LMC7221_14 Datasheet, PDF (3/21 Pages) Texas Instruments – LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output

LMC7221
www.ti.com
SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013
2.7V Electrical Characteristics (continued)
Unless otherwise specified, all limits ensured for T_J = 25°C, V⁺ = 2.7V, V^− = 0V, V_CM = V_O = V⁺/2. Boldface limits apply at the
temperature extremes.
Parameter
Test Conditions
Typ ⁽¹⁾
LMC7221AI
Limit ⁽²⁾
LMC7221BI
Limit ⁽²⁾
Units
A_V
CMVR
Voltage Gain
Input Common-Mode Voltage
Range
CMRR > 55 dB
100
dB
3.0
2.9
2.9
V
2.7
2.7
min
CMRR > 55 dB
−0.3
−0.2
−0.2
V
0.0
0.0
max
V_OL
Output Voltage Low
I_LOAD = 2.5 mA
0.2
0.3
0.3
V
0.4
0.4
max
I_S
Supply Current
V_OUT = Low
7
12
12
μA
14
14
max
5.0V and 15.0V Electrical Characteristics
Unless otherwise specified, all limits ensured for T_J = 25°C, V⁺ = 5.0V and 15V, V^− = 0V, V_CM = V_O = V⁺/2. Boldface limits
apply at the temperature extremes.
Parameter
Test Conditions
Typ ⁽¹⁾
LMC7221AI
Limit ⁽²⁾
LMC7221BI
Limit ⁽²⁾
Units
V_OS
TCV_OS
Input Offset Voltage
Input Offset Voltage Temperature
Drift
Input Offset Voltage Average Drift
V⁺ = 5V
V⁺ = 15V
V⁺ = 5V ⁽³⁾
V⁺ = 15V ⁽³⁾
3
5
8
1.0
4.0
3.3
4.0
15
mV
18
max
μV/°C
μV/Month
I_B
Input Current
0.04
pA
I_OS
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
A_V
CMVR
V_OL
Voltage Gain
Input Common-Mode Voltage
Range
Output Voltage Low
V⁺ = 5.0V
CMRR > 55 dB
V⁺ = 5.0V
CMRR > 55 dB
V⁺ = 15.0V
CMRR > 55 dB
V⁺ = 15.0V
CMRR > 55 dB
V⁺ = 5V
I_LOAD = 5 mA
V⁺ = 15V
I_LOAD = 5 mA
100
5.3
−0.3
15.3
−0.3
0.2
0.2
5.2
5.0
−0.2
0.0
15.2
15.0
−0.2
0.0
0.40
0.55
0.40
0.55
dB
5.2
V
5.0
min
−0.2
V
0.0
max
15.2
V
15.0
min
−0.2
V
0.0
max
0.40
mV
0.55
max
0.40
mV
0.55
max
I_S
Supply Current
V_OUT = 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) C_L includes the probe and test jig capacitance.
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