Datasheet

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LMC7215, LMC7225

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SNOS882E –SEPTEMBER 1999–REVISED MARCH 2013

LMC7215/LMC7215-Q1/LMC7225 Micro-Power, Rail-to-Rail CMOS Comparators with Push-

Pull/Open-Drain Outputs

Check for Samples: LMC7215, LMC7225

FEATURES

DESCRIPTION

The LMC7215/LMC7215-Q1/LMC7225 are ultra low

(Typical Unless Otherwise Noted)

power comparators with a maximum of 1 μA power

• Ultra Low Power Consumption 0.7 μA

supply current. They are designed to operate over a

• Wide Range of Supply Voltages 2V to 8V

wide range of supply voltages, from 2V to 8V.

• Input Common-Mode Range Beyond V

and V

−

The LMC7215/LMC7215-Q1/LMC7225 have a

• Open Collector and Push-Pull Output

greater than rail-to-rail common mode voltage range.

This is a real advantage in single supply applications.

• High Output Current Drive: (@ V

= 5V) 45 mA

The LMC7215 features a push-pull output stage. This

• Propagation Delay (@ V

= 5V, 10 mV

feature allows operation with absolute minimum

Overdrive) 25 μs

amount of power consumption when driving any load.

• Tiny 5-Pin SOT-23 Package

The LMC7225 features an open drain output. By

• Latch-up Resistance >300 mA

connecting an external resistor, the output of the

• LMC7215-Q1 is an Automotive Grade Product

comparator can be used as a level shifter to any

that is AEC-Q100 Grade 3 Qualified.

desired voltage to as high as 15V.

The LMC7215/LMC7215-Q1/LMC7225 are designed

APPLICATIONS

for systems where low power consumption is the

• Laptop Computers

critical parameter.

• Mobile Phones

Ensured operation over the full supply voltage range

• Metering Systems

of 2.7V to 5V and rail-to-rail performance makes this

comparator ideal for battery-powered applications.

• Hand-held Electronics

• RC Timers

• Alarm and Monitoring Circuits

• Window Comparators, Multivibrators

• Automotive

Connection Diagrams

Figure 1. 8-Pin SOIC (Top View) Figure 2. 5-Pin SOT-23 (Top View)

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (19 pages)

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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 LMC7215/LMC7215-Q1/LMC7225 Micro-Power, Rail-to-Rail CMOS Comparators with PushPull/Open-Drain Outputs Check for Samples: LMC7215, LMC7225 FEATURES 1 (Typical Unless Otherwise Noted) 2 • • • • • • • • • Ultra Low Power Consumption 0.
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LMC7215, LMC7225 SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings ESD Tolerance (1) (2) (3) 2 kV Differential Input Voltage V+ +0.3V, V− −0.3V Voltage at Input/Output Pin V+ +0.3V, V− −0.
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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 2.7V to 5V Electrical Characteristics (continued) Unless otherwise specified, all limits specified for TJ = 25°C, V+ = 2.7V to 5V, V− = 0V, VCM = VO = V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter PSRR Power Supply Rejection Ratio AV Voltage Gain Conditions Typ V+ = 2.2V to 8V (1) LMC7215 Limit (2) LMC7225 Limit (2) 60 60 2.9 2.9 V 2.7 2.7 min 0.0 0.0 V 0.2 0.2 max 5.2 5.
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LMC7215, LMC7225 SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 www.ti.com AC Electrical Characteristics (continued) Unless otherwise specified, TJ = 25°C, V+ = 5V, V− = 0V, VCM = V+/2 Symbol tPHL Parameter Propagation Delay (High to Low) Conditions See (2) (3) V+ = 2.7V (2) tPLH Propagation Delay (Low to High) See (2) (3) V+ = 2.
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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 Typical Performance Characteristics TA= 25°C unless otherwise specified Supply Current vs. Supply Voltage Prop Delay vs. VSUPPLY Figure 3. Figure 4. Prop Delay vs. Overdrive Short Circuit Current vs. VSUPPLY Figure 5. Figure 6. Output Voltage vs. Output Current LMC7215 Output Voltage vs. Output Current Figure 7. Figure 8.
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LMC7215, LMC7225 SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) TA= 25°C unless otherwise specified 6 Output Voltage vs. Output Current LMC7215 Output Voltage vs. Output Current Figure 9. Figure 10. Output Leakage Current vs. Output Voltage LMC7225 Output Leakage Current vs. Output Voltage LMC7225 Figure 11. Figure 12.
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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 APPLICATION INFORMATION RESPONSE TIME Depending upon the amount of overdrive, the delay will typically be between 10 μs to 200 μs. The curve showing delay vs. overdrive in the " Typical Characteristics" section shows the delay time when the input is preset with 100 mV across the inputs and then is driven the other way by 1 mV to 500 mV. The transition from high to low or low to high is fast. Typically 1 μs rise and 400 ns fall.
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LMC7215, LMC7225 SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 www.ti.com INPUT VOLTAGE RANGE The LMC7215/25 have input voltage ranges that are larger than the supply voltage ensures that signals from other parts of the system cannot overdrive the inputs. This allows sensing supply current by connecting one input directly to the V+ line and the other to the other side of a current sense resistor. The same is true if the sense resistor is in the ground return line.
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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 SHOOT-THROUGH Shoot-through is a common occurrence on digital circuits and comparators where there is a push-pull output stage. This occurs when a signal is applied at the same time to both the N-channel and P-channel output transistors to turn one off and turn the other on. (See Figure 15.) If one of the output devices responds slightly faster than the other, the fast one can be turned on before the other has turned off.
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LMC7215, LMC7225 SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 www.ti.com Figure 17. RS = 10Ω Figure 18. LATCH-UP In the past, most CMOS IC's were susceptible to a damaging phenomena known as latch-up. This occurred when an ESD current spike or other large signal was applied to any of the pins of an IC. The LMC7215 and LMC7225 both are designed to make them highly resistant to this type of damage.
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LMC7215, LMC7225 www.ti.com SNOS882E – SEPTEMBER 1999 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision D (March 2013) to Revision E • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 1-Nov-2013 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) LMC7215IM5 SOT-23 DBV 5 1000 178.0 8.4 LMC7215IM5/NOPB SOT-23 DBV 5 1000 178.0 LMC7215IM5X SOT-23 DBV 5 3000 178.0 LMC7215IM5X/NOPB SOT-23 DBV 5 3000 LMC7215IMX/NOPB SOIC D 8 W Pin1 (mm) Quadrant 3.2 3.2 1.4 4.0 8.0 Q3 8.4 3.2 3.2 1.4 4.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMC7215IM5 SOT-23 DBV 5 1000 210.0 185.0 35.0 LMC7215IM5/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LMC7215IM5X SOT-23 DBV 5 3000 210.0 185.0 35.0 LMC7215IM5X/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LMC7215IMX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LMC7215QIM5/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.
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