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
