LMC7221_14 Datasheet, PDF (2/21 Pages) Texas Instruments – LMC7221 Tiny CMOS Comparator with Rail-To-Rail Input and Open Drain Output

LMC7221
SNOS748E – SEPTEMBER 1999 – REVISED MARCH 2013
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Absolute Maximum Ratings ⁽¹⁾
ESD Tolerance ⁽²⁾
Differential Input Voltage
Voltage at Input
Voltage at Output Pin
Supply Voltage (V⁺–V^−)
Current at Input Pin ⁽³⁾
Current at Output Pin^{(4) (5)}
Current at Power Supply Pin
Lead Temperature (soldering, 10 sec.)
Junction Temperature ⁽⁶⁾
2 kV
V⁺ +0.3V, V^− −0.3V
V⁺ +0.3V, V^− −0.3V
15V
16V
±5 mA
±30 mA
40 mA
260°C
150°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics.
(2) Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine Model, applicable std. JESD22-A115-A (ESD MM std. of
JEDEC)Field-Induced Charge-Device Model, applicable std. JESD22-C101-C (ESD FICDM std. of JEDEC).
(3) All limits are specified by testing or statistical analysis.
(4) Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in
exceeding the maximum allowed junction temperature of 150°C. Output currents in excess of ±30 mA may adversely affect reliability.
(5) Limiting input pin current is only necessary for input voltages which exceed the absolute maximum input voltage rating.
(6) The maximum power dissipation is a function of T_J(MAX), θ_JA. The maximum allowable power dissipation at any ambient temperature is
P_D = (T_J(MAX) – T_A)/ θ_JA. All numbers apply for packages soldered directly onto a PC Board.
Operating Ratings ⁽¹⁾
Supply Voltage
Temperature Range ⁽²⁾
LMC7221AI, LMC7221BI
Thermal Resistance (θ_JA)
8-Pin SOIC
5-Pin SOT-23
2.7 ≤ V_CC ≤ 15V
−40°C to +85°C
180°C/W
325°C/W
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and the test
conditions, see the Electrical Characteristics.
(2) The maximum power dissipation is a function of T_J(MAX), θ_JA. The maximum allowable power dissipation at any ambient temperature is
P_D = (T_J(MAX) – T_A)/ θ_JA. All numbers apply for packages soldered directly onto a PC Board.
2.7V Electrical Characteristics
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
V_OS
Input Offset Voltage
3
5
15
mV
8
18
max
TCV_OS
Input Offset Voltage
1.0
Temperature Drift
Input Offset Voltage Average
(3)
3.3
Drift
μV/°C
μV/Month
I_B
Input Current
0.04
pA
I_OS
Input Offset Current
0.02
pA
CMRR
Common Mode Rejection Ratio 0V ≤ V_CM ≤ 2.7V
75
dB
PSRR
Power Supply Rejection Ratio 2.7V ≤ V⁺ ≤ 15V
80
dB
(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.
2
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