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參數(shù)資料
| 型號： | MAX158AEAI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 8BIT 8CH W/MUX&REF 28SSOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 46 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 400k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉換器數(shù)目： | 3 |
| 功率耗散（最大）： | 75mW |
| 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： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應商設備封裝： | 28-SSOP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 8 個單端，單極 |
MAX154/MAX158
_____________Analog Considerations
Reference and Input
The VREF+ and VREF- inputs of the converter define the
zero and the full-scale of the ADC. In other words, the
voltage at VREF- is equal to the input voltage that pro-
duces an output code of all zeros, and the voltage at
VREF+ is equal to input voltage that produces an output
code of all ones (Figure 7).
Figure 8 shows some possible reference configura-
tions. A 0.01F 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 47F electrolytic and 0.1F ceramic capacitor should
be used to bypass the VDD pin to GND. These capaci-
tors must have minimum lead length, since excess lead
length may contribute to conversion errors and insta-
bility. If the reference inputs are driven by long lines,
they should be bypassed to GND with 0.1F capac-
itors at the reference input pins.
CMOS High-Speed 8-Bit ADCs with
Multiplexer and Reference
8
_______________________________________________________________________________________
DATA
NEW
DATA
ADDR
VALID
INT
RDY
RD
ANALOG
CHANNEL
ADDRESS
CS
tAS
tAH
tRDY
tACCI
tCRD
tRD
tCSS
tRD
tRDY
tINTH
tDH
tAH
tINTH
tAS
tP
tCSS
tCSH
ADDR
VALID
OLD
DATA
tDH
tCSH
tACCI
Figure 6. Mode 1 Timing Diagram
11111111
11111110
11111101
00000011
00000010
00000001
00000000
1
VREF-
23
FS
VREF+
FS–1LSB
OUTPUT
CODE
FULL-SCALE
TRANSITION
1LSB = F8 = VREF+ - VREF-
256
AIN INPUT VOLTAGE
(IN TERMS OF LSBs)
Figure 7. Transfer Function
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX158AEAI+ | 功能描述:模數(shù)轉換器 - ADC 8-Bit 4Ch 400ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX158AEAI+T | 功能描述:模數(shù)轉換器 - ADC 8-Bit 4Ch 400ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX158AEAI-T | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX158AEJI | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX158AEPI | 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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