Datasheet LMC7221 (Texas Instruments) - 3

LMC7221 www.ti.com
SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013
2.7V Electrical Characteristics (continued)
Unless otherwise specified, all limits ensured for TJ = 25°C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2.
Boldface
limits apply at the temperature extremes.
Parameter Test Conditions LMC7221AI LMC7221BI Units Typ(1) Limit(2) Limit(2)
AV Voltage Gain 100 dB CMVR Input Common-Mode Voltage CMRR > 55 dB 3.0 2.9 2.9 V Range
2.7 2.7
min CMRR > 55 dB −0.3 −0.2 −0.2 V
0.0 0.0
max VOL Output Voltage Low ILOAD = 2.5 mA 0.2 0.3 0.3 V
0.4 0.4
max IS Supply Current VOUT = Low 7 12 12 μA
14 14
max
5.0V and 15.0V Electrical Characteristics
Unless otherwise specified, all limits ensured for TJ = 25°C, V+ = 5.0V and 15V, V− = 0V, VCM = VO = V+/2.
Boldface
limits apply at the temperature extremes.
Parameter Test Conditions LMC7221AI LMC7221BI Units Typ(1) Limit(2) Limit(2)
VOS Input Offset Voltage 3 5 15 mV
8 18
max TCVOS Input Offset Voltage Temperature V+ = 5V 1.0 μV/°C Drift V+ = 15V 4.0 Input Offset Voltage Average Drift V+ = 5V (3) 3.3 μV/Month V+ = 15V (3) 4.0 IB Input Current 0.04 pA IOS Input Offset Current 0.02 pA CMRR Common Mode Rejection Ration V+ = 5.0V 75 dB V+ = 15.0V 82 dB PSRR Power Supply Rejection Ratio 5V ≤ V+ ≤ 10V 80 dB AV Voltage Gain 100 dB CMVR Input Common-Mode Voltage V+ = 5.0V 5.3 5.2 5.2 V Range CMRR > 55 dB
5.0 5.0
min V+ = 5.0V −0.3 −0.2 −0.2 V CMRR > 55 dB
0.0 0.0
max V+ = 15.0V 15.3 15.2 15.2 V CMRR > 55 dB
15.0 15.0
min V+ = 15.0V −0.3 −0.2 −0.2 V CMRR > 55 dB
0.0 0.0
max VOL Output Voltage Low V+ = 5V 0.2 0.40 0.40 mV ILOAD = 5 mA
0.55 0.55
max V+ = 15V 0.2 0.40 0.40 mV ILOAD = 5 mA
0.55 0.55
max IS Supply Current VOUT = Low 7 14 14 μA
18 18
max (1) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped production material. (2) All limits are specified by testing or statistical analysis. (3) CL includes the probe and test jig capacitance. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LMC7221 Document Outline FEATURES Applications DESCRIPTION Connection Diagram Absolute Maximum Ratings Operating Ratings 2.7V Electrical Characteristics 5.0V and 15.0V Electrical Characteristics Leakage Characteristics AC Electrical Characteristics Typical Performance Characteristics Application Information BENEFITS OF THE LMC7221 TINY COMPARATOR Size Height Simplified Board Layout Low Supply Current Wide Voltage Range Digital Outputs Representing Signal Level Open Drain Output Driving LEDs (Light Emitting Diodes) Input range to Beyond Rail to Rail Zero Crossing Detector Low Input Currents and High Input Impedance Direct Sensor Interfacing LOW VOLTAGE OPERATION OPEN DRAIN OUTPUT Output Stage OUTPUT SHORT CIRCUIT CURRENT INPUT PROTECTION LAYOUT CONSIDERATIONS PUSH-PULL OUTPUTS, DUAL VERSIONS ADDITIONAL 5-Pin SOT-23 TINY DEVICES SPICE MACROMODEL Revision History