- 您现在的位置：买卖IC网 > PDF目录3524 > MAX9611AUB+ (Maxim Integrated Products)IC 12BIT ADC OPAMP COMPAR 10UMAX PDF资料下载
参数资料
| 型号： | MAX9611AUB+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/20页 |
| 文件大小： | 0K |
| 描述： | IC 12BIT ADC OPAMP COMPAR 10UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 放大器类型： | 电流检测 |
| 电路数： | 1 |
| 增益带宽积： | 2.5MHz |
| -3db带宽： | 4MHz |
| 电流 - 输入偏压： | 1µA |
| 电压 - 输入偏移： | 100µV |
| 电流 - 电源： | 1.6mA |
| 电流 - 输出 / 通道： | 15mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-uMAX |
| 包装： | 管件 |
High-Side, Current-Sense Amplifiers with
12-Bit ADC and Op Amp/Comparator
MAX9611/MAX9612
______________________________________________________________________________________ 13
SET Voltage Measurement
The SET voltage serves as a reference voltage for the
internal op amp or comparator around which a control
loop can be designed. The low bias current for SET
allows high-impedance resistor-dividers and current-
output DACs to be used, making it easy to interface
without introducing additional errors.
The SET input can also serve as an auxiliary input port
to the ADC, if the op amp or comparator is not utilized
in the application. Its full-scale input range extends from
0V to 1.10V.
OUT Voltage Measurement
The internal amplifier/comparator output voltage can be
monitored over the entire 0V to 57.3V range by the ADC.
An internal high-value resistor divider on OUT reduces
leakage current effects.
Common-Mode Voltage Measurement
The input common-mode voltage is defined as the aver-
age of the voltage at RS+ and RS-. A high value resistor-
divider allows measurement of the input common-mode
voltage over the 0V to 57.3V range.
Sense Voltage Measurement
Three programmable gains allow for a wide range of cur-
rents to be read by the ADC. The current-sense amplifier
gain can be set to 1x, 4x, or 8x. The full-scale sense volt-
ages are then 440mV, 110mV, and 55mV, respectively.
Output Amplifier/Comparator
The MAX9611/MAX9612 feature an internally selectable
op amp and comparator where one of the inputs is con-
nected to the 2.5x current-sense amplifier, and the other
input is connected to the SET input. The op amp or the
comparator output can be selected and connected to
OUT. The output stage is an open-drain 60V nFET, that
requires a suitable pullup resistor for proper opera-
tion. The op amp then behaves like a Class-A output
stage. Select op amp or comparator function in Control
Register 1 (0x0A) bit 7 (see Tables 4 and 5).
Watchdog/Latch/Retry Functionality
Internal digital circuitry is used to implement a watchdog
feature that can be useful to handle normal application
transients that are not true fault conditions. This feature
applies both to the op amp and comparator modes of
part operation. A watchdog delay time is internally set to
1ms by default but can be changed to 100Fs. The retry
delay time is internally set to 50ms by default, but can be
changed to 10ms (see Tables 6 and 7).
In normal operation mode, (Control Register 1 (0x0A)
000x xxxx), the amplifier output responds to the differ-
ence between its inputs, i.e., the CSA output voltage and
the SET voltage. In open-loop configuration, the op amp
can be used as a comparator.
In a watchdog-latch-retry mode (Control Register 1
(0x0A) 111x xxxx), the output of the comparator waits
for a watchdog delay time (to ensure the CSA output
continues to stay above the SET voltage for this duration)
before responding, and then latches onto this state. After
a retry delay time, it resets the comparator state and the
cycle repeats.
Similar functionality is implemented for the op-amp
mode as well (Control Register 1 (0x0A) 000x xxxx to
011x xxxx).
A RESET bit is defined in Control Register 1 (0x0A) to
reset a latched state when commanded by the user.
I2C Interface
The MAX9611/MAX9612 I2C interface consists of a
serial-data line (SDA) and serial-clock line (SCL). SDA
and SCL facilitate bidirectional communication between
the MAX9611/MAX9612 and the master at rates up to
400kHz. The MAX9611/MAX9612 are slave devices that
transfer and receive data. The master (typically a micro-
controller) initiates data transfer on the bus and gener-
ates the SCL signal to permit that transfer.
相关PDF资料 |
PDF描述 |
|---|---|
| LT6200IS6#TRPBF | IC OPAMP R-R I/O 165MHZ SOT23-6 |
| MAX44251AUA+ | IC AMP LNA 20V ULT PREC UMAX |
| EL5104IW-T7 | IC OP AMP HS VF 700MHZ SOT23-6 |
| LT6200IS6#TRM | IC OPAMP R-R I/O 165MHZ SOT23-6 |
| 9-146305-0-23 | CONN HEADR BRKWAY .100 23POS R/A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9611AUB+ | 功能描述:电流灵敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9611AUB+T | 功能描述:电流灵敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| MAX9611EVKIT+ | 功能描述:放大器 IC 开发工具 MAX9611 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9611PMB1# | 功能描述:放大器 IC 开发工具 MAX9611 Peripheral Module RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX9612AUB+ | 功能描述:电流灵敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。