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AD7683 Datasheet(PDF) 1 Page - Analog Devices

Part No. AD7683
Description  16-Bit, 100 kSPS PulSAR ADC in MSOP/QFN
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7683 Datasheet(HTML) 1 Page - Analog Devices

 
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16-Bit, 100 kSPS PulSAR
ADC in MSOP/QFN
AD7683
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
16-bit resolution with no missing codes
Throughput: 100 kSPS
INL: ±1 LSB typ, ±3 LSB max
Pseudodifferential analog input range
0 V to VREF with VREF up to VDD
Single-supply operation: 2.7 V to 5.5 V
Serial interface SPI®/QSPI™/MICROWIRE™/DSP-compatible
Power dissipation : 4 mW @ 5 V, 1.5 mW @ 2.7 V,
150 µW @ 2.7 V/10 kSPS
Standby current: 1 nA
8-lead package: MSOP package and
3 mm × 3 mm QFN1 (LFCSP) (SOT-23 size)
Improved 2nd source to ADS8320 and ADS8325
APPLICATIONS
Battery-powered equipment
Data acquisition
Instrumentation
Medical instruments
Process control
APPLICATION DIAGRAM
AD7683
REF
GND
VDD
+IN
–IN
DCLOCK
DOUT
CS
3-WIRE SPI
INTERFACE
0.5V TO VDD 2.7V TO 5.5V
0 TO VREF
Figure 1.
Table 1. MSOP, QFN (LFCSP)/SOT-23, 16-Bit PulSAR ADC
Type
100 kSPS
250 kSPS
500 kSPS
True Differential
AD7684
AD7687
AD7688
Pseudo
Differential/Unipolar
AD7683
AD7685
AD7694
AD7686
Unipolar
AD7680
GENERAL DESCRIPTION
The AD7683 is a 16-bit, charge redistribution, successive
approximation, PulSAR™ analog-to-digital converter (ADC)
that operates from a single power supply, VDD, between 2.7 V
to 5.5 V. It contains a low power, high speed, 16-bit sampling
ADC with no missing codes (B grade), an internal conversion
clock, and a serial, SPI-compatible interface port. The part also
contains a low noise, wide bandwidth, short aperture delay,
track-and-hold circuit. On the CS falling edge, it samples an
analog input, +IN, between 0 V to REF with respect to a ground
sense, –IN. The reference voltage, REF, is applied externally and
can be set up to the supply voltage. Its power scales linearly with
throughput.
The AD7683 is housed in an 8-lead MSOP or an 8-lead QFN
(LFCSP) package, with an operating temperature specified from
−40°C to +85°C.
1 QFN package in development. Contact factory for samples and availability.


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