参数资料
型号: MAX1368ECM+
厂商: Maxim Integrated
文件页数: 20/36页
文件大小: 0K
描述: IC PANEL METER 3.5 DIG 48LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 250
显示器类型: LED
配置: 7 段显示
接口: 串行
数字或字符: A/D,3.5 位数字
电源电压: 2.7 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 托盘
Microcontroller-Interface, 4.5-/3.5-Digit Panel
Meters with 4–20mA Output
LED
ADC
RESULT
LED
ADC
RESULT
1 - - - - > 4E1Fh
1---
> 7CFh
19,999
2
1
0
-0
-1
-2
-19,999
-1----
4E1Fh
0002h
0001h
0000h
FFFFh
FFFEh
FFFDh
B1E0h
< B1E0h
1999
2
1
0
-0
-1
-2
-1999
-1---
7CFh
002h
001h
000h
FFFh
FFEh
FFDh
830h
< 830h
-2V
-100 μ V 0 +100 μ V
+2V
-200mV
-100 μ V 0 +100 μ V
+200mV
ANALOG INPUT VOLTAGE
Figure 16. MAX1366 Transfer Function—±2V Range
ANALOG INPUT VOLTAGE
Figure 18. MAX1368 Transfer Function—±200mV Range
LED
ADC
LED
ADC
RESULT
1 - - - - > 4E1Fh
RESULT
1 - - - > 7CFh
19,999
2
1
0
-0
-1
-2
-19,999
4E1Fh
0002h
0001h
0000h
FFFFh
FFFEh
FFFDh
B1E0h
1999
2
1
0
-0
-1
-2
-1999
7CFh
002h
001h
000h
FFFh
FFEh
FFDh
830h
- 1 - - - - < B1E0h
- 1 - - - < 830h
-200mV
-10 μ V 0 +10 μ V
+200mV
-2V
-1mV 0 +1mV
+2V
ANALOG INPUT VOLTAGE
Figure 17. MAX1366 Transfer Function—±200mV Range
5.2V Linear Regulator with Compensation
The MAX1366/MAX1368 feature a 5.2V linear regulator.
The 5.2V regulator consists of an op amp and connec-
tions to an external depletion-mode FET. The 5.2V reg-
ulator regulates the loop voltage that powers the
voltage-to-current converter and the rest of the trans-
mitter circuitry. The regulator output voltage is available
at REG_VDD and is given by the equation:
V REG_VDD = 2.54 x V REF+
ANALOG INPUT VOLTAGE
Figure 19. MAX1368 Transfer Function—±2V Range
The FET breakdown and saturation voltages determine
the usable range of loop voltages (V EXT ). The external
FET parameters such as V GS (off), I DSS , and transcon-
ductance must be chosen so that the op amp output on
the REG_FORCE pin can control the FET operating
point while swinging in the range from VREG_AMP to
REG_VDD. See the Selecting Depletion Mode FET
section in the Applications Information section.
Connect a 0.1μF capacitor between CMP and
REG_FORCE to ensure stable operation of the regulator.
20
______________________________________________________________________________________
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MAX1368ECM+ 功能描述:LED显示驱动器 Stand-Alone 3.5Digit Panel Meters RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX1368ECM+T 功能描述:LED显示驱动器 Stand-Alone 3.5Digit Panel Meters RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX1368ECM-T 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX136C/D 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
MAX136CJL 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