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LM2904AYDT-LM2904YDT
Low power, bipolar op-amp
January 2014 DocID2471 Rev 15 1/24
LM2904, LM2904ALow-power dual operational amplifier
Datasheet - production data
Features Internally frequency-compensated Large DC voltage gain: 100 dB Wide bandwidth (unity gain): 1.1 MHz
(temperature compensated) Very low supply current/amplifier, essentially
independent of supply voltage Low input bias current: 20 nA (temperature
compensated) Low input offset current: 2 nA Input common-mode voltage range includes
negative rail Differential input voltage range equal to the
power supply voltage Large output voltage swing 0 V to (VCC+ -1.5 V)
Related products: See LM2904W for enhanced ESD
performances
DescriptionThis circuit consists of two independent, high
gain, internally frequency-compensated
operational amplifiers designed specifically for
automotive and industrial control systems. It
operates from a single power supply over a wide
range of voltages. The low power supply drain is
independent of the magnitude of the power
supply voltage.
Application areas include transducer amplifiers,
DC gain blocks and all the conventional op-amp
circuits which can now be more easily
implemented in single power supply systems. For
example, these circuits can be directly supplied
from the standard +5 V which is used in logic
systems and easily provides the required
interface electronics without requiring any
additional power supply.
In the linear mode, the input common-mode
voltage range includes ground and the output
voltage can also swing to ground, even though
operated from a single power supply.
Contents LM2904, LM2904A2/24 DocID2471 Rev 15
Contents Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1 Typical single-supply applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Macromodel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 DFN8 2 x 2 mm package mechanical data . . . . . . . . . . . . . . . . . . . . . . . 17
6.3 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.4 MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID2471 Rev 15 3/24
LM2904, LM2904A Schematic diagram
1 Schematic diagram
Figure 1. Schematic diagram (1/2 LM2904)
Package pin connections LM2904, LM2904A
4/24 DocID2471 Rev 15 Package pin connections
Figure 2. DFN8 pin connections (top view) The exposed pad of the DFN8 2x2 can be connected to VCC- or left floating.
Figure 3. MiniSO8, TSSOP8 and SO8 package pin connections (top view)
DocID2471 Rev 15 5/24
LM2904, LM2904A Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply voltage (1) All voltage values, except differential voltage are with respect to network ground terminal.
±16 or 32 V
Vid Differential input voltage(2) Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
±32 V
Vin Input voltage -0.3 to 32 V
Output short-circuit duration (3) Short-circuits from the output to VCC can cause excessive heating if Vcc+ > 15 V. The maximum output current is approximately 40 mA, independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuits on all amplifiers.
Infinite s
Iin
Input current (4) : Vin driven negative
Input current (5) : Vin driven positive above AMR value This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward-biased and thereby acting as input diode clamp. In addition to this diode action, there is NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-amps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative.This is not destructive and normal output is restored for input voltages above -0.3 V. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with the inputs to limit the input current to 400 μA max (R = (Vin-32 V)/400 μA).
5 mA in DC or 50 mA in AC
(duty cycle = 10%, T = 1s)
Toper Operating free-air temperature range -40 to +125 °C
Tstg Storage temperature range -65 to +150 °C Maximum junction temperature 150 °C
Rthja
Thermal resistance junction to ambient(6)
SO-8
TSSOP8
MiniSO-8
DFN8 2x2 Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
°C/W
Rthjc
Thermal resistance junction to case(6)
SO-8
TSSOP8
MiniSO-8
°C/W
ESD
HBM: human body model(7) Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kW resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
300 V
MM: machine model(8) Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 W). This is done for all couples of connected pin combinations while the other pins are floating.
200 V
CDM: charged device model(9) Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins.
1.5 kV
