參數(shù)資料
型號: MAX9934TAUA+
廠商: Maxim Integrated Products
文件頁數(shù): 5/19頁
文件大小: 0K
描述: IC AMP CURR SENSE LV 8UMAX
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 50
放大器類型: 電流檢測
電路數(shù): 1
-3db帶寬: 1.5kHz
電流 - 輸入偏壓: 35µA
電壓 - 輸入偏移: 10µV
電流 - 電源: 120µA
電壓 - 電源,單路/雙路(±): 2.5 V ~ 3.6 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-uMAX
包裝: 管件
MAX9934
High-Precision, Low-Voltage, Current-Sense Amplifier
with Current Output and Chip Select for Multiplexing
13
Maxim Integrated
In Figure 5, VOUT is equal to VBIAS when the sum of all
outputs is zero. For positive input-sense voltages, the
MAX9934 sources current causing its output voltage to
rise above VBIAS. For negative input-sense voltages,
the MAX9934 sinks current causing its output voltage to
be lower than VBIAS, thus allowing bidirectional current
sensing.
Since the ADC reference voltage, VREF, determines the
full-scale reading, a common choice for VBIAS is
VREF/2. The current output makes it possible to use a
simple resistor-divider from VREF to GND to generate
VBIAS. The output resistance for gain calculation is the
parallel combination of the two resistors. For example, if
two equal value resistors, R, are used to generate a
VBIAS = VREF/2, the output termination resistance for
gain calculation is ROUT = R/2. See Figure 5.
VCC = 3.3V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
RSENSE
-0.1V
≤ VCM ≤ 5.5V
MAX9934
R
10k
ADC
VREF
CS2
CS1
MICROCONTROLLER
CS
TO EXTERNAL
REFERENCE
VOLTAGE
10k
R
CS3
(OPTIONAL)
VIN1
VIN2
VIN3
ILOAD3
ILOAD2
ILOAD1
VOUT
OUT3
OUT2
OUT1
ROUT =
R
2
Figure 5. Bidirectional Multiplexed Operation
相關PDF資料
PDF描述
MAX9934FAUA+ IC AMP CURR SENSE LV 8UMAX
MJS 500-R TR FUSE 500MA 250V SLOW 5X15 TR
MJS 3-R FUSE 3A 250V SLOW 5X15 BULK
MJS 1.5-R TR FUSE 1.5A 250V SLOW 5X15 TR
MCW0406MD1000BP100 RES 100 OHM 1/4W .1% 0406 WIDE
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