AD7679

PRODUCTION

18-Bit, 570 kSPS PulSAR® A/D Converter

Analog Devices AD7679 Product Info

10 February 2026 7

Features

18-bit resolution with no missing codes
No pipeline delay (SAR architecture)
Differential input range: ±V_REF (V_REF up to 5 V)
Throughput: 570 kSPS
INL: ±2.5 LSB max (±9.5 ppm of full scale)
Dynamic range : 103 dB typ (V_REF = 5 V)
S/(N+D): 100 dB typ @ 2 kHz (V_REF = 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: 76 mW @ 500 kSPS; 150 μW @ 1 kSPS
48-lead LQFP or 48-lead LFCSP package
Pin-to-pin compatible upgrade of AD7674/AD7676/AD7678

Part details & applications

The AD7679 is an 18-bit, 570 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 a 48-lead LQFP or 48-lead LFCSP with operation specified from –40°C to +85°C.

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