參數(shù)資料
型號(hào)： AD7622
廠商： Analog Devices, Inc.
英文描述： 16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
中文描述： 16位，750 kSPS的，單極/雙極可編程輸入PulSAR系列ADC的
文件頁(yè)數(shù)： 1/32頁(yè)
文件大?。?/td> 587K
代理商： AD7622
16-Bit, 750 kSPS, Unipolar/Bipolar
Programmable Input PulSAR
ADC
AD7612
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
750 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
i
CMOS 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
Power dissipation: 190 mW @ 750 kSPS
Pb-free, 48-lead LQFP and LFCSP (7 mm × 7 mm) packages
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
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
APPLICATIONS
Process control
Medical instruments
High speed data acquisition
Digital signal processing
Instrumentation
Spectrum analysis
ATE
GENERAL DESCRIPTION
The AD7612 is a 16-bit charge redistribution successive
approximation register (SAR), architecture analog-to-digital
converter (ADC) fabricated on Analog Devices, Inc.’s
i
CMOS
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 on CNVST
samples 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.
FUNCTIONAL BLOCK DIAGRAM
0
16
CCONTROL LOGIC AND
CLOCK
AD7612
DGND
DVDD
AVDD
AGND
REF REFGND
IN+
PD
RESET
CNVST
PDBUF
REFBUFIN
PDREF
REF
TEMP
D[15:0]
BUSY
RD
CS
OB/2C
OGND
OVDD
BYTESWAP
SER/PAR
REF
AMP
SERIAL DATA
PORT
PARALLEL
INTERFACE
SWITCHED
CAP DAC
VCC
VEE
WARP IMPULSE BIPOLAR TEN
SERIAL
CONFPORT
IN–
Figure 1.
Table 1. 48-Lead 14-/16-/18-Bit PulSAR Selection
100 kSPS to
250 kSPS
Pseudo
Differential
AD7660
AD7661
Type
500 kSPS to
570 kSPS
AD7650
AD7652
AD7664
AD7666
AD7665
800 kSPS to
1000 kSPS
AD7653
AD7667
>1000
kSPS
AD7651
True Bipolar
AD7663
AD7612
AD7671
AD7677
True
Differential
AD7675
AD7676
AD7621
AD7622
AD7623
AD7641
AD7643
18-Bit, True
Differential
Multichannel/
Simultaneous
PRODUCT HIGHLIGHTS
1.
Programmable input range and mode selection.
Pins or serial port for selecting input range/mode select.
2.
Fast throughput.
In warp mode, the AD7612 is 750 kSPS.
3.
Superior Linearity.
No missing 16-bit code. ±1.5 LSB max INL.
4.
Internal Reference.
5 V internal reference with a typical drift of ±3 ppm/°C
and an on-chip temperature sensor.
5.
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.
AD7678
AD7679
AD7674
AD7654
AD7655
相關(guān)PDF資料
PDF描述
AD7623 16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
AD7643 16-Bit, 750 kSPS, Unipolar/Bipolar Programmable Input PulSAR ADC
AD7656 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
AD7656BSTZ 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
AD7656BSTZ-REEL 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
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