AD7674ACPZ

ANALOG DEVICES  AD7674ACPZ  模数转换器, 18 bit, 800 kSPS, 单, 4.75 V, 5.25 V, LFCSP

Product Details

The AD7674 is an 18-bit, 800 kSPS, charge redistribution, successive approximation register SAR fully differential analog-to-digital converter ADC that operates on a single 5 V power supply. The device 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 device is available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from −40°C to +85°C.

Product Highlights

1. High Resolution, Fast Throughput. The AD7674 is an 800 kSPS, charge redistribution, 18-bit, SAR ADC no latency.

2. Excellent Accuracy. The AD7674 has a maximum integral nonlinearity of 2.5 LSB with no missing 18-bit codes.

3. Serial or Parallel Interface. Versatile parallel 18-, 16- or 8-bit bus or 3-wire serial interface arrangement compatible with both 3 V and 5 V logic.

Applications

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CT scanners

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High dynamic data acquisition

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Geophone and hydrophone sensors

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∑-∆ replacement low power, multichannel

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Instrumentation

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Spectrum analysis

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Medical instruments

### Features and Benefits

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18-bit resolution with no missing codes

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No pipeline delay SAR architecture

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Differential input range: ±VREF VREF up to 5 V

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Throughput

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800 kSPS warp mode

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666 kSPS normal mode

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570 kSPS impulse mode

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INL: ±2.5 LSB max ±9.5 ppm of full scale

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Dynamic range : 103 dB typ VREF = 5 V

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SINAD: 100 dB typ at 2 kHz VREF = 5 V

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Parallel 18-, 16-, or 8-bit bus and serial 5 V/3 V interface

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SPI/QSPI™/MICROWIRE/DSP compatible

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On-board reference buffer

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Single 5 V supply operation

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See data sheet for additional features