Features and Benefits
- Throughput: 1 MSPS
- INL: ±1 LSB Max (±0.0015% of Full Scale)
- 16 Bits Resolution with No Missing Codes
- S/(N+D): 94 dB Typ @ 45 kHz
- THD: –110 dB Typ @ 45 kHz
- Differential Input Range: ±2.5 V
- Both AC and DC Specifications
- See datasheet for additional features
The AD7677 is a 16-bit, 1 MSPS, charge redistribution SAR, fully differential, analog-to-digital converter that operates from a single 5 V power supply. The part contains a high speed 16-bit sampling ADC, an internal conversion clock, error correction circuits, and both serial and parallel system interface ports.
The AD7677 is hardware factory calibrated and comprehensively tested to ensure such ac parameters as signal-to-noise ratio (SNR) and total harmonic distortion (THD), in addition to the more traditional dc parameters of gain, offset, and linearity.
It features a very high sampling rate mode (Warp); a fast mode (Normal) for asynchronous conversion rate applications; and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput.
The AD7677 is available in a 48-lead LQFP or a tiny 48-lead LFCSP with operation specified from –40°C to +85°C.
- Excellent INL
The AD7677 has a maximum integral nonlinearity of 1 LSB with a no missing 16-bit code.
- Superior AC Performances
The AD7677 has a minimum dynamic of 92 dB, 94 dB typical.
- Fast Throughput
The AD7677 is a 1 MSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry.
- Single-Supply Operation
The AD7677 operates from a single 5 V supply and typically dissipates only 115 mW. Its power dissipation decreases with the throughput. It consumes 7 µW maximum when in power-down.
- Serial or Parallel Interface
Versatile parallel (8 bits or 16 bits) or 2-wire serial interface arrangement compatible with both 3 V or 5 V logic.
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)
The EVAL-AD7677EDZ is a fully featured evaluation Kit for the AD7677. This board operates in stand alone mode or in conjunction with the Converter Evaluation and Development board, EVAL-CED1Z . When operated with the Converter Evaluation and Development board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Converter Evaluation and Development board.
Documentation & Resources
Designing Power Supplies for High Speed ADC2/1/2012
High Speed Op Amp Drives a 16-Bit, 1-MSPS Differential-Input A/D Converter11/1/2002 Analog Dialogue
AD7677 Companion Parts
Recommended Driver Amplifiers
- For single-ended to differential driver applications: AD8132, AD8138, ADA4932-1.
- For low noise, high gain bandwidth: AD8021, ADA4899-1, AD8022.
Recommended Voltage References
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.
Support & Discussions
Sample & Buy
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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.