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参数资料
| 型号： | MAX1167CCEE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| 中文描述： | 4-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16 |
| 文件页数： | 11/30页 |
| 文件大小： | 462K |
| 代理商： | MAX1167CCEE |
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Detailed Description
The MAX1167/MAX1168 low-power, multichannel, 16-bit
ADCs feature a successive-approximation ADC, auto-
matic power-down, integrated +4.096V reference, and a
high-speed SPI/QSPI/MICROWIRE-compatible interface.
A DSPR input and DSPX output allow the MAX1168 to
communicate with digital signal processors (DSPs) with
no external glue logic. The MAX1167/MAX1168 operate
with a single +5V analog supply and feature a separate
digital supply, allowing direct interfacing with +2.7V to
+5.5V digital logic.
Figures 3 and 4 show the functional diagrams of the
MAX1167/MAX1168, and Figures 5 and 6 show the
MAX1167/MAX1168 in a typical operating circuit. The
serial interface simplifies communication with micro-
processors (μPs).
In external reference mode, the MAX1167/MAX1168
have two power modes: normal mode and shutdown
mode. Driving
CS
high places the MAX1167/MAX1168 in
shutdown mode, reducing the supply current to 0.6μA
(typ). Pull
CS
low to place the MAX1167/MAX1168 in
normal operating mode. The internal reference mode
offers software-programmable, power-down options as
shown in Table 5.
In SPI/QSPI/MICROWIRE mode, a falling edge on
CS
wakes the analog circuitry and allows SCLK to clock in
data. Acquisition and conversion are initiated by SCLK.
The conversion result is available at DOUT in unipolar
serial format. DOUT is held low until data becomes
available (MSB first) on the 8th falling edge of SCLK
when in 8-bit transfer mode, and on the 16th falling
edge when in 16-bit transfer mode (see the
Operating
Modes
section). Figure 8 shows the detailed SPI/QSPI/
MICROWIRE serial-interface timing diagram.
In external clock mode, the MAX1168 also interfaces
with DSPs. In DSP mode, a frame-sync pulse from the
DSP initiates a conversion that is driven by SCLK. The
MAX1168 formats a frame-sync pulse to notify the DSP
that the conversion results are available at DOUT in
MSB-first, unipolar, serial-data format. Figure 16 shows
the detailed DSP serial-interface timing diagram (see the
Operating Modes
section).
Analog Input
Figure 7 illustrates the input-sampling architecture of
the ADC. The voltage applied at REF or the internal
+4.096V reference sets the full-scale input voltage.
M
Multichannel, 16-Bit, 200ksps Analog-to-Digital
Converters
______________________________________________________________________________________
11
Pin Description (continued)
PIN
MAX1167
MAX1168
NAME
FUNCTION
—
13
AIN6
Analog Input 6
—
14
AIN7
Analog Input 7
—
23
DSPX
DSP Frame-Sync Transmit Output. A frame-sync pulse at DSPX notifies the DSP that the
MSB data is available at DOUT. Leave DSPX unconnected when not in DSP mode.
—
24
N.C.
No Connection. Not internally connected.
DGND
1mA
C
LOAD
= 30pF
DOUT
DOUT
C
LOAD
= 30pF
1mA
DGND
DV
DD
a) V
OL
TO V
OH
b) HIGH-Z TO V
OL
AND V
OH
TO V
OL
Figure 1. Load Circuits for DOUT Enable Time and SCLK-to-
DOUT Delay Time
DGND
1mA
C
LOAD
= 30pF
DOUT
DOUT
C
LOAD
= 30pF
1mA
DGND
DV
DD
a) V
OH
TO HIGH-Z
b) V
OL
TO HIGH-Z
Figure 2. Load Circuits for DOUT Disable Time
相关PDF资料 |
PDF描述 |
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| MAX1167CEEE | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1168BEEG | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1168CCEG | Multichannel, 16-Bit, 200ksps Analog-to-Digital Converters |
| MAX1170CBH | 12-Bit, 10Msps, TTL-Output ADC |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1167CCEE+ | 功能描述:模数转换器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 16BIT 200KSPS 16-QSOP 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 |
| MAX1167CCEE+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 |
| MAX1167CCEE-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 |
| MAX1167CEEE | 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 |
| MAX1167CEEE+ | 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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