Datasheet Texas Instruments LMC7211 (Texas Instruments) - 10
| 制造商 | Texas Instruments |
| 描述 | Tiny CMOS Comparator with Rail-to-Rail Input and Push-Pull Output |
| 页数 / 页 | 24 / 10 — LMC7211-N. www.ti.com. Figure 3. Even at Low-Supply Voltage of 2.7V, an … |
| 修订版 | F |
| 文件格式/大小 | PDF / 1.3 Mb |
| 文件语言 | 英语 |
LMC7211-N. www.ti.com. Figure 3. Even at Low-Supply Voltage of 2.7V, an Input Signal which Exceeds the Supply Voltages
文件文字版本
LMC7211-N
SNOS746F – MAY 2004 – REVISED JANUARY 2013
www.ti.com
At supply voltages of 2.7V, the common-mode voltage range extends 200 mV (guaranteed) below the negative supply. This feature, in addition to the comparator being able to sense signals near the positive rail, is extremely useful in low voltage applications.
Figure 3. Even at Low-Supply Voltage of 2.7V, an Input Signal which Exceeds the Supply Voltages Produces No Phase Inversion at the Output
At V+ = 2.7V propagation delays are tPLH = 4 μs and tPHL = 4 μs with overdrives of 100 mV. Please refer to the performance curves for more extensive characterization.
Shoot-Through Current
The shoot-through current is defined as the current surge, above the quiescent supply current, between the positive and negative supplies of a device. The current surge occurs when the output of the device switches states. The shoot-through current results in glitches in the supply voltages. Usually, glitches in the supply lines are prevented by bypass capacitors. When the glitches are minimal, the value of the bypass capacitors can be reduced.
Figure 4. Circuit for Measurement of the Shoot-Through Current
10 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: LMC7211-N Document Outline FEATURES Applications DESCRIPTION Connection Diagram Absolute Maximum Ratings Operating Ratings 2.7V Electrical Characteristics 5.0V and 15.0V Electrical Characteristics AC Electrical Characteristics Typical Performance Characteristics Application Information Benefits of the LMC7211 Tiny Comparator Low Voltage Operation Shoot-Through Current Output Short Circuit Current Hysteresis Input Protection Layout Considerations Open Drain Output, Dual Versions Additional SOT23-5 Tiny Devices Spice Macromodel
SNOS746F – MAY 2004 – REVISED JANUARY 2013
www.ti.com
At supply voltages of 2.7V, the common-mode voltage range extends 200 mV (guaranteed) below the negative supply. This feature, in addition to the comparator being able to sense signals near the positive rail, is extremely useful in low voltage applications.
Figure 3. Even at Low-Supply Voltage of 2.7V, an Input Signal which Exceeds the Supply Voltages Produces No Phase Inversion at the Output
At V+ = 2.7V propagation delays are tPLH = 4 μs and tPHL = 4 μs with overdrives of 100 mV. Please refer to the performance curves for more extensive characterization.
Shoot-Through Current
The shoot-through current is defined as the current surge, above the quiescent supply current, between the positive and negative supplies of a device. The current surge occurs when the output of the device switches states. The shoot-through current results in glitches in the supply voltages. Usually, glitches in the supply lines are prevented by bypass capacitors. When the glitches are minimal, the value of the bypass capacitors can be reduced.
Figure 4. Circuit for Measurement of the Shoot-Through Current
10 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated Product Folder Links: LMC7211-N Document Outline FEATURES Applications DESCRIPTION Connection Diagram Absolute Maximum Ratings Operating Ratings 2.7V Electrical Characteristics 5.0V and 15.0V Electrical Characteristics AC Electrical Characteristics Typical Performance Characteristics Application Information Benefits of the LMC7211 Tiny Comparator Low Voltage Operation Shoot-Through Current Output Short Circuit Current Hysteresis Input Protection Layout Considerations Open Drain Output, Dual Versions Additional SOT23-5 Tiny Devices Spice Macromodel