AD7653

PRODUCTION

16-Bit 1 MSPS PulSAR® Unipolar ADC with Ref

Analog Devices AD7653 Product Info

10 February 2026 5

Features

2.5 V Internal Reference:
Typical Drift 7 ppm/ºC
Throughput:
1 MSPS (Warp Mode)
800 kSPS (Normal Mode)
666 kSPS (Impulse Mode)
16-Bit Resolution
Analog Input Voltage Range: 0 V to
2.5 V
No Pipeline Delay
Parallel and Serial 5 V/3 V Interface

SPI^®/QSPI^™/MICROWIRE^™/DSP Compatible
Single 5 V Supply Operation
Power Dissipation
92 mW typ @ 666 kSPS,
138 µW @ 1 kSPS without REF
128 mW typ @ 1 MSPS with REF
Package:
48-Lead Quad Flat Pack (LQFP)
48-Lead Chip Scale Package (LFCSP)
Pin-to-Pin Compatible with PulSAR^™ ADCs

Part details & applications

The AD7653 is a 16-bit, 1 MSPS, charge redistribution SAR, 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, internal reference, error correction circuits, and both serial and parallel system inter-face ports.

It features a very high sampling rate mode (Warp) and, for asynchronous conversion rate applications, a fast mode (Normal) and, for low power applications, a reduced power mode (Impulse) where the power is scaled with the throughput.

It is fabricated using Analog Devices' high-performance, 0.6 micron CMOS process, with correspondingly low cost and is available in a 48-lead LQFP and a tiny 48-lead LFCSP with operation specified from -40°C to +85°C.

APPLICATIONS

Data acquisition
Instrumentation
Digital signal processing
Spectrum analysis
Medical instruments
Battery-powered systems
Process control

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