参数资料
型号: MAX197BCNI+
厂商: Maxim Integrated Products
文件页数: 14/16页
文件大小: 0K
描述: IC DAS 8CH 12BIT 5V 28-DIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 14
类型: 数据采集系统(DAS)
分辨率(位): 12 b
采样率(每秒): 100k
数据接口: 并联
电压电源: 单电源
电源电压: 4.75 V ~ 5.25 V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 28-DIP(0.300",7.62mm)
供应商设备封装: 28-PDIP
包装: 管件
产品目录页面: 1393 (CN2011-ZH PDF)
MAX197
Multi-Range (±10V, ±5V, +10V, +5V),
Single +5V, 12-Bit DAS with 8+4 Bus Interface
_______________________________________________________________________________________
7
______________________________________________________________Pin Description
Digital Ground
DGND
28
+5V Supply. Bypass with 0.1F capacitor to AGND.
VDD
27
INT goes low when conversion is complete and output data is ready.
INT
24
Bandgap Voltage-Reference Output/External Adjust Pin. Bypass with a 0.01F capacitor to AGND. Connect
to VDD when using an external reference at the REF pin.
REFADJ
25
Reference Buffer Output/ADC Reference Input. In internal reference mode, the reference buffer provides a
4.096V nominal output, externally adjustable at REFADJ. In external reference mode, disable the internal
buffer by pulling REFADJ to VDD.
REF
26
Three-State Digital I/O. D2 output (HBEN = low), D10 output (HBEN = high).
D2/D10
12
Three-State Digital I/O. D1 output (HBEN = low), D9 output (HBEN = high).
D1/D9
13
Three-State Digital I/O. D0 output (HBEN = low), D8 output (HBEN = high). D0 = LSB.
D0/D8
14
Analog Ground
AGND
15
Analog Input Channels
CH0–CH7
16–23
Used to multiplex the 12-bit conversion result. When high, the 4 MSBs are multiplexed on the data bus;
when low, the 8 LSBs are available on the bus.
HBEN
5
Shutdown. Puts the device into full power-down (FULLPD) mode when pulled low.
SHDN
6
Three-State Digital I/O
D7–D4
7–10
Three-State Digital I/O. D3 output (HBEN = low), D11 output (HBEN = high).
D3/D11
11
If CS is low, a falling edge on RD will enable a read operation on the data bus.
RD
4
When CS is low, in the internal acquisition mode, a rising edge on WR latches in configuration data and starts an
acquisition plus a conversion cycle. When CS is low, in the external acquisition mode, the first rising edge on
WR starts an acquisition and a second rising edge on WR ends acquisition and starts a conversion cycle.
WR
3
PIN
Chip Select, active low.
CS
2
Clock Input. In external clock mode, drive CLK with a TTL/CMOS compatible clock. In internal clock mode,
place a capacitor from this pin to ground to set the internal clock frequency; fCLK = 1.56MHz typical with
CCLK = 100pF.
CLK
1
FUNCTION
NAME
100k
510k
24k
REFADJ
+5V
0.01
F
MAX197
Figure 1. Reference-Adjust Circuit
3k
3k
DOUT
+5V
a. HIGH-Z TO VOH AND VOL TO VOH
b. HIGH-Z TO VOL AND VOH TO VOL
CLOAD
Figure 2. Load Circuits for Enable Time
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相关代理商/技术参数
参数描述
MAX197BCNI+ 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V 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
MAX197BCWI 功能描述:模数转换器 - ADC Integrated Circuits (ICs) 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
MAX197BCWI+ 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V 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
MAX197BCWI+T 功能描述:模数转换器 - ADC 12-Bit 8Ch 100ksps 4.18V 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
MAX197BCWI-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