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Analog Devices - Unipolar/Bipolar Programmable Input PulSAR ADC

Numéro de référence AD7610
Description Unipolar/Bipolar Programmable Input PulSAR ADC
Fabricant Analog Devices 
Logo Analog Devices 





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AD7610 fiche technique
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16-Bit, 250 kSPS, Unipolar/Bipolar
Programmable Input PulSAR® ADC
AD7610
FEATURES
Multiple pins/software programmable input ranges:
5 V, 10 V, ±5 V, ±10 V
Pins or serial SPI®-compatible input ranges/mode selection
Throughput: 250 kSPS
16-bit resolution with no missing codes
INL: ±0.75 LSB typ, ±1.5 LSB max (±23 ppm of FSR)
SNR: 94 dB @ 2 kHz
iCMOS® process technology
5 V internal reference: typical drift 3 ppm/°C;
On-chip temperature sensor
No pipeline delay (SAR architecture)
Parallel (16- or 8-bit bus) and serial 5 V/3.3 V interface
SPI-/QSPI™-/MICROWIRE™-/DSP-compatible
Power dissipation
90 mW @ 250 kSPS
10 mW @ 1 kSPS
48-lead LQFP and LFCSP (7 mm × 7 mm) packages
APPLICATIONS
Process control
Medical instruments
High speed data acquisition
Digital signal processing
Instrumentation
Spectrum analysis
ATE
FUNCTIONAL BLOCK DIAGRAM
TEMP REFBUFIN REF REFGND VCC VEE DVDD DGND
AGND
AVDD
PDREF
PDBUF
IN+
IN–
REF
REF
AMP
SWITCHED
CAP DAC
CNVST
PD
RESET
CLOCK
CONTROL LOGIC AND
CALIBRATION CIRCUITRY
AD7610
SERIAL
DATAPORT
SERIAL
CONFIGURATION
PORT
16
PARALLEL
INTERFACE
OVDD
OGND
D[15:0]
SER/PAR
BYTESWAP
OB/2C
BUSY
RD
CS
BIPOLAR TEN
Figure 1.
GENERAL DESCRIPTION
The AD7610 is a 16-bit charge redistribution successive approxi-
mation 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 AD7610 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 on CNVST samples the
analog input on IN+ with respect to a ground sense, IN−. The
AD7610 features four different analog input ranges: 0 V to 5 V, 0 V
to 10 V, ±5 V, and ±10 V. Power consumption is scaled linearly
with throughput. The device is available in Pb-free 48-lead, low-
profile quad flat package (LQFP) and a lead frame chip-scale
(LFCSP_VQ) package. Operation is specified from −40°C to
+85°C.
Table 1. 48-Lead 14-/16-/18-Bit PulSAR Selection
Type
100 kSPS to 500 kSPS to 800 kSPS to
250 kSPS
570 kSPS
1000 kSPS
Pseudo
Differential
AD7651
AD7660
AD7661
AD7650
AD7652
AD7664
AD7666
AD7653
AD7667
True Bipolar
AD7610
AD7663
AD7665
AD7612
AD7671
AD7951
True
Differential
AD7675
AD7676
AD7677
18-Bit, True
Differential
Multichannel/
Simultaneous
AD7678
AD7679
AD7654
AD7655
AD7674
>1000
kSPS
AD7621
AD7622
AD7623
AD7641
AD7643
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.

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