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参数资料
| 型号： | MAX194BEPE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 85KSPS SHTDN 16-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 位数： | 14 |
| 采样率（每秒）： | 85k |
| 数据接口： | QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 80mW |
| 电压电源： | 模拟和数字，双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
| 输入数目和类型： | 1 个单端，单极；1 个单端，双极 |
MAX194
REF and AIN Input Protection
The REF and AIN signals should not exceed the
MAX194 supply rails. If this can occur, diode clamp the
signal to the supply rails. Use silicon diodes and a 10
current-limiting resistor (Figures 10 and 12) or Schottky
diodes without the resistor.
When using the current-limiting resistor, place the resis-
tor between the appropriate input (AIN or REF) and any
bypass capacitor. While this results in AC transients at
the input due to dynamic input currents, the transients
settle quickly and do not affect conversion results.
Improperly placing the bypass capacitor directly at the
input forms an RC lowpass filter with the current-limiting
resistor, which averages the dynamic input current and
causes linearity errors.
Analog Input
The MAX194 uses a capacitive DAC that provides an
inherent track/hold function. The input impedance is
typically 30
in series with 250pF in unipolar mode and
50
in series with 125pF in bipolar mode.
Input Range
The analog input range can be either unipolar (0V to
VREF) or bipolar (-VREF to VREF), depending on the
state of the BP/UP/SHDN pin (see
Digital Interface sec-
tion). The reference range is 0V to VDDA. When choos-
ing the reference voltage, the equivalent MAX194 input
noise (40VRMS in unipolar mode, 80VRMS in bipolar
mode) should be considered.
14-Bit, 85ksps ADC with 10A Shutdown
14
______________________________________________________________________________________
MAX427
4
7
6
2
3
IN
+15V
-15V
0.0033
F
0.1
F
0.1
F
ELANTEC
EL2003
4
1
7
+15V
-15V
0.1
F
0.1
F
100pF
1k
1N914
+5V
-5V
AIN
10
MAX400
4
7
6
2
3
IN
+15V
-15V
1.0
F
0.1
F
0.1
F
1000pF
1k
100
AIN
1N914
+5V
-5V
10
Figure 14. MAX400 Drives AIN for Low-Frequency Use
Figure 15. AIN Buffer for AC/DC Use
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX194BEPE+ | 功能描述:模数转换器 - ADC 14Bit 85ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX194BEWE | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX194BEWE+ | 功能描述:模数转换器 - ADC 14Bit 85ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX194BEWE+T | 功能描述:模数转换器 - ADC 14Bit 85ksps 5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX194BEWE-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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