参数资料
型号: MAX187CEWE+T
厂商: Maxim Integrated Products
文件页数: 15/18页
文件大小: 0K
描述: IC ADC 12BIT SERIAL LP 16SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1,000
位数: 12
采样率(每秒): 75k
数据接口: MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 478mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 带卷 (TR)
输入数目和类型: 1 个单端,单极
MAX187/MAX189
+5V, Low-Power, 12-Bit Serial ADCs
6
Maxim Integrated
Pin Description
Pin Configurations
PIN
NAME
FuNCTION
PDIP
WIDE SO
1
VDD
Supply Voltage. +5V, Q5%
2
3
AIN
Sampling Analog Input. 0V to VREF range
3
6
SHDN
Three-Level Shutdown Input. Pulling SHDN low shuts the MAX187/MAX189 down to 10FA
(max) supply current. Both MAX187 and MAX189 are fully operational with either SHDN
high or unconnected. For the MAX187, pulling SHDN high enables the internal reference,
and letting SHDN unconnected disables the internal reference and allows for the use of an
external reference.
4
8
REF
Reference Voltage—sets analog voltage range and functions as a 4.096V output for the
MAX187 with enabled internal reference. REF also serves as a +2.5V to VDD input for a
precision reference for both MAX187 (disabled internal reference) and MAX189. Bypass
with 4.7FF if internal reference is used, and with 0.1FF if an external reference is applied.
5
GND
Analog and Digital Ground
10
AGND
Analog Ground
11
DGND
Digital Ground
6
12
DOUT
Serial Data Output. Data changes state at SCLK’s falling edge.
7
15
CS
Active-Low Chip Select. Initiates conversions on the falling edge. When CS is high, DOUT is
high impedance.
8
16
SCLK
Serial Clock Input. Clocks data out with rates up to 5MHz.
2, 4, 5, 7,
9, 13. 14
N.C.
No Connection. Not internally connected. Connect to AGND for best noise performance.
REF
GND
1
2
8
7
VDD
AIN
DOUT
SCLK
PDIP
TOP VIEW
3
4
6
5
MAX187
MAX189
MAX187
MAX189
SHDN
CS
+
N.C.
1
2
16
15
SCLK
+
CS
N.C.
AIN
VDD
Wide SO
3
4
14
13
DGND
AGND
N.C.
512 DOUT
N.C.
SHDN 6
7
11
10
N.C.
REF 89
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