OPA2375SIRUGR - Dual 10MHz RRO CMOS Op Amp | TI
MPN: OPA2375SIRUGR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.05 | $1.05 |
| 10 | $1.02 | $10.20 |
| 100 | $0.95 | $95.00 |
| 500 | $0.88 | $440.00 |
| 1,000 | $0.8 | $800.00 |
Drop-in alternatives for OPA2375SIRUGR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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OPA2375AIRUGR
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
OPA2375SIRUGR Maximum Ratings & Electrical Characteristics
| Number of Channels | 2 |
| Gain Bandwidth Product | 10 MHz |
| Slew Rate | 4.6 V/us |
| Input Offset Voltage (Max) | 500 uV |
| Input Voltage Noise Density | 4.6 nV/sqrt(Hz) |
| Output Type | Rail-to-Rail Output (RRO) |
| Amplifier Type | CMOS General-Purpose Operational Amplifier |
| Supply Voltage (Max) | 5.5 V |
| Input Bias Current Type | CMOS (low bias current) |
| Package | X2QFN-10 (RU), 1.5 mm x 2.0 mm |
| Mounting Type | Surface Mount |
| Family | OPAx375 (OPA375 / OPA2375 / OPA4375) |
OPA2375SIRUGR x2qfn-10 (ru), 1.5 mm x 2.0 mm Pin Configuration Guide
Complete pinout information for OPA2375SIRUGR (x2qfn-10 (ru), 1.5 mm x 2.0 mm package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for OPA2375SIRUGR.
Refer to the datasheet for full pin configuration.
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
OPA2375SIRUGR is suitable for 6 applications: Precision ADC Signal Conditioning, Sensor Buffer and Amplification, Active Filter Stages, Portable and Wearable Electronics, Battery Management System Support Circuits, Industrial Instrumentation Signal Chains.
Precision ADC Signal Conditioning
The OPA2375SIRUGR fits precision data-acquisition front ends because its 10 MHz gain-bandwidth and 4.6 V/us slew rate leave large margin for active anti-aliasing filters, while the 500 uV maximum offset preserves DC accuracy without software calibration. Its 4.6 nV/sqrt(Hz) input noise is typically below the input-referred noise of modern 16- to 24-bit delta-sigma ADCs, so the amplifier does not dominate the noise budget. In a typical chain, one channel buffers the sensor output in unity gain while the second implements a second-order multiple-feedback low-pass filter ahead of the converter. The dual channel integration halves board area versus two single op amps. The rail-to-rail output maximizes converter input span on 3.3 V or 5 V rails; verify input common-mode range, since the RRO stage does not extend to the input.
Recommended
Sensor Buffer and Amplification
Low-output-impedance buffering is essential when interfacing high-impedance sensors such as piezoelectric, photodiode, or bridge transducers to sampling ADC inputs. The OPA2375SIRUGR's CMOS input provides very low bias current, so it minimizes offset errors caused by source impedance, while the 10 MHz bandwidth keeps settling time short between ADC sampling instants - important because an unterminated switched-capacitor ADC input can draw transient charge that a slow amplifier cannot refill. The 500 uV maximum offset keeps DC-referenced measurements accurate across temperature. One channel typically buffers the signal while the second builds gain or an active filter, saving board space in compact sensor nodes. Design with a small series resistor near the ADC pin and tight supply decoupling to handle charge-injection transients cleanly.
Recommended
Active Filter Stages
The OPA2375SIRUGR is well suited to Sallen-Key and multiple-feedback active filters operating from audio frequencies up to several hundred kilohertz. The 10 MHz gain-bandwidth means the amplifier's closed-loop bandwidth is far above the filter cutoff, minimizing Q-enhancement and corner-frequency error that plague op amps with marginal bandwidth; a rule of thumb is GBW at least 20x to 100x the filter cutoff. The 4.6 nV/sqrt(Hz) noise keeps filter self-noise low in measurement paths, and the RRO output drives following stages across the full supply range. Using the dual package lets one device implement two filter poles (a second-order section), simplifying BOM management. Keep feedback resistors in the low-kilohm range to limit Johnson noise and to keep parasitic capacitance effects small at high cutoff frequencies.
Recommended
Portable and Wearable Electronics
In battery-powered and wearable designs, board area and supply voltage are the dominant constraints, and the OPA2375SIRUGR addresses both: the X2QFN-10 package measures just 1.5 mm x 2.0 mm, one of the smallest footprints available for a dual precision op amp, and the amplifier operates from supplies up to 5.5 V, compatible with single-cell lithium-ion (down to about 2.5 V under load) and 3.3 V rails. The CMOS process keeps quiescent consumption appropriate for battery life targets, and the rail-to-rail output extracts maximum signal swing from a low supply. Typical uses include biopotential front-end gain stages, optical sensor buffering in wearables, and general analog conditioning in handheld instruments. Note that the fine-pitch X2QFN requires careful PCB land-pattern design and reflow profiling; hand rework is difficult, so plan pilot builds accordingly.
