OPA2375 - Dual 10MHz Low-Noise CMOS Op Amp | Texas Instruments
MPN: OPA2375 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.85 | $0.85 |
| 10 | $0.76 | $7.60 |
| 100 | $0.6 | $60.00 |
| 500 | $0.51 | $255.00 |
| 1,000 | $0.43 | $430.00 |
Drop-in alternatives for OPA2375 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
OPA2375IPWR
✅ Drop-In✓ In Stock
$0.5 / Unit
View Datasheet →OPA2192IDR
⚡ Same Package✓ In Stock
$0.82 / Unit
View Datasheet →OPA2172
⚡ Same Package✓ In Stock
$0.92 / Unit
View Datasheet →OPA2325ID
⚡ Same Package📋 Reference alternative (not in catalog)
AD8606ARZ
✅ Drop-In✓ In Stock
$1.3 / Unit
View Datasheet →OPA2375 Maximum Ratings & Electrical Characteristics
| Channels | 2 (Dual) |
| Supply Voltage Range | 2.2 V to 5.5 V |
| Gain Bandwidth Product | 10 MHz |
| Input Noise Density | 4.6 nV/rtHz |
| Family Noise Figure | 3.5 nV/rtHz |
| Input Offset Voltage (Max) | 500 uV |
| Output Type | Rail-to-Rail Output (RRO) |
| Amplifier Type | CMOS, General Purpose |
| Slew Rate | [DATA_NEEDED: Slew Rate] |
| Quiescent Current Per Amp | [DATA_NEEDED: Quiescent Current] |
| Input Bias Current | [DATA_NEEDED: Input Bias Current] |
| Package | 8-TSSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | [DATA_NEEDED: Operating Temperature Range] |
| RoHS Status | Compliant |
| Family | OPAx375 (OPA375 / OPA2375 / OPA4375) |
OPA2375 Pin Configuration
| Pin 1 | OUT A — Channel A output (RRO) |
| Pin 2 | -IN A — Channel A inverting input |
| Pin 3 | +IN A — Channel A non-inverting input |
| Pin 4 | V- — Negative supply / ground |
| Pin 5 | +IN B — Channel B non-inverting input |
| Pin 6 | -IN B — Channel B inverting input |
| Pin 7 | OUT B — Channel B output (RRO) |
| Pin 8 | V+ — Positive supply, 2.2 V to 5.5 V |
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
OPA2375 is suitable for 6 applications: Sensor Signal Conditioning, Active Anti-Aliasing Filters, Photodiode Transimpedance Amplifier, Portable and Battery-Powered Medical Instrumentation, Industrial Analog Front Ends, Audio and Signal-Chain Buffering.
Sensor Signal Conditioning
The OPA2375's 500 uV maximum offset and 4.6 nV/rtHz noise preserve small sensor signals such as bridge and thermocouple outputs without DC-trim circuits. Its 10 MHz bandwidth supports fast-settling gain stages ahead of ADCs. Configured as a non-inverting amplifier with gain of 10 to 100, the dual channels handle signal and reference buffering in one 8-TSSOP footprint, halving board area versus two single-channel parts on 3.3V or 5V rails.
Recommended
Active Anti-Aliasing Filters
A 10 MHz gain-bandwidth product gives the OPA2375 ample loop gain for 2nd-order Sallen-Key or multiple-feedback low-pass filters with cutoffs up to several hundred kHz ahead of precision ADCs such as the ADS131M08. Rail-to-rail output maximizes filter swing on a single 5V rail, and 4.6 nV/rtHz input noise keeps the filter's noise contribution well below the ADC quantization floor, preserving total system SNR in data-acquisition chains.
Recommended
Photodiode Transimpedance Amplifier
CMOS input structure gives the OPA2375 very low input bias current, minimizing error with high-impedance photodiodes. The 10 MHz bandwidth supports TIA feedback resistor values in the hundreds of kilo-ohms with megahertz-class closed-loop response. A feedback capacitor sized per the datasheet stability equation compensates diode capacitance; the RRO allows full dynamic range from a 5V supply in optical sensing and barcode-scanning front ends.
