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參數(shù)資料
| 型號(hào)： | MX7824CQ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | TRANS ARRAY PNP/NPN SSS MINI-6P |
| 中文描述： | 4-CH 8-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP24 |
| 封裝： | CERDIP-24 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 106K |
| 代理商： | MX7824CQ |
M
_____________Analog Considerations
Referenc e and Input
The V
REF
+ and V
REF
- inputs of the converter define the
zero and the full-scale of the ADC. In other words, the
voltage at V
REF
- is equal to the input voltage that pro-
duces an output code of all zeros, and the voltage at
V
REF
+ is equal to input voltage that produces an output
code of all ones (Figure 7).
Figure 8 shows some possible reference configura-
tions. For the MAX154/MAX158, a 0.01μF bypass
capacitor to GND should be used to reduce the high-
frequency output impedance of the internal reference.
Larger capacitors should not be used, as this degrades
the stability of the reference buffer. The 2.5V reference
output is with respect to the GND pin.
Bypassing
A 47μF electrolytic and 0.1μF ceramic capacitor should
be used to bypass the V
DD
pin to GND. These capaci-
tors must have minimum lead length, since excess lead
length may contribute to conversion errors and instability.
If the reference inputs are driven by long lines, they
should be bypassed to GND with 0.1μF capacitors at
the reference input pins.
CMOS , High-S peed, 8-Bit ADCs
with Multiplexer
8
_______________________________________________________________________________________
DATA
NEW
DATA
ADDR
VALID
INT
RDY
RD
ANALOG
CHANNEL
ADDRESS
CS
t
AS
t
AH
t
RDY
t
ACCI
t
CRD
t
RD
t
CSS
t
RD
t
RDY
t
INTH
t
DH
t
AH
t
INTH
t
AS
t
P
t
CSS
t
CSH
ADDR
VALID
OLD
DATA
t
DH
t
CSH
t
ACCI
Figure 6. Mode 1 Timing Diagram
11111111
11111110
11111101
00000011
00000010
00000001
00000000
1
V
REF
-
2
3
FS
V
REF
+
FS–1LSB
OUTPUT
CODE
FULL-SCALE
TRANSITION
1LSB = F8 = V
+ - V
-
256 256
AIN INPUT VOLTAGE
(IN TERMS OF LSBs)
Figure 7. Transfer Function
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MX7824KCAG | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:CMOS, High-Speed, 8-Bit ADCs with Multiplexer |
| MX7824KCWG | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MX7824KCWG+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 4Ch Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MX7824KCWG+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 4Ch Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MX7824KCWG-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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