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参数资料
| 型号： | MAX1367ECM+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/25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： | 2,000 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 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： | 带卷 (TR) |
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
Functional Diagram
AV DD
DV DD INTREF PEAK RANGE DPON DPSET1 DPSET 2 HOLD CS_DAC DACDATA_SEL
LOGIC
+2.5V
SET LEDV
SEGA
AIN+
AIN-
REF+
INPUT
BUFFER
ADC
LED
DRIVER
SEGG
DIG0(1)
DIG4(4)
LED_EN
LEDG
DAC_VDD
REF-
CURRENT
DACVOUT
CONV_IN
-2.5V
2.048V
BANDGAP
OUTPUT
DAC
V/I
CONVERTER
SUMMER
AND
AMPLIFIER
4-20OUT
REFERENCE
NEGV
CHARGE
PUMP
-2.5V
DAC REF
BUFFER
OFFSET
GENERATOR
EN_I
EN_BPM
5V REGULATOR
MAX1365
MAX1367
GND
REFSELE REF_DAC REG_AMP CMP REG_FORCE REG_VDD
Detailed Description
The MAX1365/MAX1367 low-power, highly integrated
ADCs with LED drivers convert a ±2V differential input
voltage (one count is equal to 100μV for the MAX1365
and 1mV for the MAX1367) with a sigma-delta ADC and
output the result to an LED display. An additional
±200mV input range (one count is equal to 10μV for the
MAX1365 and 100μV for the MAX1367) is available to
measure small signals with finer resolution.
In addition to displaying the results on an LED display,
these devices feature a DAC and V-to-I converter for
4–20mA (or 0 to 16mA) current output that proportional-
ly follows the ADC input. The MAX1365/MAX1367 use
an external depletion-mode NMOS transistor to regulate
7V to 30V for the V/I converter. Use the 4–20mA (or 0 to
16mA) output to drive a remote display, data logger,
PLC input, or other 4–20mA devices in a current loop.
The MAX1365/MAX1367 include a 2.048V reference,
internal charge pump, and a high-accuracy on-chip
oscillator. The devices feature on-chip buffers for the dif-
ferential input signal and external-reference inputs,
allowing direct interface with high-impedance signal
sources. In addition, they use continuous internal offset-
calibration and offer > 100dB of 50Hz and 60Hz line-
noise rejection. Other features include data hold and
peak detection and overrange/underrange detection.
Analog Input Protection
The MAX1365/MAX1367 provide internal protection
diodes that limit the analog input range on AIN+, AIN-,
REF+, and REF- from NEGV to (AV DD + 0.3V). If the
analog input exceeds this range, limit the input current
to 10mA.
Internal Analog Input/Reference Buffers
The MAX1365/MAX1367 analog input/reference buffers
allow the use of high-impedance signal sources. The
input buffers’ common-mode input range allows the ana-
log inputs and the reference to range from -2.2V to +2.2V.
Modulator
The MAX1365/MAX1367 perform analog-to-digital con-
versions using a single-bit, 3rd-order, sigma-delta mod-
ulator. The sigma-delta modulator converts the input
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1368ECM | 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 |
| 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 |
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