Dual, 1MHz, Operational Amplifiers for
Commercial Industrial, and Military
Applications
The CA158, CA158A, CA258, CA358, CA358A and CA2904
types consist of two independent, high gain, internally
frequency compensated operational amplifiers which are
designed specifically to operate from a single power supply
over a wide range of voltages. They may also be operated
from split power supplies. The supply current is basically
independent of the supply voltage over the recommended
voltage range.
These devicesareparticularly usefulininterface circuitswith
digital systems and can be operated from the single
common 5VDC power supply. They are also intended for
transducer amplifiers, DC gain blocks and many other
conventional op amp circuits which can benefit from the
single power supply capability.
The CA158, CA158A, CA258, CA358, CA358A, and
CA2904 types are an equivalent to or a replacement for the
industry types 158, 158A, 258, 258A, 358, 358A, and
CA2904.
Technical Data on LM Branded types is identical to the
corresponding CA Branded types.
Pinouts
CA158 (METAL CAN)
TOP VIEW
INV.
INPUT (A)
NON-INV.
INPUT (A)
V-
NON-INV.
INPUT (B)
4
3
5
2
-
A
+
+
B
-
6
INV.
INPUT (B)
OUTPUT (A)
1
8
7
OUTPUT (B)
V+
File Number1019.6
Features
• Internal Frequency Compensation for Unity Gain
• High DC Voltage Gain . . . . . . . . . . . . . . . . . . 100dB(Typ)
• Wide Bandwidth at Unity Gain . . . . . . . . . . . . .1MHz(Typ)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
1. This inputcurrent will onlyexist when thevoltage at anyofthe input leadsis driven negative.This current isdue to thecollectorbase junction ofthe
input PNPtransistorsbecoming forward biased andtherebyacting as input diodeclamps.In addition to thisdiode action, there is alsolateral NPN
parasitic transistor action on the IC chip. This transistor action can cause the output voltages of the amplifiers to go to the V+ voltage level (or to
ground foralarge overdrive) for thetimeduration that an input isdriven negative. This transistor actionis not destructive and normaloutput states
will re-establish when the input voltage, which was negative, again returns to a value greater than -0.3V.
2. The maximum output current is approximately 40mAindependentof the magnitude of V+. Continuous short circuits at V+ > 15V can cause
excessive power dissipation and eventual destruction. Short circuits from the output to V+ can cause overheating and eventual destruction of
the device. Destructive dissipation can result from simultaneous short circuits on both amplifiers.
3. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical SpecificationsValues Apply for Each Operational Amplifier. Supply Voltage V+ = 5V, V- = 0V,
Unless Otherwise Specified (Continued)
TEMP
PARAMETERTEST CONDITIONS
Output
Current
Short Circuit
Output Current (Note 2)
Crosstalkf = 1 to 20kHz
Total Supply CurrentRL = ∞Full-0.71.2-0.71.2mA
NOTES:
4. Due to the PNPinput stage the direction of the input current is out of theIC.No loading change exists on the input lines because the currentis
essentially constant, independent of the state of the output.
5. The input signal voltageandthe input common mode voltage should not be allowed to go negative by morethan0.3V. The positive limit of the
common mode voltage range is V+ - 1.5V, but either or both inputs can go to +32V without damage.
6. VO = 1.4V, RS = 0Ω with V+ from 5V to 30V, and over the full input common mode voltage range (0V to V+ - 1.5V).
SourceVI+ = +1V, VI- = 0V, V+ =
15V
SinkVI+ = 0V, VI- = 1V,
V+ = 15V
VI+ = 0V, VI- = 1V,
VO = 200mV
RL = 0Ω25-4060-4060mA
(Input Referred)
RL = ∞, V+ = 30VFull-1.53-1.53mA
(oC)
252040-2040-mA
251020-1020-mA
251250-1250-µA
25--120---120-dB
CA158ACA358A
UNITSMINTYPMAXMINTYPMAX
Electrical SpecificationsValues Apply for Each Operational Amplifier. Supply Voltage V+ = 5V, V- = 0V,