OPA602AP - 6.5MHz Precision Difet Op Amp | Texas Instruments
MPN: OPA602AP β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for OPA602AP β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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OPA602BP
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$4.05 / Unit
View Datasheet βOPA602AP Maximum Ratings & Electrical Characteristics
| Amplifier Type | High-Speed Precision Difet Operational Amplifier |
| Number of Channels | 1 |
| Bandwidth | 6.5 MHz |
| Slew Rate | 35 V/us |
| Input Offset Voltage | +/-250 uV max |
| Input Bias Current | +/-1 pA max |
| Settling Time | to 0.01% |
| Stability | Unity-gain stable |
| Capacitive Load Drive | up to 1500 pF |
| Supply Voltage | +/-18 V |
| Package | 8-PDIP |
| Mounting Type | Through Hole |
| Packaging | Tube |
| Technology | Difet (dielectrically isolated FET), laser-trimmed |
| Rated Load Condition | 1 kOhm in parallel with 500 pF |
| Category | Instrumentation, Op Amps, Buffer Amps |
OPA602AP Pin Configuration
| Pin 1 | TRIM β Offset voltage trim terminal A |
| Pin 2 | IN- β Inverting input |
| Pin 3 | IN+ β Non-inverting input |
| Pin 4 | V- β Negative supply |
| Pin 5 | TRIM β Offset voltage trim terminal B |
| Pin 6 | OUT β Output |
| Pin 7 | V+ β Positive supply |
| Pin 8 | NC β Not connected (per datasheet) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
OPA602AP is suitable for 6 applications: Precision Instrumentation, Optoelectronics Receivers, Sonar Signal Processing, Ultrasound Equipment, Data Conversion Signal Conditioning, Analog Multiplier and Compute Circuits.
Precision Instrumentation
The OPA602AP fits precision instrumentation front ends where DC accuracy and dynamic fidelity must coexist. Its +/-250 uV maximum offset voltage and laser-trimmed input circuitry preserve measurement accuracy, while the +/-1 pA maximum bias current prevents loading of high-impedance sensors such as photodiodes and piezoelectric transducers. In a typical amplifier stage, the 6.5 MHz bandwidth and 35 V/us slew rate keep gain errors low across the signal band, and fast settling to 0.01% supports multiplexed data-acquisition channels that must settle between samples. The unity-gain stable topology and 1500 pF capacitive-load drive allow direct buffering of anti-aliasing filter nodes and long shielded cables without external compensation, reducing component count in instrumentation signal chains.
Recommended
Optoelectronics Receivers
In optoelectronics applications such as photodiode transimpedance amplifiers, the OPA602AP's Difet input stage is decisive: the +/-1 pA maximum bias current means input leakage contributes almost no offset to the photodiode current, preserving low-light sensitivity. The laser-trimmed +/-250 uV offset keeps the DC operating point of high-gain receiver stages accurate without trimming in many designs. Dynamic performance matters equally - the 6.5 MHz bandwidth supports fast optical pulse detection, and the 35 V/us slew rate prevents slew-induced distortion on leading edges. Because specifications are rated with a 1 kOhm in parallel with 500 pF load, the amplifier tolerates the capacitance of larger-area photodiodes, and unity-gain stability plus 1500 pF drive simplifies buffering the transimpedance output into cable runs or converters.
Recommended
Sonar Signal Processing
The OPA602AP is explicitly listed by Texas Instruments for sonar applications, where receive-chain amplifiers must handle large dynamic-range pulse signals with minimal error. The 35 V/us slew rate ensures the amplifier tracks fast sonar echo edges without slew limiting, while the 6.5 MHz bandwidth covers the harmonics needed for pulse fidelity. DC stability matters during quiet periods: the +/-250 uV maximum offset and picoampere bias current prevent baseline drift that would otherwise consume ADC headroom. Operation from +/-18 V supplies provides generous signal swing for high-amplitude transducer outputs. Fast settling to 0.01% lets time-gated receive windows open immediately after transmit pulses, and unity-gain stability eases use in active filter and gain-programmable stages of the sonar front end.
Recommended
Ultrasound Equipment
Medical and industrial ultrasound receivers use the OPA602AP in preamplifier and filter stages because pulse accuracy directly determines image resolution. The 6.5 MHz bandwidth and 35 V/us slew rate preserve the shape of MHz-range echo bursts, minimizing distortion that would blur time-of-flight measurements, while settling to 0.01% supports fast TGC (time-gain compensation) switching. The +/-250 uV offset and +/-1 pA bias keep the receive baseline stable across temperature, which the laser-trimmed Difet input makes practical without field calibration. The +/-18 V supply range accepts the large transmit-recovery transients typical of piezoelectric arrays. Unity-gain stability and 1500 pF capacitive drive let one OPA602AP stage directly drive the input filter or ADC driver network without external compensation capacitors.
