Datasheet ADAS3022-EP (Analog Devices)

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16-Bit, 1 MSPS, 8-Channel Data Acquisition System Enhanced Product ADAS3022-EP FEATURES
an 8-channel, low leakage multiplexer; a high impedance
Ease of use—16-bit, 1 MSPS complete data acquisition system
programmable gain instrumentation amplifier (PGIA) stage with
High impedance, 8-channel input: >500 MΩ
high common-mode rejection; a precision, low drift 4.096 V
Differential input voltage range: ±24.576 V maximum
reference and buffer; and a 16-bit charge redistribution analog-
High input common-mode rejection: >100 dB
to-digital converter (ADC) with a successive approximation
User-programmable input ranges
register (SAR) architecture. The ADAS3022-EP can resolve eight
Channel sequencer with individual channel gains
single-ended inputs or four fully differential inputs up to
On-chip 4.096 V reference and buffer
±24.576 V when using ±15 V supplies. In addition, the device
Auxiliary input—direct interface to PulSAR® ADC inputs
can accept the commonly used bipolar differential, bipolar
No latency or pipeline delay (SAR architecture)
single-ended, pseudo bipolar, or pseudo unipolar input signals,
Serial 4-wire, 1.8 V to 5 V SPI-/SPORT-compatible interface
as shown in Table 1, thus enabling the use of almost any direct
40-Lead LFCSP package (6 mm × 6 mm)
sensor interface.
ENHANCED FEATURES
The ADAS3022-EP simplifies design challenges by eliminating
Supports defense and aerospace applications (AQEC
signal buffering, level shifting, amplification/attenuation,
standard)
common-mode rejection, settling time, and any other analog
Military temperature range (such as −55°C to +105°C)
signal conditioning challenge while allowing a smal er form
Controlled manufacturing baseline
factor, faster time to market, and lower cost.
One assembly/test site
Additional application and technical information can be found
Enhanced product change notification
in the ADAS3022 data sheet.
Qualification data available on request APPLICATIONS Table 1. Typical Input Range Selection Multichannel data acquisition and system monitoring Signal (V) Input Range, VIN (V) Process controls
Differential
Power line monitoring
±1 ±1.28
Automated test equipment
±2.5 ±2.56
Instrumentation
±5 ±5.12 ±10 ±10.24
GENERAL DESCRIPTION
Single Ended The ADAS3022-EP is a complete 16-bit, 1 MSPS, successive 0 to 1 ±1.28 approximation–based, analog-to-digital data acquisition system 0 to 2.5 ±2.56 that is manufactured on Analog Devices, Inc., proprietary iCMOS® 0 to 5 ±5.12 high voltage industrial process technology. The device integrates 0 to 10 ±10.24
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Document Outline Features Enhanced Features Applications General Description Table of Contents Revision History Functional Block Diagram Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Outline Dimensions Ordering Guide