New 16-bit High-Speed, Low-Power ADC Additions to Popular Data Converter Portfolio

New 16-bit High-Speed, Low-Power ADC Additions to Popular Data Converter Portfolio - deliver three industry technology firsts in error correction, speed, and size.

The new additions include the first 16-bit 80 MSPS low-power, dual ADC to feature quadrature-error correction (QEC); the first single-channel, 16-bit low-power ADC to span 80 to 125 megasamples per second (MSPS); and the industry’s smallest, single-channel 16-bit low-power ADC spanning 20 to 80 MSPS.

Already acknowledged as the global leader in data-conversion technology for signal processing applications, Analog Devices has expanded its low-power data converter portfolio with  three new high-performance, power efficient analog-to-digital converters (ADCs) targeted at communications, portable device, instrumentation and healthcare applications.
 
The additions to the portfolio includes three data converters that offer industry firsts for 16-bit ADCs:
• The AD9269 is the industry’s first 16-bit 80 MSPS low-power, dual ADC to feature quadrature-error correction (QEC)
• The AD9265 is the industry’s first single-channel, 16-bit low-power ADC to span 80 to 125 MSPS (megasamples per second)
• The AD9266 is the industry’s smallest, single-channel 16-bit low-power ADC spanning 20 to 80 MSPS (megasamples per second)

Sub 100 mW/Channel, Low-Power, Dual-Channel ADC Spans 20 to 80 MSPS
Analog Devices’ new dual-channel  16-bit low-power ADC consumes 93 mW per channel, which is 6.5 times lower than competing devices. The AD9269 is a monolithic, dual-channel 16-bit, 20/40/65/80 MSPS ADC, featuring a high performance sample-and-hold circuit and on-chip voltage reference. It’s also the industry’s first 16-bit ADC family to include a QEC and DC offset digital processing block. These blocks dynamically minimize the errors produced in an in-phase/quadrature (I/Q) complex signal receiver system. By using the QEC block, system designers can relax component matching requirements by reducing gain and phase errors due to component mismatches. The net result can also enable a more robust receiver design. In addition, the DC-offset algorithm minimizes offsets commonly found in DC-coupled applications. The product uses multistage differential pipeline architecture with output error correction logic to provide 16-bit accuracy at 80-MSPS data rates and guarantees no missing codes over the full operating temperature range. The ADC operates from a 1.8-V supply and contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital-test-pattern generation. Samples of the AD9269 are available now with production quantities available in January, 2010.

Low-Power, Single-Channel 16-bit ADC Clocks at 125 MSPS
Analog Devices designed its new single-channel  low-power, 16-bit ADC to support communications applications requiring low bill-of-material costs, small size, and flexibility. Consuming only 370 mW, the AD9265 offers a 51 percent saving in power consumption compared to competitive low-power solutions. The ADC core features a multistage, differential pipelined architecture with integrated output error correction logic. The AD9265 features a wide bandwidth differential sample-and-hold analog input amplifier supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations. A duty cycle stabilizer provides means to compensate for variations in the ADC clock duty cycle, allowing the converters to maintain excellent performance. The ADC output data are either parallel 1.8 V CMOS or 1.8 V LVDS (DDR). Flexible power-down options allow significant power savings, when desired. Programming for setup and control are accomplished using a 3-bit SPI-compatible serial interface. The AD9265 is already in full production.

Smallest 16-bit Low-power, Single-channel ADC Spans 20 to 80 MSPS
Analog Devices’ new single-channel  16-bit, low-power ADC is available in a small 5 mm x 5 mm package, and the pin-out supports resolutions from 10 to 16 bits. The AD9266’s low-power, multistage ADC core is based on a proprietary, high-performance, sample-and-hold circuit and on-chip voltage reference. The device uses a differential-pipeline architecture with output-error-correction logic to provide 16-bit accuracy at 80 MSPS data rates and guarantees no missing codes over the full operating temperature range. The ADC contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the SPI. A differential clock input controls all internal conversion cycles. An optional DCS compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance. The digital output data are presented in offset binary, Gray code, or twos complement formats at double-data-rate low-voltage CMOS levels. A data output clock (DCO) is provided to ensure proper latch timing with receiving logic. Samples of the AD9266are available now with production quantities available in January, 2010.

Background:
Research shows that more designers turn to Analog Devices than any other supplier for the high-performance conversion technology required to bridge the analog and digital worlds in today’s myriad electronic systems. With the industry’s leading portfolio of ADCs (analog-to-digital converters) and DACs (digital-to-analog converters), Analog Devices’ converter products feature the right combination of sampling rates and accuracy with low noise, power, and price and small package size required by industrial, medical, automotive, communications, and consumer electronics. Analog Devices offers numerous online evaluation tools help engineers quickly validate, select, and design in the optimal data converters to reduce design complexity, development schedules, and bill-of-material costs.

Further information on the AD9269, AD9265 and AD9266 and or ADI’s entire range of  ADCs and DACs can be requested via the enquiry form below.