参数资料
型号: MAX1136
厂商: Maxim Integrated Products, Inc.
英文描述: Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-23 -40 to 85
中文描述: 2.7V至3.6V及4.5V至5.5V、低功耗、4/12通道、2线串行接口、10位ADC
文件页数: 9/22页
文件大小: 471K
代理商: MAX1136
Detailed Description
The MAX1136
MAX1139 analog-to-digital converters
(ADCs) use successive-approximation conversion tech-
niques and fully differential input track/hold (T/H) cir-
cuitry to capture and convert an analog signal to a
serial 12-bit digital output. The MAX1136/MAX1137 are
4-channel ADCs, and the MAX1138/MAX1139 are
12-channel ADCs. These devices feature a high-speed
2-wire serial interface supporting data rates up to
1.7MHz. Figure 2 shows the simplified internal structure
for the MAX1138/MAX1139.
Power Supply
The MAX1136
MAX1139 operates from a single supply
and consumes 670μA (typ) at sampling rates up to
94.4ksps. The MAX1137/MAX1139 feature a 2.048V
internal reference and the MAX1136/MAX1138 feature
a 4.096V internal reference. All devices can be config-
ured for use with an external reference from 1V to V
DD
.
Analog Input and Track/Hold
The MAX1136
MAX1139 analog-input architecture con-
tains an analog-input multiplexer (mux), a fully differen-
tial track-and-hold (T/H) capacitor, T/H switches, a
comparator, and a fully differential switched capacitive
digital-to-analog converter (DAC) (Figure 4).
In single-ended mode the analog-input multiplexer con-
nects C
T/H
between the analog input selected by
CS[3:0] (see the
Configuration Setup Bytes
section)
and GND (Table 3). In differential mode, the analog-
input multiplexer connects C
T/H
to the
+
and
-
ana-
log inputs selected by CS[3:0] (Table 4).
During the acquisition interval the T/H switches are in
the track position and C
T/H
charges to the analog input
M
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
_______________________________________________________________________________________
9
ANALOG
INPUT
MUX
AIN1
AIN2
AIN3
AIN4
AIN5
AIN6
AIN7
AIN8
AIN9
AIN10
AIN11/REF
AIN0
SCL
SDA
INPUT SHIFT REGISTER
SETUP REGISTER
CONFIGURATION REGISTER
CONTROL
LOGIC
REFERENCE
4.096V (MAX1138)
2.048V (MAX1139)
INTERNAL
OSCILLATOR
OUTPUT SHIFT
REGISTER
AND RAM
REF
T/H
10-BIT
ADC
V
DD
GND
MAX1138
MAX1139
Figure 2. MAX1138/MAX1139 Functional Diagram
V
DD
I
OL
I
OH
V
OUT
400pF
SDA
Figure 3. Load Circuit
相关PDF资料
PDF描述
MAX1137 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
MAX1138 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
MAX1139 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
MAX1138EEE 2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
MAX1139EEE Low-Voltage Adjustable Precision Shunt Regulator 3-SOT-89 -40 to 85
相关代理商/技术参数
参数描述
MAX1136_09 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
MAX1136EUA 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
MAX1136EUA+ 功能描述:模数转换器 - ADC 10-Bit 4Ch 94.4ksps 5.5V 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
MAX1136EUA+T 功能描述:模数转换器 - ADC 10-Bit 4Ch 94.4ksps 5.5V 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
MAX1136EUA-D 制造商:Maxim Integrated Products 功能描述:2.7V TO 3.6V AND 4.5V TO 5.5V, LOW-POWER, 4-/ - Rail/Tube