Recommended
Data Conversion Signal Conditioning
The OPA602AP serves as an ADC driver and DAC output conditioner because, per the datasheet, its high slew rate and fast settling time allow accurate signal processing in pulse and data conversion applications. Settling to 0.01% (effectively 12-bit-level accuracy) ensures the amplifier presents a settled voltage to the converter within the acquisition window, while low distortion minimizes AC errors that degrade SNR and THD. The +/-1 pA bias current makes it suitable in the feedback networks of switched-capacitor and R-2R DAC outputs without introducing error currents. Its ability to drive up to 1500 pF lets it directly stabilize large ADC input capacitors. Precision ADC companions such as the CS5532 benefit from this clean, settled drive at the analog input.
Recommended
Analog Multiplier and Compute Circuits
Legacy analog computation blocks - multipliers, log amps, and precision summing nodes - use the OPA602AP as the active element around devices such as the MPY100 analog multiplier. Here the op amp's DC precision sets system accuracy: the +/-250 uV maximum offset contributes directly to output error, and the +/-1 pA bias current keeps summing-junction error negligible with large feedback resistors. Simultaneously, the 6.5 MHz bandwidth and 35 V/us slew rate preserve computation bandwidth for dynamic signals, and settling to 0.01% guarantees the computed result is valid quickly. The offset-trim pins (1 and 5) allow nulling residual offset in highest-accuracy compute loops, a feature the standard 8-pin PDIP pinout exposes directly on the board.
Recommended
Recommended Products Summary
Engineering reference data for OPA602AP β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | OPA602BP |
|---|---|---|
| Package | 8-PDIP | 8-PDIP - same |
| Brand | Texas Instruments (Burr-Brown) | Texas Instruments (Burr-Brown) |
| Bandwidth | 6.5 MHz | 6.5 MHz |
| Slew Rate | 35 V/us | 35 V/us |
| Input Offset Voltage | +/-250 uV max | tighter grade limit (lower than AP) |
| Input Bias Current | +/-1 pA max | +/-1 pA max |
| Supply Voltage | +/-18 V | +/-18 V |
| Grade / Accuracy Class | Standard precision (AP) | High precision (BP) |
Key Differentiators
- Difet process combines pA bias with high speed (vs OPA602BP)
- Unusual capacitive-load drive for a precision amplifier (vs OPA602BP)
- High supply range in a legacy through-hole package (vs OPA602BP)
Design Notes
The OPA602AP is a through-hole PDIP-8 part; keep the feedback path short even on through-hole layouts to preserve the 6.5 MHz bandwidth. Use a ground plane with clearance under pins 2 and 3 to minimize leakage - at +/-1 pA bias current, PCB surface leakage can exceed input bias by orders of magnitude. Guard rings driven at the input potential around the summing junction are recommended for transimpedance applications, and a 100 nF ceramic capacitor placed within a few millimeters of pins 4 and 7 to ground handles supply transients during 35 V/us slewing.
Do not evaluate the datasheet dynamic specifications at arbitrary loads: the TI datasheet rates all specifications with a 1 kOhm resistor in parallel with a 500 pF load, so a different load network can yield different bandwidth and settling behavior. Also, while the OPA602 drives up to 1500 pF capacitively and is unity-gain stable, heavy capacitive loads combined with high closed-loop gain can introduce peaking - verify phase margin by simulation or bench measurement in the final configuration rather than relying on the 1500 pF figure alone.
Supply the OPA602AP from well-regulated +/-15 V to +/-18 V rails within the +/-18 V maximum. The Difet process gives excellent rejection, but high-speed slewing (35 V/us) draws transient supply current that can couple into neighboring precision circuitry through shared supply impedance; use local 100 nF plus 10 uF decoupling per supply pin. For lowest offset error, take advantage of the offset-trim pins (1 and 5) with the trim network shown in the TI datasheet instead of over-specifying the grade - or select the OPA602BP grade when trimming is impractical.
Compliance Information
Compliance status for the legacy PDIP-8 OPA602AP was not stated in the verified web data; consult the TI product page or distributor compliance certificates.
