參數資料
| 型號： | AD7622BCPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/28頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT DIFFERENTL 48-LFCSP |
| 標準包裝： | 1 |
| 系列： | PulSAR® |
| 位數： | 16 |
| 采樣率（每秒）： | 2M |
| 數據接口： | 串行，并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 85mW |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 48-LFCSP-VQ（7x7） |
| 包裝： | 托盤 |
| 輸入數目和類型： | 1 個差分，雙極 |
| 配用： | EVAL-AD7622CBZ-ND - BOARD EVALUATION FOR AD7622 |
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16-Bit, 1.5 LSB INL, 2 MSPS PulSAR ADC
AD7622
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
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
www.analog.com
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
FEATURES
Throughput
2 MSPS (wideband warp and warp mode)
1.5 MSPS (normal mode)
INL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm of FSR)
16-bit resolution with no missing codes
Dynamic range: 92.5 dB typical
SINAD: 91 dB minimum @ 20 kHz (VREF = 2.5 V)
THD: 115 dB typical @ 20 kHz (VREF = 2.5 V)
2.048 V internal reference: typical drift 8 ppm/°C; TEMP output
Differential input range: ±VREF (VREF up to 2.5 V)
No pipeline delay (SAR architecture)
Parallel (16-, or 8-bit bus) and serial 5 V/3.3 V/2.5 V interface
SPI/QSPI/MICROWIRE/DSP compatible
Single 2.5 V supply operation
Power dissipation
70 mW typical @ 2 MSPS with internal REF
2 μW in power-down mode
Pb-free, 48-lead LQFP and 48-lead LFCSP_VQ
Pin compatible with other PulSAR 48-lead ADCs
APPLICATIONS
Medical instruments
High speed data acquisition/high dynamic data acquisition
Digital signal processing
Spectrum analysis
Instrumentation
Communications
ATE
GENERAL DESCRIPTION
The AD7622 is a 16-bit, 2 MSPS, charge redistribution SAR,
fully differential, analog-to-digital converter (ADC) that
operates from a single 2.5 V power supply. The part 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. It features two
very high sampling rate modes (wideband warp and warp) and
a fast mode (normal) for asynchronous rate applications. The
AD7622 is hardware factory calibrated and tested to ensure ac
parameters, such as signal-to-noise ratio (SNR), in addition to
the more traditional dc parameters of gain, offset, and linearity.
The AD7622 is available in Pb-free only packages with
operation specified from 40°C to +85°C.
FUNCTIONAL BLOCK DIAGRAM
0
602
3-
0
01
16
CONTROL LOGIC AND
CALIBRATION CIRCUITRY
CLOCK
AD7622
DGND
DVDD
AVDD
AGND
REF REFGND
IN+
IN–
PD
RESET
CNVST
PDBUF
REFBUFIN
PDREF
REF
TEMP
D[15:0]
RD
CS
BYTESWAP
OGND
OVDD
BUSY
SER/PAR
REF AMP
NORMAL
SERIAL
PORT
PARALLEL
INTERFACE
SWITCHED
CAP DAC
WARP
OB/2C
Figure 1.
Table 1. PulSAR 48-Lead ADC Selection
Type/kSPS
100 to
250
500 to
570
650 to
1000
>1000
Pseudo
Differential
True Bipolar
True
Differential
AD7622,
18-Bit
Multichannel/
Simultaneous
1.50
–0.50
0
0.50
1.00
–1.50
–1.00
0
16384
32768
49152
65536
06
02
3-
0
05
IN
L
(
L
S
B
)
CODE
POSITIVE INL = +0.43 LSB
NEGATIVE INL = –0.49 LSB
Figure 2. Integral Nonlinearity vs. Code
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| AD7622BCPZRL | 功能描述:IC ADC 16BIT DIFFERENTL 48-LFCSP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:PulSAR® 標準包裝:1 系列:- 位數:14 采樣率（每秒）:83k 數據接口:串行，并聯 轉換器數目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應商設備封裝:28-PDIP 包裝:管件 輸入數目和類型:1 個單端，雙極 |
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