參數(shù)資料
型號(hào)： MAX9611AUB+
廠(chǎng)商： Maxim Integrated Products
文件頁(yè)數(shù)： 4/20頁(yè)
文件大?。?/td> 0K
描述： IC 12BIT ADC OPAMP COMPAR 10UMAX
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 25
放大器類(lèi)型： 電流檢測(cè)
電路數(shù)： 1
增益帶寬積： 2.5MHz
-3db帶寬： 4MHz
電流 - 輸入偏壓： 1µA
電壓 - 輸入偏移： 100µV
電流 - 電源： 1.6mA
電流 - 輸出 / 通道： 15mA
電壓 - 電源，單路/雙路(±)： 2.7 V ~ 5.5 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 10-TFSOP，10-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 10-uMAX
包裝： 管件
High-Side, Current-Sense Amplifiers with
12-Bit ADC and Op Amp/Comparator
MAX9611/MAX9612
12 _____________________________________________________________________________________
Detailed Description
The MAX9611/MAX9612 are high-side, current-sense
amplifiers with an integrated 12-bit ADC and an internal
selectable op amp/comparator. These devices are ideal
for a variety of industrial and automotive applications.
The MAX9611/MAX9612’s high-side, current-sense
amplifiers operate over a wide 0V to 60V input com-
mon-mode voltage range. The programmable full-scale
voltage (440mV, 110mV, and 55mV) allows for a wide
dynamic range current measurement and application
flexibility in choosing sense resistor values.
The I2C bus is 1.8V and 3.3V logic compatible and
can interface with modern microcontrollers. An internal
12-bit, 500sps integrating analog-to-digital converter
(ADC) allows the user to read analog signals such as die
temperature, VOUT, VSET, VRSCM, and VSENSE.
At power-up, the selectable op-amp/comparator block
is configured in the op-amp mode. The op amp has
an effective 60V Class A-type output stage and can be
used to limit inrush currents and create a current source
when used in a closed-loop system. When the internal
comparator is selected, the MAX9611/MAX9612 can
be configured to have a latched and retry functional-
ity, allowing a 60V open-drain transistor output, ideal to
operate high-side relay-disconnect FETs. The MAX9611
has a noninverting input-to-output configuration while the
MAX9612 has an inverting input-to-output configuration.
Current-Sense Amplifier
The MAX9611/MAX9612 feature a precision current-sense
amplifier with a 0V to 60V input common-mode voltage
range. An internal negative charge pump eliminates input
stage crossover distortion, typical in most rail-to-rail
input current-sense amplifiers. Low input bias currents
and low input offset currents allow a wide selection of
input filters to be designed without degrading the accu-
racy of the current-sense amplifier.
The current-sense amplifier inputs feature both a
-0.3V/+65V common-mode absolute maximum rating
as well as a Q65V differential absolute maximum rating,
allowing a wide variety of fault conditions to be withstood
easily by the device without damage.
The current-sense amplifier has a gain of 2.5V/V and
connects directly to the output op-amp/comparator
inputs. The ADC path features a 1x, 4x, and 8x program-
mable gain providing for 440mV, 110mV, and 55mV full-
scale sense voltage.
Analog-to-Digital Converter (ADC)
The MAX9611/MAX9612 feature an internal dual-slope
integrating 12-bit ADC that has a 2ms conversion time
and a 1.8V and 3.3V logic-compatible I2C bus. An inter-
nal mux allows the following on chip variables to be
read: input sense voltage, input common-mode voltage,
SET voltage, OUT voltage, and die temperature.
Temperature Measurement
Die temperature can be read by the ADC over the entire
operating range (-40NC to +125NC) with 0.5NC resolution.
Die temperature can be used for application calibration
and thermal monitoring and is available in a 9-bit, two’s
complement format. Readings outside of normal operat-
ing temperature range (-40NC to +125NC) are inaccurate
and should be considered invalid. See Table 1 for binary
and hex values.
Table 1. Binary and Hex Digital Output Values for Temperature Measurements
TEMPERATURE (NC)
DIGITAL OUTPUT
BINARY
HEX
+122.4
0111 1111 1xxx xxxx
7F8x
+24
0001 1001 0xxx xxxx
190x
+0.48
0000 0000 1xxx xxxx
008x
0
0000 0000 0xxx xxxx
000x
-0.48
1111 1111 1xxx xxxx
FF8x
-24
1110 0111 0xxx xxxx
E70x
-40
1101 1001 1xxx xxxx
D98x
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9611AUB+ 功能描述:電流靈敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9611AUB+T 功能描述:電流靈敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
MAX9611EVKIT+ 功能描述:放大器 IC 開(kāi)發(fā)工具 MAX9611 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
MAX9611PMB1# 功能描述:放大器 IC 開(kāi)發(fā)工具 MAX9611 Peripheral Module RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類(lèi)型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
MAX9612AUB+ 功能描述:電流靈敏放大器 iSense + ADC + I2C RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel
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