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Data Converter news
and resources from the world leader
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New Products in Full Production:
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| Family of single-channel digital potentiometers with non-volatile memory provide range of resolution, interface, and resistance options
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| System-ready, 20-Bit, ±2 LSB INL, voltage output DAC, combines accuracy with integrated precision reference conditioning circuitry |
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| Dual-channel 14-Bit, 125 MSPS/105 MSPS, 1.8 V ADC targets multimode digital receivers
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SNR = 74.5 dBFS @ 70 MHz |
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SFDR = 91 dBc @ 70 MHz |
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Low power: 78 mW/channel ADC core @ 125 MSPS |
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Differential analog input with 650 MHz bandwidth |
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IF sampling frequencies to 200 MHz |
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Learn more about the AD9648
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| Single-channel, 14-bit, 250 MSPS, 1.8 V ADC reduces package size by 30 percent over competing products |
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SNR = 71.0 dBFS @ 185 MHz |
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SFDR = 83 dBc @ 185 MHz |
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Total power consumption: 390 mW at 250 MSPS |
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Integer 1-to-8 input clock divider (625 MHz maximum input) |
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IF sampling frequencies of up to 350 MHz |
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Small package: 5 mm × 5 mm 32-lead LFCSP |
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Learn more
about the 14-bit AD9642
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| Eight-channel, 14-Bit, 40/65 MSPS serial LVDS 1.8 V ADC targets ultrasound applications |
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| The AD7298 is a 12-bit, high speed, low power, 8-channel, successive approximation ADC featuring an internal temperature sensor with ±1°C of accuracy. This device operates from a single 3.3 V power supply, dissipates only 17.4 mW in full operation, and supports conversion rates up to 1 MSPS. It contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz. The AD7298 is ideally suited for monitoring system variables, including temperature, in a variety of systems including telecommunications, process, and industrial control.
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The AD7298 is housed in a 20-lead, 4 mm × 4 mm LFCSP with operation
specified from -40°C to +125°C.
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Features
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12-bit SAR ADC with 8 single-ended inputs |
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12-bit temperature-to-digital converter |
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Internal 2.5 V reference
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Fast throughput of 1 Msps |
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Channel sequencer functionality |
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High speed serial interface SPI |
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| Applications
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Data acquisition systems
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Motor control temperature and voltage monitoring
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Comms basestation monitoring |
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Space- and power-constrained remote monitoring applications |
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Winter 2011 |
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| Data
Conversion Online Knowledge Resource
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The Data Conversion Knowledge resource site's "ADC Fundamentals" category contains 12 selected content items authored by renowned ADI technologists such as Walt Kester, Dan Sheingold, and James Bryant. Here are two featured mini-tutorials from this category: |
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| This webcast reveals the secrets behind selecting the best DAC product for your application. Topics reviewed are Resolution and Accuracy, Total Unadjusted Error, Output Noise, Output Timing and System Level Application considerations. Participants will emerge from this webcast with a deeper understanding of DACs and how their specifications can impact system level performance. |
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| Analog Dialogue Article
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| When handling an ac signal, digiPOT performance is limited by bandwidth and distortion. Bandwidth is the maximum frequency that can pass through the digiPOT with less than 3-dB attenuation due to parasitic components. Total harmonic distortion (THD)—here defined as the ratio of the rms sum of the next four harmonics to the fundamental value of the output—is a measure of signal degradation as it passes through the device. The performance limits implied by these specifications are caused by the internal digiPOT architecture. This article provides an analysis of the architecture to enable an understanding of these specifications and how to reduce their negative effects. |
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| Applications Note
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| This application note discusses the architecture and application of digital potentiometers as a means of overcoming the problems of reliability, accuracy, and voltages glitches associated with mechanical pots. |
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As seen in EDN Magazine, ADI's
Rarely Asked Questions presents common application challenges presented
in a unique way.
Question: Should I consider crosstalk when choosing an A/D converter? |
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| High Performance, 16-Bit, 250 MSPS Wideband Receiver with Anti-aliasing Filter (CN-227)
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| This noise-optimized ADC stage with input signal-conditioning |
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| circuit accepts a single-ended input, converts it to differential, amplifies and filters the signal before conversion. It consists of a wide bandwidth (3 GHz) transformer, low-noise differential amplifier , anti-aliasing 3rd-order Butterworth filter, and a 16-bit, 250 MSPS high-performance ADC. |
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