參數(shù)資料
型號： MAX1425EAI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 0.5C Digital Out Temperature Sensor 8-MSOP -40 to 125
中文描述： 2-CH 10-BIT FLASH METHOD ADC, PARALLEL ACCESS, PDSO28
封裝： 5.30 MM, 0.65 MM PITCH, SSOP-28
文件頁數(shù)： 11/16頁
文件大?。?/td> 212K
代理商： MAX1425EAI
M
10-Bit, 20Msps ADC
______________________________________________________________________________________
11
and REFN. In this mode, the voltages at these pins
are set to their nominal values (see
Electrical
Characteristics
). The reference voltage levels can be
adjusted externally by applying a voltage at REFIN.
This allows other input levels to be used as well. The
full external reference mode is entered when REFIN =
AGND. External voltages can be applied to REFP,
CML, and REFN. In this mode, the internal reference
shuts down, resulting in less overall power consump-
tion.
Clock Input (CLK)
CLK is TTL/CMOS-compatible. Since the interstage
conversion of the device depends on the rising and
falling edges of the external clock, use a clock with low
jitter and fast rise and fall times (<2ns). Low clock jitter
improves SNR performance. The MAX1425 operates
with a 50% duty cycle. If the clock has a duty cycle
other than 50%, the clock must meet the specifications
for high and low periods as stated in the
Electrical
Characteristics
.
Output Enable/Power-Down Function
(
OE
/PD) and Output Data
All data outputs, D0 through D9, are TTL/CMOS-logic
compatible. There is a 5.5 clock-cycle latency between
the start convert signal and the valid output data. The
output coding for the MAX1425 is in binary two’s com-
plement format, which has the MSB inverted (Table 1).
The digital output goes into a high-impedance state
and the device into a low-power mode when
OE
/PD
goes high. For normal operation, drive
OE
low. The out-
puts are not designed to drive high capacitances or
n - 6
n
n - 5
n + 1
n - 4
n + 2
n - 3
n + 3
n - 2
n + 4
n - 1
n + 5
n
n + 6
n + 1
n + 7
5.5 CLOCK-CYCLE LATENCY
ANALOG INPUT
CLOCK INPUT
DATA OUTPUT
Figure 3. System Timing Diagram
Figure 4. Output Timing Diagram
DATA 0
INPUT
CLK
OUTPUT
DATA
t
OD
t
CLK
t
CH
t
CI
DATA 1
DATA 2
1 1 1 1 1 1 1 1 1 1
-1 LSB
1 1 1 0 0 0 0 0 0 0
-1/4 Full Scale
1 1 0 0 0 0 0 0 0 0
-1/2 Full Scale
0 1 0 0 0 0 0 0 0 0
+1/2 Full Scale
0 0 1 0 0 0 0 0 0 0
+1/4 Full Scale
0 0 0 0 0 0 0 0 0 1
+1 LSB
0 0 0 0 0 0 0 0 0 0
Bipolar Zero
0 1 1 0 0 0 0 0 0 0
+3/4 Full Scale
0 1 1 1 1 1 1 1 0 1
+Full Scale 2LSB
0 1 1 1 1 1 1 1 1 0
+Full Scale 1LSB
0 1 1 1 1 1 1 1 1 1
+Full Scale
OUTPUT CODE
(TWO’S COMPLEMENT)
DIFFERENTIAL INPUT
Table 1. MAX1425 Output Code
1 0 1 0 0 0 0 0 0 0
-3/4 Full Scale
1 0 0 0 0 0 0 0 0 1
-Full Scale + 1LSB
1 0 0 0 0 0 0 0 0 0
-Full Scale
相關(guān)PDF資料
PDF描述
MAX1425CAI 10-Bit, 20Msps ADC
MAX1426 10-Bit, 10Msps ADC
MAX1426CAI 0.5C Digital Out Temperature Sensor 8-MSOP -40 to 125
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MAX1427 15-Bit, 65Msps ADC with -78.2dBFS Noise Floor for IF Applications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1425EAI+ 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
MAX1425EAI+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC NULL 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
MAX1425EAI-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
MAX1425EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Evaluation Kit for the MAX1425 MAX1426 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX1426EAI 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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