Recommended
Portable and Battery-Powered Medical Instrumentation
Operation from 2.2V to 5.5V lets the OPA2375 run directly from a single lithium cell or 3.3V rail, while 4.6 nV/rtHz noise supports low-level biopotential and physiological sensor front ends. The dual channel integrates signal gain and buffering in one package, cutting BOM count for wearables and portable diagnostics. Rail-to-rail output preserves headroom, maximizing usable signal range on the low supply - a key factor in battery-operated medical devices.
Recommended
Industrial Analog Front Ends
In factory automation and process-control I/O modules, the OPA2375 amplifies and filters signals from industrial sensors before conversion. Its 10 MHz bandwidth supports fast control-loop sampling, and the 500 uV max offset keeps DC accuracy acceptable without calibration across 0-70C or wider industrial boards. The TSSOP-8 package suits dense multi-channel PLC analog cards where per-channel board area and cost both matter.
Recommended
Audio and Signal-Chain Buffering
With 4.6 nV/rtHz noise and 10 MHz bandwidth, the OPA2375 buffers DAC outputs and drives line-level audio stages with low added noise and excellent THD headroom. Rail-to-rail output swing on a single 5V rail suits USB-powered audio dongles and mixed-signal boards where negative rails are unavailable. One TSSOP-8 provides two channels - input buffer plus output driver - simplifying layout around audio codec and DAC companion devices.
Recommended
Recommended Products Summary
Engineering reference data for OPA2375 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | OPA2375IPWR | OPA2192IDR | AD8606ARZ | OPA2172 |
|---|---|---|---|---|---|
| Package | 8-TSSOP | 8-TSSOP - same | SOIC-8 (TSSOP variants available) | SOIC-8 | SOIC-8 / TSSOP-8 |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices | Texas Instruments |
| Channels | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) |
| Bandwidth | 10 MHz | 10 MHz | 2.2 MHz | [DATA_NEEDED] | 3 MHz |
| Supply Voltage | 2.2 V to 5.5 V | 2.2 V to 5.5 V | 2.2 V to 5.5 V | [DATA_NEEDED] | [DATA_NEEDED] |
| Input Offset (Max) | 500 uV | 500 uV | Lower (precision grade) | [DATA_NEEDED] | [DATA_NEEDED] |
| Output | Rail-to-Rail Output | RRO | RRO | Rail-to-Rail | RRO |
| Noise | 4.6 nV/rtHz | 4.6 nV/rtHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Low broadband noise for precision front ends (vs OPA2172)
- Wider bandwidth than TI precision alternate (vs OPA2192IDR)
- Cross-brand dual CMOS RRO equivalent with drop-in footprint (vs AD8606ARZ)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor at each supply pin (V+ pin 8) with a ground via within 2 mm of pin 4. Add a 2.2 uF to 10 uF bulk capacitor per board. Keep feedback traces short and direct; route high-impedance input traces away from switching nodes to prevent coupling the amplifier's nV-level noise floor from being dominated by layout-induced pickup. Refer to TI OPAx375 datasheet layout guidelines.
Source impedance directly adds Johnson noise: a 10 kOhm resistor contributes about 12.8 nV/rtHz, nearly 3x the OPA2375's 4.6 nV/rtHz input noise. Keep series resistance under 1 kOhm in noise-critical paths, or account for resistor noise in the error budget. For transimpedance stages, compute the feedback capacitor from diode capacitance and 10 MHz GBW to ensure 45 degrees or more phase margin.
Do not exceed the 5.5 V absolute maximum supply. The rail-to-rail OUTPUT (RRO) architecture means inputs do not swing to the rails - keep input common-mode within the datasheet range or clipping/distortion will occur. When substituting AD8606 or OPA2172, verify the same footprint AND offset/bandwidth against your error budget before release to production.
Compliance Information
RoHS compliant per TI product page. REACH/halogen/conflict-minerals status not stated in provided data.
