AD7612 Series

16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR®ADC

Catalog

16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR®ADC

Part	Number of A/D Converters	Package / Case	Number of Inputs	Mounting Type	Supplier Device Package	Voltage - Supply, Digital	Number of Bits	Ratio - S/H:ADC	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Voltage - Supply, Analog	Architecture	Sampling Rate (Per Second)	Configuration	Input Type
Analog Devices AD7612BSTZ-RL	1	48-LQFP	1	Surface Mount	48-LQFP (7x7)	5 V	16	1:1	DSP Parallel SPI	85 °C	-40 °C	External Internal	5 V	SAR	750k	S/H-ADC	Differential

Catalog

16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR®ADC

Key Features

• Multiple pins/software programmable input ranges: 5 V, 10 V, ±5 V, ±10 V

• Pins or serial SPI®-compatible input ranges/mode selection

• Throughput750 kSPS (warp mode)600 kSPS (normal mode)500 kSPS (impulse mode)

• INL: ±0.75 LSB typical, ±1.5 LSB maximum (±23 ppm of FSR)

• 16-bit resolution with no missing codes

• SNR: 92 minimum (5 V) @ 2 kHz, 94 dB typical (±10 V) @ 2 kHz

• THD: −107 dB typical

• iCMOS™process technology

• 5 V internal reference: typical drift 3 ppm/°C; TEMP output

• No pipeline delay (SAR architecture)

• Parallel (16- or 8-bit bus) and serial 5 V/3.3 V interface

• SPI-/QSPI™-/MICROWIRE™-/DSP-compatible

Description

The AD7612 is a 16-bit charge redistribution successive approximation register (SAR), architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.'siCMOS high voltage process. The device is configured through hardware or via a dedicated write only serial configuration port for input range and operating mode. The AD7612 contains a high speed 16-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and both serial and parallel system interface ports. A falling edge onCNVSTsamples the analog input on IN+ with respect to a ground sense, IN–. The AD7612 features four different analog input ranges and three different sampling modes: warp mode for the fastest throughput, normal mode for the fastest asynchronous throughput, and impulse mode where power consumption is scaled linearly with throughput. Operation is specified from −40°C to +85°C.ol { margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:25px; padding-top:0px; padding-right:0px; padding-bottom:10px; padding-left:0px;} li { padding-top:0px; padding-right:0px; padding-bottom:5px; padding-left:0px; margin-top:0px; margin-right:0px; margin-bottom:0px; margin-left:0px;}Product HighlightsProgrammable input range and mode selection. Pins or serial port for selecting input range/mode select.Fast throughput. In warp mode, the AD7612 is 750 kSPS.Superior Linearity. No missing 16-bit code. ±1.5 LSB max INL.Internal Reference. 5 V internal reference with a typical drift of ±3 ppm/°C and an on-chip temperature sensor.Serial or Parallel Interface. Versatile parallel (16- or 8-bit bus) or 2-wire serial interface arrangement compatible with 3.3 V or 5 V logic.ApplicationsProcess controlMedical instrumentsHigh speed data acquisitionDigital signal processingInstrumentationSpectrum analysisATE