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PDF LM2904 Data sheet ( Hoja de datos )
| Número de pieza | LM2904 | |
| Descripción | Low-power dual operational amplifier | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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 1. PDF - Dual Operational Amplifier  Hay una vista previa y un enlace de descarga de LM2904 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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LM2904, LM2904A
Low-power dual operational amplifier
Datasheet - production data
Features
Frequency compensation implemented
internally
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
Description
This circuit consists of two independent, high
gain operational amplifiers (op amps) that have
frequency compensation implemented internally.
They are designed specifically for automotive and
industrial control systems. The circuit 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
electronic interfaces without requiring any
additional power supply.
In 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.
February 2016
DocID2471 Rev 17
This is information on a product in full production.
1/24
www.st.com
1 page  
LM2904, LM2904A
Absolute maximum ratings and operating
conditions
3
Symbol
VCC
Vid
Vin
Iin
Toper
Tstg
Tj
Rthja
Rthjc
ESD
Absolute maximum ratings and operating conditions
Table 1: Absolute maximum ratings
Parameter
Value
Supply voltage (1)
Differential input voltage (2)
±16 or 32
±32
Input voltage
Output short-circuit duration (3)
-0.3 to 32
Infinite
Input current (4): Vin driven negative
Input current (5): Vin driven positive above AMR value
5 mA in DC or 50 mA in AC,
(duty cycle = 10 %, T = 1 s)
0.4
Operating free-air temperature range
-40 to 125
Storage temperature range
-65 to 150
Maximum junction temperature
150
DFN8 2x2
57
Thermal resistance junction to ambient (6)
MiniSO8
TSSOP8
190
120
SO8
125
Thermal resistance junction to case (6)
MiniSO8
TSSOP8
39
37
HBM: human body model (7)
MM: machine model (8)
CDM: charged device model (9)
SO8
40
300
200
1.5
Unit
V
s
mA
°C
°C/W
V
kV
Notes:
(1)All voltage values, except differential voltage are with respect to network ground terminal.
(2)Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
(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.
(4)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 an 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.
(5)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).
(6)Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
(7)Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between
two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
(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 Ω). This is done for all couples of connected pin combinations while the other
pins are floating.
(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.
DocID2471 Rev 17
5/24
5 Page 
LM2904, LM2904A
Figure 16: Gain bandwidth product
Electrical characteristic curves
Figure 17: Power supply rejection ratio
Figure 18: Common-mode rejection ratio
Figure 19: Phase margin vs capacitive load
DocID2471 Rev 17
11/24
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LM2904.PDF ] | |
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