AD9709ASTZ ,Digital to Analog, DAC IC - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

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228 points

Part No

AD9709ASTZ
Manufacturer

ADI
ChipWorker Part#

CW375135
Category

Digital to Analog, DAC IC
Package

LQFP-48
Description

ANALOG DEVICES AD9709ASTZ Digital to Analog Converter, 8Bit, 125MSPS, Parallel, 3V to 5.5V, LQFP, 48Pins
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 11.35

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AD9709ASTZ Specifications

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Attribute	Attribute Value

Part Number	AD9709ASTZ
Manufacturer	ADI
ChipWorker Part#	CW375135
Category	Digital to Analog, DAC IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	48 Pin
Case/Package	LQFP-48
Number of Outputs	2 Output
Supply Current	71.0 mA
Number of Channels	2 Channel
Number of Positions	48 Position
Number of Bits	8 Bit
Power Dissipation	450 mW
Sample Rate	125 Msps
Resolution (Bits)	8.0 Bit
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	450 mW
Number of DACs	2 DAC
Supply Voltage	3V ~ 5.5V
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Size-Length	7 mm
Size-Width	7 mm
Size-Height	1.4 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tray
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
Mil-Spec	No
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

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Product Description

Product Details
The AD9709 is a dual-port, high speed, 2-channel, 8-bit CMOS DAC. It integrates two high quality 8-bit TxDAC+® cores, a voltage reference, and digital interface circuitry into a small 48-lead LQFP package. The AD9709 offers exceptional ac and dc performance while supporting update rates of up to 125 MSPS.
The AD9709 has been optimized for processing I and Q data in communications applications. The digital interface consists of two double-buffered latches as well as control logic. Separate write inputs allow data to be written to the two DAC ports independent of one another. Separate clocks control the update rate of the DACs
A mode control pin allows the AD9709 to interface to two separate data ports, or to a single interleaved high speed data port. In interleaving mode, the input data stream is demuxed into its original I and Q data and then latched. The I and Q data is then converted by the two DACs and updated at half the input data rate.
The GAINCTRL pin allows two modes for setting the full-scale current (IOUTFS) of the two DACs. IOUTFS for each DAC can be set independently using two external resistors, or IOUTFS for both DACs can be set by using a single external resistor. See the Gain Control Mode section for important date code information on this feature.
The DACs utilize a segmented current source architecture combined with a proprietary switching technique to reduce glitch energy and to maximize dynamic accuracy. Each DAC provides differential current output, thus supporting single-ended or differential applications. Both DACs can be simultaneously updated and provide a nominal full-scale current of 20 mA. The full-scale currents between each DAC are matched to within 0.1%.
The AD9709 is manufactured on an advanced low-cost CMOS process. It operates from a single supply of 3.3 V or 5 V and consumes 380 mW of power.
**Product Highlights**
1. The AD9709 is a member of a pin-compatible family of dual TxDACs providing 8-, 10-, 12-, and 14-bit resolution.
2. Dual 8-Bit, 125 MSPS DACs. A pair of high performance DACs optimized for low distortion performance provide for flexible transmission of I and Q information.
3. Matching. Gain matching is typically 0.1% of full scale, and offset error is better than 0.02%.
4. Low Power. Complete CMOS dual DAC function operates at 380 mW from a 3.3 V or 5 V single supply. The DAC full-scale current can be reduced for lower power operation, and a sleep mode is provided for low power idle periods.
5. On-Chip Voltage Reference. The AD9709 includes a 1.20 V temperature-compensated band gap voltage reference.
6. Dual 8-Bit Inputs. The AD9709 features a flexible dual-port interface, allowing dual or interleaved input data.
**Applications**
* Communications
* Base stations
* Digital synthesis
* Quadrature modulation
* 3D ultrasound
### Features and Benefits
8-bit dual transmit digital-to-analog converter (DAC)
125 MSPS update rate
Excellent SFDR to Nyquist @ 5 MHz output: 66 dBc
Excellent gain and offset matching: 0.1%
Fully independent or single-resistor gain control
Dual port or interleaved data
On-chip 1.2 V reference
See Data Sheet for Additional Information

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