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AD7678: 18-Bit, 2.5 LSB INL, 100 kSPS SAR ADC Data Sheet (Rev. B)8/1/2003PDF1160 kB
Alternative Parts
Overview
Features and Benefits
- 18-bit resolution with no missing codes
- No pipeline delay (SAR architecture)
- Differential input range: ±VREF (VREF up to 5 V)
- Throughput: 100 kSPS
- INL: ±2.5 LSB max (±9.5 ppm of full scale)
- Dynamic range: 103 dB typ (VREF = 5 V)
- S/(N+D): 100 dB typ @ 2 kHz (VREF = 5 V)
- Parallel (18-,16-, or 8-bit bus) and serial 5 V/3 V interface
- SPI®/QSPI™/MICROWIRE™/DSP compatible
- On-board reference buffer
- Single 5 V supply operation
- Power dissipation: 18 mW @ 100 kSPS, 180 μW @ 1 kSPS
- 48-lead LQFP or 48-lead LFCSP package
- Pin-to-pin compatible upgrade of AD7674/AD7676/AD7679
Product Details
The AD7678 is an 18-bit, 100 kSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates on a single 5 V power supply. The part contains a high speed 18-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports.The part is available in 48-lead LQFP or 48-lead LFCSP packages with operation specified from –40°C to +85°C.
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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AN-931: Understanding PulSAR ADC Support Circuitry (Rev. 0)2/14/2015PDF299 kB
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8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog3/8/2008PDF1885 kB
Design Resources
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.
PCN-PDN Information
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.