AD7631BSTZ

Semiconductors - ICs

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> Analog-to-Digital Converters - ADC

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Series Information for AD7631BSTZ - Analog Devices

Features

  • feature
    Multiple pins/software-programmable input ranges +5 V (10 V p-p), +10 V (20 V p-p), u00b15 V (20 V p-p), u00b110 V (40 V p-p) Pins or serial SPI-compatible input ranges/mode selection Throughput: 250 kSPS INL: u00b11.5 LSB typical, u00b12.5 LSB maximum (u00b19.5 ppm of FSR) 18-bit resolution with no missing codes Dynamic range: 102.5 dB SNR: 101 dB @ 2 kHz THD: u2212112 dB @ 2 kHz iCMOSu00ae process technology 5 V internal reference: typical drift 3 ppm/u00b0C; TEMP output No pipeline delay (SAR architecture) Parallel (18-/16-/8-bit bus) and serial 5 V/3.3 V interface SPI-/QSPIu2122-/MICROWIREu2122-/DSP-compatible Power dissipation 73 mW @ 250 kSPS 10 mW @ 1 kSPS Pb-free, 48-lead LQFP and 48-lead LFCSP (7 mm u00d7 7 mm)

Description

18BIT ADC PULSAR 250KSPS LQFP48

The AD7631 is an 18-bit, charge redistribution, successive approximation register (SAR), architecture analog-to-digital converter (ADC) fabricated on Analog Devices, Inc.’s iCMOS 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 AD7631 contains a high speed 18-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 on CNVST samples the fully differential analog inputs on IN+ and IN−. The AD7631 features four different analog input ranges. Power is scaled linearly with throughput. Operation is specified from −40°C to +85°C.

Specifications

Resolution (Bits):
18bit
Sampling Rate:
250kSPS
Input Channel Type:
Differential
Data Interface:
Parallel Serial SPI
Supply Voltage Type:
Dual (+/-)
Supply Voltage Min:
5V
Supply Voltage Max:
15V
ADC / DAC Case Style:
LQFP
No. of Pins:
48Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Single 8-Bit SAR ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
Base Number:
631
Conversion Time:
1.68µs
IC Case Style:
QFP
Linearity Error ADC / DAC +:
2.5LSB
No. of Bits:
18bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Supply Current:
8.5mA
Supply Voltage Range:
2.7V to 5.25V 4.75V to 5.25V 0V to ± 15.75V
Supply Voltage Range - Analogue:
4.75V to 5.25V 7V to 15.75V
Supply Voltage Range - Digital:
2.7V to 5.25V 4.75V to 5.25V
Termination Type:
Surface Mount Device

Alternate Descriptions

Richardson RFPD
CONVERTER - ADC