Recommended
Battery Management System Support Circuits
Modern battery management systems built around controllers such as the TI BQ76952 require local analog conditioning - filtering of cell-voltage sense lines, buffering of reference signals, and gain stages for auxiliary measurements. The OPA2375SIRUGR fits these roles with its 500 uV maximum offset maintaining measurement accuracy, low CMOS noise keeping cell-monitoring signals clean, and a 5.5 V maximum supply matching typical BMS analog domains. The dual channels let one package handle two filtering or buffering tasks, reducing component count on dense BMS boards. Because the BQ76952 family samples cell voltages through multiplexed inputs, the amplifier's 10 MHz bandwidth ensures fast settling after each multiplexer switch, avoiding sample-error from incomplete settling. Decouple each supply pin with 100 nF close to the package and keep analog ground returns star-routed.
Recommended
Industrial Instrumentation Signal Chains
Industrial instruments - process transmitters, data loggers, and test fixtures - need analog stages that combine DC precision with enough bandwidth for dynamic signals. The OPA2375SIRUGR provides 500 uV maximum offset for accurate DC measurement, 10 MHz GBW for fast loops and filters, and rail-to-rail output that spans the full ADC input range on 5 V industrial supplies. Its dual-channel format allows one device to implement, for example, a gain stage plus a 2nd-order anti-alias filter, trimming cost and board space in cost-sensitive industrial designs. The 1.5 mm x 2.0 mm X2QFN suits dense multi-channel boards; if field serviceability matters more than area, the electrically identical OPA2375IDDFR in a leaded package is easier to solder and rework. Evaluate creepage and assembly process capability before committing to the X2QFN footprint in production.
Recommended
Recommended Products Summary
Engineering reference data for OPA2375SIRUGR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | OPA2375AIRUGR |
|---|---|---|
| Package | X2QFN-10 (RU) 1.5 mm x 2.0 mm | X2QFN-10 (RU) - same |
| Brand | Texas Instruments | Texas Instruments |
| Gain Bandwidth Product | 10 MHz | 10 MHz |
| Number of Channels | 2 | 2 |
| Input Offset Voltage (Max) | 500 uV | 500 uV |
| Output Type | Rail-to-Rail Output (RRO) | Rail-to-Rail Output (RRO) |
| Max Supply Voltage | 5.5 V | 5.5 V |
| Family Members (single/dual/quad) | OPA2375 (dual) in OPAx375 family | OPA2375 (dual) in OPAx375 family |
Key Differentiators
- 10 MHz bandwidth in an ultra-small X2QFN-10 footprint (vs OPA2172)
- Family scalability single/dual/quad with identical specs (vs OPA2375AIRUGR)
- Rail-to-rail output maximizes ADC dynamic range (vs OPA2172)
Design Notes
The X2QFN-10 (RU) package measures only 1.5 mm x 2.0 mm with fine pitch perimeter lands. Follow the TI datasheet land-pattern and stencil recommendations exactly - typical guidance is 0.4 mm-class pitch lands with reduced stencil apertures (around 80% area ratio compensation) to prevent solder bridging. Add a 100 nF ceramic decoupling capacitor within 2 mm of each supply pin and place it on the same layer as the IC for lowest inductance.
The OPA2375 provides rail-to-rail OUTPUT only, not rail-to-rail input. In low-supply designs (2.5 V to 3.3 V), verify the input common-mode voltage stays within the datasheet input range; driving inputs beyond it can cause nonlinear gain or long recovery. Also, the 'S' grade ordering suffix carries specific temperature-range meaning in TI nomenclature - confirm the required grade (e.g., 'A' versus 'S') before release, since the pin-compatible OPA2375AIRUGR covers the standard -40C to +125C industrial range.
When driving switched-capacitor or delta-sigma ADC inputs (for example the ADS131M08 family), place a small series resistor (tens of ohms) plus a charge-reservoir capacitor at the ADC pin so the OPA2375 only supplies average current, not instantaneous charge kickback. Keep feedback resistors in the 1 kohm to 10 kohm range: lower values reduce noise and parasitic sensitivity at the 10 MHz bandwidth, higher values add Johnson noise and make the loop vulnerable to stray capacitance.
Compliance Information
Compliance data not present in the retrieved web data. Texas Instruments generally manufactures RoHS-compliant lead-free parts, but per policy the status must be confirmed on the official TI product page before export documentation.
