Product Descriptions
Rail-to-rail output swing combined with dc accuracy are the key features of the OP495 quad and OP295 dual CBCMOS operational amplifiers. By using a bipolar front end, lower noise and higher accuracy than those of CMOS designs have been achieved. Both input and output ranges include the negative supply, providing the user with zero-in/zero-out capability. For users of 3.3 V systems such as lithium batteries, the OP295/OP495 are specified for 3 V operation.
Maximum offset voltage is specified at 300 μV for 5 V operation, and the open-loop gain is a minimum of 1000 V/mV. This yields performance that can be used to implement high accuracy systems, even in single-supply designs.
The ability to swing rail-to-rail and supply 15 mA to the load makes the OP295/OP495 ideal drivers for power transistors and H bridges. This allows designs to achieve higher efficiencies and to transfer more power to the load than previously possible without the use of discrete components.
For applications such as transformers that require driving inductive loads, increases in efficiency are also possible. Stability while driving capacitive loads is another benefit of this design over CMOS rail-to-rail amplifiers. This is useful for driving coax cable or large FET transistors. The OP295/OP495 are stable with loads in excess of 300 pF.
The OP295 and OP495 are specified over the extended industrial (−40°C to +125°C) temperature range. The OP295 is available in 8-lead PDIP and 8-lead SOIC_N surface-mount packages. The OP495 is available in 14-lead PDIP and 16-lead SOIC_W surface-mount packages.
Product Features
Rail-to-rail output swing
Single-supply operation: 3 V to 36 V
Low offset voltage: 300 μV
Gain bandwidth product: 75 kHz
High open-loop gain: 1000 V/mV
Unity-gain stable
Low supply current/per amplifier: 150 μA maximum
Product Applications
Battery-operated instrumentation
Servo amplifiers
Actuator drives
Sensor conditioners
Power supply control
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-OP295GP |
| Category | Integrated Circuits (ICs) |
| Linear | |
| Amplifiers | |
| Instrumentation, Op Amps, Buffer Amps | |
| Mfr | - |
| Series | - |
| Packaging | Tube |
| Part Status | Obsolete |
| Amplifier Type | Standard (General Purpose) |
| Number of Circuits | 2 |
| Output Type | Rail-to-Rail |
| Slew Rate | 0.03V/µs |
| Gain Bandwidth Product | 75 kHz |
| Current - Input Bias | 7 nA |
| Voltage - Input Offset | 300 µV |
| Current - Supply | - |
| Current - Output / Channel | 25 mA |
| Voltage - Supply Span (Min) | 3 V |
| Voltage - Supply Span (Max) | 36 V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-PDIP |
| Base Product Number | OP295 |
Product Photos
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