Sigma Delta A/D Converter features rail-to-rail input buffer.
Press Release Summary:
Delivering 24 noise-free bits at 20 SPS and 17.2 noise-free bits at 250 kSPS, Model AD7175-2 enables small signal deviations to be measured as required within analytical laboratory instrumentation systems. Device features 2 differential or 4 single-ended channels, integrated 2.5 V buffered 2 ppm/°C reference, and per-channel programmable digital filters. With 50 kSPS/channel scan rate and 20 µs settling time, converter is suitable for PLC and distributed control system input modules.
Original Press Release:
Analog Devices Introduces Industry's First 24-Bit Sigma Delta A/D Converter with True Rail-to-Rail Analog and Reference Input Buffers On-chip
Ultralow noise, A/D converter with a fast and flexible output data rate for high precision instrumentation and process control applications
NORWOOD, Mass. -- Analog Devices, Inc. (NASDAQ: ADI) introduced today the industry’s first sigma-delta converter with a fully integrated true rail-to-rail input buffer providing system designers with the industry’s leading noise performance at up to 250 kSPS throughput.
The AD7175-2 A/D sigma-delta converter delivers 24 noise-free bits at 20 SPS and 17.2 noise-free bits at 250 kSPS providing designers a wider dynamic range, which enables smaller signal deviations to be measured as required within analytical laboratory instrumentation systems. With twice the throughput for the same power consumption versus competing solutions, the AD7175-2 enables faster, more responsive measurement systems providing a 50-kSPS/channel scan rate with 20 micro second settling time. This combination makes it an ideal choice for use in programmable-logic controller and distributed-control-system input modules.
Download data sheet, view product page and order samples: http://www.analog.com/AD7175-2
Try ADI’s Eval+ simulation platform. To view the tool and order the evaluation board: http://www.analog.com/en/analog-to-digital-converters/ad-converters/ad7175-2/products/EVAL-AD7175-2/eb.htmlÂ
Using a PC see what the AD7175-2 can do with an interactive simulation model and examine the performance and functionality using a bench-top lab evaluation.
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The integrated, low-noise, true rail-to-rail input buffer enables quick and easy sensor interfacing, reduces design and layout complexity, simplifies analog drive circuitry and reduces PCB area. The AD717x family, with a wide range of pin and software compatible devices, allows consolidation and standardization across system platforms.
AD7175-2 A/D Converter Features
User-configurable input channels
2 differential or 4 single-ended channels
Per-channel independent programmability
Integrated 2.5-V buffered 2-ppm/°C reference
Flexible and per-channel programmable digital filters
Enhanced filters for simultaneous 50-Hz and 60-Hz rejection
-40°C to +105°Operating Temperature Range
Pricing, Availability and Complementary Components
Product | Production Availability | Option | Packaging | Price Each In 1,000 Quantities |
AD7175-2 Â | NOW | 250 ksps, 2/4 Ch Mux, Buffered I/P, 5V | 24-lead TSSOP | $11.85 |
AD7172-2 | SAMPLING | 31 ksps, 2/4 Ch Mux, Buffered I/P, 3V/5V | 24-lead TSSOP | $7.45 |
AD7176-2 | NOW | 250 ksps, 2/4 Ch Mux, Un-Buffered, 5V | 24-lead TSSOP | $10.25 |
AD7172-4 | SAMPLING | 31 ksps, 4/8 Ch Mux, Buffered I/P, 3V/5V | 32-lead LFCSP | $7.85 Â |
AD7175-8 | SAMPLING | 250 ksps, 8/16 Ch Mux, Buffered I/P, 5V | 40-lead LFCSP | $12.80 |
AD7173-8 | NOW | 31 ksps, 8/16 Ch Mux, Buffered I/P, 3V/5V | 40-lead LFCSP | $8.30 |
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Complementary Components
Complementary components to the AD7175-2 for designing signal chains include the ADA4528-2 ultra-low-noise, zero-drift operational amplifier, the AD8429 low-noise instrumentation amplifier and the AD8475 precision, fully-differential funnel amplifier.
About Analog Devices
Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 100,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index.
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Contacts
Analog Devices, Inc.
Grainne Murphy
353-61-495540
grainne.murphy@analog.com
