AD7621ASTZRL Datasheet PDF - ADI

●Product Details

●The AD7621 is a 16-bit, 3 MSPS, charge redistribution SAR, fully differential analog-to-digital converter that operates from a single 2.5 V power supply. The part contains a high-speed 16-bit sampling ADC, an internal conversion clock, an internal reference buffer, error correction circuits, and both serial and parallel system interface ports.

●It features a very high sampling rate mode (Wideband Warp) for undersampling applications 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 available in a 48-lead LQFP or a 48-lead LFCSP with operation specified from –40°C to +85°C.

●APPLICATIONS

● Medical instruments

● High speed data acquisition

● Digital signal processing

● Communications

● Instrumentation

● Spectrum analysis

● ATE

●### Features and Benefits

● 16 Bits Resolution with No Missing Codes

● No Pipeline Delay ( SAR architecture )

● Differential Input Range: ±VREF (VREF up to 2.5V)

● Throughput: 

●3 MSPS (Wideband Warp and Warp Mode)

●2 MSPS (Normal Mode)

●1.25 MSPS (Impulse Mode)

● INL ±2 LSB Max (±30 ppm of FS)

● SINAD: 89 dB Typ @ 100 kHz

● THD: -103 dB Typ @ 100 kHz

● Parallel (16 or 8 bits bus) and Serial 5 V/3.3 V/2.5 V Interface

● SPI®/QSPI™/MICROWIRE™/DSP Compatible

● On-board Low Drift Reference with Buffer and Temperature Sensor

● Single 2.5 V Supply Operation

● Power Dissipation: 70 mW Typ @ 3 MSPS With REF