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參數(shù)資料
| 型號： | MAX4195ESA |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP INSTR PREC R-TO-R 8-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 放大器類型： | 儀表 |
| 電路數(shù)： | 1 |
| 輸出類型： | 滿擺幅 |
| 轉(zhuǎn)換速率： | 0.06 V/µs |
| -3db帶寬： | 220kHz |
| 電流 - 輸入偏壓： | 6nA |
| 電壓 - 輸入偏移： | 100µV |
| 電流 - 電源： | 93µA |
| 電流 - 輸出 / 通道： | 4.5mA |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 7.5 V，±1.35 V ~ 3.75 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 管件 |
MAX4194–MAX4197
Micropower, Single-Supply, Rail-to-Rail,
Precision Instrumentation Amplifiers
12
______________________________________________________________________________________
Power-Supply Bypassing and Layout
Good layout technique optimizes performance by
decreasing the amount of stray capacitance at the
instrumentation amplifier’s gain-setting pins. Excess
capacitance will produce peaking in the amplifier’s fre-
quency response. To decrease stray capacitance, min-
imize trace lengths by placing external components as
close to the instrumentation amplifier as possible. For
best performance, bypass each power supply to
ground with a separate 0.1F capacitor.
Transducer Applications
The MAX4194–MAX4197 instrumentation amplifiers can
be used in various signal-conditioning circuits for ther-
mocouples, PT100s, strain gauges (displacement sen-
sors), piezoresistive transducers (PRTs), flow sensors,
and bioelectrical applications. Figure 7 shows a simpli-
fied example of how to attach four strain gauges (two
identical two-element strain gauges) to the inputs of the
MAX4194. The bridge contains four resistors, two of
which increase and two of which decrease by the same
ratio.
With a fully balanced bridge, points A (IN+) and B (IN-)
see half the excitation voltage (VBRIDGE). The low
impedance (120
to 350) of the strain gauges, how-
ever, could cause significant voltage drop contributions
by the wires leading to the bridge, which would cause
excitation variations. Output voltage VOUT can be cal-
culated as follows:
VOUT = VAB G
where G = (1 + 50k
/ RG) is the gain of the instrumen-
tation amplifier.
Since VAB is directly proportional to the excitation, gain
errors may occur.
Figure 7. Strain Gauge Connection to the MAX4194
IN-
VEE
VCC
VAB = VIN+ - VIN-
VBRIDGE
R
RG
IN+
RG+
RG-
OUT
REFERENCE
P
REF
B
A
MAX144
ADC
R = 120
- 350
___________________Chip Information
TRANSISTOR COUNT: 432
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4195ESA+ | 功能描述:儀表放大器 uPower Single-Supply Rail-Rail Precision RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| MAX4195ESA+T | 功能描述:儀表放大器 uPower Single-Supply Rail-Rail Precision RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| MAX4195ESA-T | 功能描述:儀表放大器 uPower Single-Supply Rail-Rail Precision RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
| MAX4196 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Micropower, Single-Supply, Rail-to-Rail, Precision Instrumentation Amplifiers |
| MAX4196ESA | 功能描述:儀表放大器 RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk |
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