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LMC6442 Datasheet Preview

LMC6442 Datasheet

Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier

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LMC6442
www.ti.com
SNOS013E – SEPTEMBER 1997 – REVISED MARCH 2013
LMC6442 Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
Check for Samples: LMC6442
FEATURES
1
2 (Typical, VS = 2.2V)
• Output Swing to Within 30 mV of Supply Rail
• High Voltage Gain 103 dB
• Gain Bandwidth Product 9.5 KHz
• Ensured for: 2.2V, 5V, 10V
• Low Supply Current 0.95 µA/Amplifier
• Input Voltage Range 0.3V to V+ -0.9V
• 2.1 µW/Amplifier Power Consumption
• Stable for AV +2 or AV ≤ −1
APPLICATIONS
• Portable Instruments
• Smoke/Gas/CO/Fire Detectors
• Pagers/Cell Phones
• Instrumentation
• Thermostats
• Occupancy Sensors
• Cameras
• Active Badges
DESCRIPTION
The LMC6442 is ideal for battery powered systems,
where very low supply current (less than one
microamp per amplifier) and Rail-to-Rail output swing
is required. It is characterized for 2.2V to 10V
operation, and at 2.2V supply, the LMC6442 is ideal
for single (Li-Ion) or two cell (NiCad or alkaline)
battery systems.
The LMC6442 is designed for battery powered
systems that require long service life through low
supply current, such as smoke and gas detectors,
and pager or personal communications systems.
Operation from single supply is enhanced by the wide
common mode input voltage range which includes the
ground (or negative supply) for ground sensing
applications. Very low (5 fA, typical) input bias current
and near constant supply current over supply voltage
enhance the LMC6442's performance near the end-
of-life battery voltage.
Designed for closed loop gains of greater than plus
two (or minus one), the amplifier has typically 9.5
KHz GBWP (Gain Bandwidth Product). Unity gain can
be used with a simple compensation circuit, which
also allows capacitive loads of up to 300 pF to be
driven, as described in the Application Information
section.
Connection Diagram
Top View
Figure 1. 8-Pin SOIC / PDIP Package
See Package Numbers D0008A, P0008E
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.
1
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.
All trademarks are the property of their respective owners.
2
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.
Copyright © 1997–2013, Texas Instruments Incorporated




etcTI

LMC6442 Datasheet Preview

LMC6442 Datasheet

Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier

No Preview Available !

LMC6442
SNOS013E – SEPTEMBER 1997 – REVISED MARCH 2013
www.ti.com
Absolute Maximum Ratings (1)(2)
ESD Tolerance (3)
Differential Input Voltage
Voltage at Input/Output Pin
Supply Voltage (V+ V):
Current at Input Pin (4)
Current at Output Pin(5) (6)
Lead Temp. (soldering 10 sec)
Storage Temp. Range:
Junction Temp. (7)
2 kV
±Supply Voltages
(V+) + 0.3V, (V) 0.3V
16V
±5 mA
±30 mA
260°C
65°C to +150°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) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) Human body model, 1.5 kΩ in series with 100 pF.
(4) Limiting input pin current is only necessary for input voltages that exceed absolute maximum input voltage ratings.
(5) 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 over long term may adversely
affect reliability.
(6) Do not short circuit output to V+, when V+ is greater than 13V or reliability will be adversely affected.
(7) The maximum power dissipation is a function of TJ(MAX), θJA, and TA. The maximum allowable power dissipation at any ambient
temperature is PD= (TJ(MAX) - TA)/ θJA. All numbers apply for packages soldered directly into a PC board.
Operating Ratings (1)
Supply Voltage
Junction Temperature Range: LMC6442AI, LMC6442I
Thermal Resistance (θJA) D0008A Package, 8-pin Surface Mount
P0008E Package, 8-pin Molded DIP
1.8V VS 11V
40°C < TJ < +85°C
193°C/W
115°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.
2.2V Electrical Characteristics
Unless otherwise specified, all limits ensured for TJ = 25°C, V+ = 2.2V, V= 0V, VCM = VO = V +/2, and RL = 1 MΩ to V+/2.
Boldface limits apply at the temperature extremes.
Parameter
Test Conditions
Typ (1)
LMC6442AI
Limit (2)
LMC6442I
Limit (2)
Units
DC Electrical Characteristics
VOS
Input Offset Voltage
0.75
±3
±4
±7
mV
±8
max
TCVOS
IB
IOS
Temp. coefficient of input
offset voltage
Input Bias Current
See (3)
Input Offset Current
See (3)
0.4
0.005
4
0.0025
2
µV/°C
4
pA
max
2
pA
max
CMRR
Common Mode Rejection 0.1V VCM 0.5V
Ratio
92
67
67
67
dB min
67
CIN
Common Mode Input
Capacitance
4.7
pF
PSRR
Power Supply Rejection
Ratio
VS = 2.5 V to 10V
95
75
75
75
dB
75
min
(1) Typical Values represent the most likely parametric norm.
(2) All limits are specified by testing or statistical analysis unless otherwise specified.
(3) Limits specified by design.
2
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Product Folder Links: LMC6442
Copyright © 1997–2013, Texas Instruments Incorporated


Part Number LMC6442
Description Dual Micropower Rail-to-Rail Output Single Supply Operational Amplifier
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