12
Operating Temperature	-40°C ~ 85°C
Package / Case	28-TSSOP
Packaging	Tube
Voltage Supply Source	Analog and Digital
Settling Time	35ns
Drawing Number	*
RoHS Status	RoHS Non-Compliant
Other Names	AD9762ARU AD9762ARU