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參數(shù)資料
| 型號： | TLV2704IN |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 比較器 |
| 英文描述： | FAMILY OF NANOPOWER OPERATIONAL AMPLIFIERS AND PUSH-PULL COMPARATORS |
| 中文描述： | 家庭NANOPOWER運(yùn)算放大器和推挽比較器 |
| 文件頁數(shù)： | 13/23頁 |
| 文件大?。?/td> | 429K |
| 代理商： | TLV2704IN |
TLV2702
TLV2704
SLOS340B
–
DECEMBER 2000
–
REVISED AUGUST 2001
13
www.ti.com
APPLICATION INFORMATION
reverse battery protection
The TLV2702/4 are protected against reverse battery voltage up to 18 V. When subjected to reverse battery
condition the supply current is typically less than 100 nA at 25
°
C (inputs grounded and outputs open). This
current is determined by the leakage of 6 Schottky diodes and will therefore increase as the ambient
temperature increases.
When subjected to reverse battery conditions and negative voltages applied to the inputs or outputs, the input
ESD structure will turn on
—
this current should be limited to less than 10 mA. If the inputs or outputs are referred
to ground, rather than midrail, no extra precautions need be taken.
common-mode input range
The TLV2702/4 has rail-rail input and outputs. For common-mode inputs from
–
0.1 V to V
CC
–
0.8 V a PNP
differential pair will provide the gain.
For inputs between V
CC
–
0.8 V and V
CC
, two NPN emitter followers buffering a second PNP differential pair
provide the gain. This special combination of NPN/PNP differential pair enables the inputs to be taken 5 V above
the rails; because as the inputs go above V
CC
, the NPNs switch from functioning as transistors to functioning
as diodes. This will lead to an increase in input bias current. The second PNP differential pair continues to
function normally as the inputs exceed V
CC
.
The TLV2702/4 has a negative common-input range that exceeds ground by 100 mV. If the inputs are taken
much below this, reduced open loop gain will be observed with the ultimate possibility of phase inversion.
offset voltage
The output offset voltage, (V
OO
) is the sum of the input offset voltage (V
IO
) and both input bias currents (I
IB
) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage.
VOO
VIO
1
RF
RG
IIB
RS
1
RF
RG
IIB
–
RF
+
–
VI
+
RG
RS
RF
IIB
–
VO
IIB+
Figure 37. Output Offset Voltage Model
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| TLV2704INE4 | 功能描述:校驗(yàn)器 IC Op Amp (2) + Push-Pull Comparator RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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| TLV2711CDBVRG4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 Single LinCMOS Rail-To-Rail uPower RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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