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参数资料
| 型号： | MAX1167-MAX1168 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| 中文描述： | 多通道，16位，速度高达200ksps模拟数字转换器 |
| 文件页数： | 12/30页 |
| 文件大小： | 462K |
| 代理商： | MAX1167-MAX1168 |
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M
Track/Hold (T/H)
In track mode, the analog signal is acquired on the
internal hold capacitor. In hold mode, the T/H switches
open and the capacitive digital-to-analog converter
(DAC) samples the analog input.
During the acquisition, the analog input (AIN_) charges
capacitor C
DAC
. At the end of the acquisition interval
the T/H switches open. The retained charge on C
DAC
represents a sample of the input.
In hold mode, the capacitive DAC adjusts during the
remainder of the conversion cycle to restore node
ZERO to zero within the limits of 16-bit resolution. At the
end of the conversion, force
CS
high and then low to
reset the T/H switches back to track mode (AIN_),
where C
DAC
charges to the input signal again.
The time required for the T/H to acquire an input signal
is a function of how quickly its input capacitance is
charged. If the input signal
’
s source impedance is high,
the acquisition time lengthens and more time must be
allowed between conversions. The acquisition time
(t
ACQ
) is the maximum time the device takes to acquire
the signal. Use the following formula to calculate acqui-
sition time:
t
ACQ
= 11(R
S
+ R
IN
+ R
DS(ON)
)
45pF + 0.3μs
where R
IN
= 340
, R
S
= the input signal
’
s source
impedance, R
DS(ON)
= 60
, and t
ACQ
is never less
than 729ns. A source impedance of less than 200
does not significantly affect the ADC
’
s performance.
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
12
______________________________________________________________________________________
REFERENCE
REF
REFCAP
AV
DD
DV
DD
AGND
AGND
DGND
AIN0
AIN1
AIN2
AIN3
SCLK
CS
DIN
ANALOG-INPUT
MULTIPLEXER
MULTIPLEXER
CONTROL
ACCUMULATOR
MEMORY
INPUT REGISTER
BIAS
OSCILLATOR
OUTPUT
DOUT
EOC
ANALOG-SWITCH FINE TIMING
SUCCESSIVE-APPROXIMATION
REGISTER
MAX1167
DAC
BUFFER
AZ
RAIL
COMPARATOR
Figure 3. MAX1167 Functional Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1168CEEG | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1167ACEE | TRANS NPN 50VCEO 1A TO-92L |
| MAX1167BCEE | TRANS NPN 20VCEO 1A TO-92L |
| MAX1168ACEG | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1168BCEG | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1168 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1168ACEG | 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 |
| MAX1168ACEG+ | 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 |
| MAX1168ACEG+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 |
| MAX1168ACEG-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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