参数资料
型号: AD7952BSTZ
厂商: Analog Devices Inc
文件页数: 11/32页
文件大小: 0K
描述: IC ADC 14BIT DIFF 1MSPS 48-LQFP
标准包装: 1
系列: PulSAR®
位数: 14
采样率(每秒): 1M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 260mW
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 托盘
输入数目和类型: 1 个差分,双极
Data Sheet
AD7952
Rev. A | Page 19 of 32
RD
CS
100nF
AVDD
10F
100nF
10
AGND
DGND
DVDD
OVDD
OGND
CNVST
BUSY
SDOUT
SDCLK
RESET
PD
REFBUFIN
D
CLOCK
AD7952
DIGITAL
INTERFACE
SUPPLY
(2.5V, 3.3V, OR 5V)
ANALOG
SUPPLY (5V)
OVDD
DIGITAL
SUPPLY (5V)
IN+
IN–
NOTE 5
ANALOG
INPUT+
CC
2.7nF
U1
NOTE 1
OB/2C
REFGND
REF
PDBUF
PDREF
100nF
NOTE 3
NOTE 4
NOTE 3
NOTE 7
10F
CREF
22F
NOTES
1. ANALOG INPUTS ARE DIFFERENTIAL (ANTIPHASE). SEE ANALOG INPUTS SECTION.
2. THE AD8021 IS RECOMMENDED. SEE DRIVER AMPLIFIER CHOICE SECTION.
3. THE CONFIGURATION SHOWN IS USING THE INTERNAL REFERENCE. SEE VOLTAGE REFERENCE INPUT/OUTPUT SECTION.
4. A 22F CERAMIC CAPACITOR (X5R, 1206 SIZE) IS RECOMMENDED (FOR EXAMPLE, PANASONIC ECJ4YB1A226M).
SEE VOLTAGE REFERENCE INPUT/OUTPUT SECTION.
5. OPTIONAL, SEE POWER SUPPLIES SECTION.
6. THE VCC AND VEE SUPPLIES SHOULD BE VCC = [VIN(MAX) + 2V] AND VEE = [VIN(MIN) – 2V] FOR BIPOLAR INPUT RANGES.
FOR UNIPOLAR INPUT RANGES, VEE CAN BE 0V. SEE POWER SUPPLIES SECTION.
7. OPTIONAL LOW JITTER CNVST, SEE CONVERSION CONTROL SECTION.
8. A SEPARATE ANALOG AND DIGITAL GROUND PLANE IS RECOMMENDED, CONNECTED TOGETHER DIRECTLY UNDER THE ADC.
SEE LAYOUT GUIDELINES SECTION.
ANALOG
INPUT–
NOTE 2
VCC
VEE
10F
100nF
+7V TO +15.75V
SUPPLY
10F
100nF
–7V TO –15.75V
SUPPLY
NOTE 6
HW/SW
SCCS
SCCLK
SCIN
BIPOLAR
TEN
SERIAL
PORT 1
SERIAL
PORT 2
WARP
IMPULSE
CC
2.7nF
U1
NOTE 2
0
6589-
027
15
33
AGND
DGND
NOTE 8
SER/PAR
MicroConverter/
MICROPROCESSOR/
DSP
Figure 27. Typical Connection Diagram Shown with Serial Interface and Serial Programmable Port
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