AD9708
PRODUCTION8-Bit, 100 MSPS+ TxDAC® D/A Converter
- Part Models
- 6
- 1ku List Price
- Starting From $5.97
Part Details
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The AD9708 is the 8-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, was 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 AD9708 offers exceptional ac and dc performance while supporting update rates up to 125 MSPS.
The AD9708'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 45 mW, 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 20 mW.
The AD9708 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 +3 V and +5 V CMOS logic families.
The AD9708 is a current-output DAC with a nominal full-scale output current of 20 mA and > 100 k Ohms 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 1.25 V.
The AD9708 contains a 1.2 V on-chip reference and reference control amplifier, which allows the full-scale output current to be simply set by a single resistor. The AD9708 can be driven by a variety of external reference voltages. The AD9708's full-scale current can be adjusted over a 2 mA to 20 mA range without any degradation in dynamic performance. Thus, the AD9708 may operate at reduced power levels or be adjusted over a 20 dB range to provide additional gain ranging capabilities.
The AD9708 is available in a 28-pin SOIC package. It is specified for operation over the industrial temperature range.
Documentation
Data Sheet 1
Application Note 8
Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9708AR | 28-Lead SOIC (Wide) | ||
| AD9708ARU | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD9708ARUZ | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD9708ARUZRL7 | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD9708ARZ | 28-Lead SOIC (Wide) | ||
| AD9708ARZRL | 28-Lead SOIC (Wide) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
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Aug 4, 2010 - 10_0117 Halogen Free Material Change for SOIC_W Products at Carsem |
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| AD9708AR | PRODUCTION | |
| AD9708ARZ | PRODUCTION | |
| AD9708ARZRL | PRODUCTION | |
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Feb 11, 2011 - 10_0005 Halogen Free Material Change for TSSOP Products Assembled at Amkor |
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| AD9708ARU | PRODUCTION | |
| AD9708ARUZ | PRODUCTION | |
| AD9708ARUZRL7 | PRODUCTION | |
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Apr 5, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4 |
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| AD9708ARUZ | PRODUCTION | |
| AD9708ARUZRL7 | PRODUCTION | |
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Jul 21, 2014 - 13_0297 Qualification of ASE Chungli, as an Alternate Assembly Site for Select 16L, 20L, 24L and 28L SOICW Packages |
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| AD9708ARZ | PRODUCTION | |
| AD9708ARZRL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
AD9708 IBIS Models 4
Evaluation Kits
AD9708 Evaluation Board