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参数资料
| 型号： | MAX1178AEUP |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range |
| 中文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO20 |
| 封装： | 4.40 MM, MO-153, TSSOP-20 |
| 文件页数： | 8/14页 |
| 文件大小： | 330K |
| 代理商： | MAX1178AEUP |
M
Power-Down Modes
Select standby mode or shutdown mode with the R/
C
bit during the second falling edge of
CS
(see the
Selecting Standby or Shutdown Mode
section). The
MAX1178/MAX1188 automatically enter either standby
mode (reference and buffer on) or shutdown (reference
and buffer off) after each conversion, depending on the
status of R/
C
during the second falling edge of
CS
.
Internal Clock
The MAX1178/MAX1188 generate an internal conver-
sion clock to free the μP from the burden of running the
SAR conversion clock. Total conversion time (t
CONV
)
after entering hold mode (second falling edge of
CS
) to
end-of-conversion (
EOC
) falling is 4.7μs (max).
Applications Information
Starting a Conversion
CS
and R/
C
control acquisition and conversion in the
MAX1178/MAX1188 (Figure 2). The first falling edge of
CS
powers up the device and puts it in acquire mode if
R/
C
is low. The convert start is ignored if R/
C
is high.
The MAX1178/MAX1188 need at least 12ms for the
internal reference to wake up and settle before starting
the conversion (C
REFADJ
= 0.1μF, C
REF
= 10μF), if
powering up from shutdown.
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
8
_______________________________________________________________________________________
CS
R/C
REF POWER-
DOWN CONTROL
EOC
t
ACQ
t
CONV
t
CSH
t
CSL
t
DH
t
DO
t
EOC
t
DS
t
DV
HBEN
D7/D15
–
D0/D8
HIGH/LOW
BYTE VALID
HIGH/LOW
BYTE VALID
t
DO
t
DO1
HIGH-Z
t
BR
HIGH-Z
Figure 2. MAX1178/MAX1188 Timing Diagram
D0
–
D7
OR
D8
–
D15
μ
P DATA
BUS
AV
DD
DV
DD
AGND DGND
+5V ANALOG
+5V DIGITAL
ANALOG INPUT
AIN
HBEN
EOC
CS
R/C
REF
REFADJ
HIGH
BYTE
LOW
BYTE
10
μ
F
0.1
μ
F
0.1
μ
F
0.1
μ
F
MAX1178
MAX1188
Figure 3. Typical Operating Circuit for the MAX1178/MAX1188
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1178AEUP+ | 功能描述:模数转换器 - ADC 16-Bit 135ksps 4.2V 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 |
| MAX1178AEUP+T | 功能描述:模数转换器 - ADC 16-Bit 135ksps 4.2V 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 |
| MAX1178AEUP-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 |
| MAX1178BCUP | 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 |
| MAX1178BCUP+ | 功能描述:模数转换器 - ADC 16-Bit 135ksps 4.2V 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 |
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