參數(shù)資料
型號: AD7983BRMZ-RL7
廠商: Analog Devices Inc
文件頁數(shù): 5/24頁
文件大?。?/td> 0K
描述: IC ADC 16BIT 1.33MSPS 10MSOP
標準包裝: 1,000
系列: PulSAR®
位數(shù): 16
采樣率(每秒): 1.33M
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 12mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-MSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 1 個差分,單極
AD7983
Rev. A | Page 13 of 24
Transfer Functions
The ideal transfer characteristic for the AD7983 is shown in
000 ... 000
000 ... 001
000 ... 010
111 ... 101
111 ... 110
111 ... 111
–FSR
–FSR + 1LSB
–FSR + 0.5LSB
+FSR – 1 LSB
+FSR – 1.5 LSB
ANALOG INPUT
AD
C
CO
DE
(
S
T
RA
IG
HT
BI
NA
RY
)
0
69
74-
0
07
Figure 22. ADC Ideal Transfer Function
Table 7. Output Codes and Ideal Input Voltages
Analog Input
Description
VREF = 5 V
Digital Output Code (Hex)
FSR 1 LSB
4.999924 V
Midscale + 1 LSB
2.500076 V
8001
Midscale
2.5 V
8000
Midscale 1 LSB
2.499924 V
7FFF
FSR + 1 LSB
76.3 μV
0001
FSR
0 V
1 This is also the code for an overranged analog input (VIN+ VIN above VREF VGND).
2 This is also the code for an underranged analog input (VIN+ VIN below VGND).
TYPICAL CONNECTION DIAGRAM
Figure 23 shows an example of the recommended connection
diagram for the AD7983 when multiple supplies are available.
AD7983
3- OR 4-WIRE INTERFACE
2.5V
V+
20
V+
V–
0 TO VREF
1.8V TO 5V
100nF
10F2
2.7nF
4
100nF
REF
IN+
IN–
VDD
VIO
SDI
CNV
SCK
SDO
GND
REF1
1SEE THE VOLTAGE REFERENCE INPUT SECTION FOR REFERENCE SELECTION.
2CREF IS USUALLY A 10F CERAMIC CAPACITOR (X5R).
3SEE THE DRIVER AMPLIFIER CHOICE SECTION.
4OPTIONAL FILTER. SEE THE ANALOG INPUTS SECTION.
5SEE THE DIGITAL INTERFACE SECTION FOR THE MOST CONVENIENT INTERFACE MODE.
06
97
4-
0
08
Figure 23. Typical Application Diagram with Multiple Supplies
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