參數(shù)資料
型號(hào)： AD7626BCPZ-RL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 0K
描述： IC ADC 16BIT 10MSPS DIFF 32LFCSP
設(shè)計(jì)資源： Single-Ended-to-Differential High Speed Drive Circuit for 16-Bit, 10 MSPS AD7626 ADC (CN0105)
標(biāo)準(zhǔn)包裝： 1,500
位數(shù)： 16
采樣率（每秒）： 10M
數(shù)據(jù)接口： 串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 170mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤(pán)，CSP
供應(yīng)商設(shè)備封裝： 32-LFCSP-VQ（5x5）
包裝： 帶卷 (TR)
輸入數(shù)目和類(lèi)型： 2 個(gè)單端，單極；1 個(gè)差分，雙極
16-Bit, 10 MSPS, PulSAR
Differential ADC
Data Sheet
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
Fax: 781.461.3113
2009–2012 Analog Devices, Inc. All rights reserved.
FEATURES
Throughput: 10 MSPS
SNR: 91.5 dB
16-bit no missing codes
INL: ±0.45 LSB
DNL: ±0.35 LSB
Power dissipation: 136mW
32-lead LFCSP (5 mm × 5 mm)
SAR architecture
No latency/no pipeline delay
16-bit resolution with no missing codes
Zero error: ±1LSB
Differential input range: ±4.096 V
Serial LVDS interface
Self-clocked mode
Echoed-clock mode
LVDS or CMOS option for conversion control (CNV signal)
Reference options
Internal: 4.096 V
External (1.2 V) buffered to 4.096 V
External: 4.096 V
APPLICATIONS
Digital imaging systems
Digital X-ray
Digital MRI
CCD and IR cameras
High speed data acquisition
High dynamic range telecommunications receivers
Spectrum analysis
Test equipment
FUNCTIONAL BLOCK DIAGRAM
AD7626
CLOCK
LOGIC
SERIAL
LVDS
IN–
IN+
REFIN
REF VCM
SAR
÷2
CNV+, CNV–
VIO
D+, D–
DCO+, DCO–
CLK+, CLK–
1.2V
BAND GAP
CAP
DAC
07648-
001
Figure 1.
GENERAL DESCRIPTION
The AD7626 is a 16-bit, 10 MSPS, charge redistribution
successive approximation register (SAR) based architecture
analog-to-digital converter (ADC). SAR architecture allows
unmatched performance both in noise (91.5 dB SNR) and in
linearity (±0.45 LSB INL). The AD7626 contains a high speed,
16-bit sampling ADC, an internal conversion clock, and an
internal buffered reference. On the CNV edge, it samples the
voltage difference between the IN+ and IN pins. The voltages
on these pins swing in opposite phase between 0 V and REF.
The 4.096 V reference voltage, REF, can be generated internally
or applied externally.
All converted results are available on a single LVDS self-clocked
or echoed-clock serial interface, reducing external hardware
connections.
The AD7626 is housed in a 32-lead, 5 mm × 5 mm LFCSP with
operation specified from 40°C to +85°C.
Table 1. Fast PulSAR ADC Selection
Input Type
Resolution (Bits)
1 MSPS to <2 MSPS
2 MSPS to 3 MSPS
6 MSPS
10 MSPS
Differential (Ground Sense)
16
True Bipolar
16
Differential (Antiphase)
16
AD7626
Differential (Antiphase)
18
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