TP2274 - 36V Quad 7MHz EMI-Hardened CMOS Op-Amp | 3PEAK
MPN: TP2274 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.5513 | $0.55 |
| 10 | $0.496 | $4.96 |
| 100 | $0.387 | $38.70 |
| 500 | $0.298 | $149.00 |
| 1,000 | $0.249 | $249.00 |
| 3,000 | $0.189 | $567.00 |
TP2274 Overview
A CMOS operational amplifier is a high-gain DC-coupled differential amplifier built on a complementary metal-oxide-semiconductor process. CMOS op-amps combine low input bias current (sub-pA to pA range), rail-to-rail output capability, and low quiescent current, and they form a hypernym hierarchy of linear IC -> amplifier IC -> operational amplifier -> CMOS op-amp. The TP2274 family (TP2271 single, TP2272 dual, TP2274 quad) is targeted at precision, low-voltage applications where EMI immunity is required, replacing general-purpose bipolar parts in noise-dense environments such as industrial sensor conditioning and motor-drive boards.
Key features include a typical input offset voltage (Vos) of 1 mV maximum, 19 nV/√Hz input voltage noise density at 1 kHz, 126 dB open-loop DC gain (AOL), 80 mA short-circuit output current, and an operating temperature range of -40 °C to +125 °C. The TP2274 also offers 2 µV/°C offset drift and 900 µA typical quiescent current per amplifier, balancing speed with low power consumption for portable instrumentation.
Internally, the TP2274 uses a CMOS input stage with an EMI-hardened front end and a class-AB output stage for rail-to-rail swing. Its 7-MHz GBW and 20-V/μs slew rate are tuned for medium-speed signal-chain applications rather than high-precision instrumentation, and the 84 dB EMIRR at 900 MHz allows the amplifier to reject RF interference from nearby switching regulators and wireless modules without rectification-induced DC errors.
Typical applications include current-sensing I/V converters, multi-channel sensor signal conditioning, active filters in audio front-ends, and general-purpose signal amplification in industrial, automotive, and consumer systems. A common companion part is a high-precision ADC such as the ADS1256 for downstream digitization, or a low-dropout regulator to feed the analog supply rail.
When designing with this device, keep input and feedback traces short to preserve the 7-MHz bandwidth and minimize parasitic capacitance, and add a small series resistor (10-50 Ω) at the output when driving more than a few hundred picofarads. Use a stable, low-noise supply on the analog rail to fully exploit the EMIRR figure.
This page synthesizes distributor pricing, drop-in cross-references, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for TP2274 — 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:
TP2274-SR
✅ Drop-In📋 Reference alternative (not in catalog)
TP2274-SO2R
✅ Drop-In📋 Reference alternative (not in catalog)
TLC2274
✅ Drop-In📋 Reference alternative (not in catalog)
TLV2374
✅ Drop-In📋 Reference alternative (not in catalog)
OPA4347
✅ Drop-In📋 Reference alternative (not in catalog)
TP2274 Maximum Ratings & Electrical Characteristics
| Number of Channels | 4 (Quad) |
| Amplifier Type | CMOS, EMI-Hardened Operational Amplifier |
| Supply Voltage Range (Single) | 2.7 V to 36 V |
| Quiescent Current (per amplifier) | 900 µA typical |
| Gain-Bandwidth Product (GBW) | 7 MHz |
| Slew Rate | 20 V/µs |
| Input Offset Voltage (Vos) | 1 mV max |
| Input Offset Voltage Drift (dVos/dT) | 2 µV/°C |
| Input Bias Current | 1 fA typical (0.001 pA per JLCPCB listing) |
| Input Voltage Noise Density | 19 nV/√Hz at 1 kHz |
| Open-Loop DC Gain (AOL) | 126 dB |
| EMIRR (EMI Rejection Ratio) | 84 dB at 900 MHz |
| Output Type | Rail-to-Rail Output (RRO) |
| Short-Circuit Output Current | 80 mA |
| Capacitive Load Drive | Up to 100 pF (unity-gain stable) |
| Operating Temperature Range | -40 °C to +125 °C |
| Package | 14-pin SOIC (SO-14 / SOT-14 equivalent) |
| RoHS Status | Compliant (per JLCPCB listing) |
TP2274 Pin Configuration
| Pin 1 | OUT1 — Output of amplifier 1 |
| Pin 2 | IN1- — Inverting input of amplifier 1 |
| Pin 3 | IN1+ — Non-inverting input of amplifier 1 |
| Pin 4 | VCC- / GND — Negative supply (or ground for single-supply operation) |
| Pin 5 | IN2+ — Non-inverting input of amplifier 2 |
| Pin 6 | IN2- — Inverting input of amplifier 2 |
| Pin 7 | OUT2 — Output of amplifier 2 |
| Pin 8 | OUT3 — Output of amplifier 3 |
| Pin 9 | IN3- — Inverting input of amplifier 3 |
| Pin 10 | IN3+ — Non-inverting input of amplifier 3 |
| Pin 11 | VCC+ — Positive supply |
| Pin 12 | IN4+ — Non-inverting input of amplifier 4 |
| Pin 13 | IN4- — Inverting input of amplifier 4 |
| Pin 14 | OUT4 — Output of amplifier 4 |
Typical Applications
TP2274 is suitable for 7 applications: Multi-Channel Sensor Signal Conditioning, Current-Sensing I/V Converters, Active Audio Filters and Crossover Networks, Automotive Sensor and ECU Signal Chains, Photodiode and Photovoltaic Transimpedance Amplifiers, Industrial Process Control and PLC Analog Modules, Portable Battery-Powered Instrumentation.
Multi-Channel Sensor Signal Conditioning
The TP2274 is well suited to four-channel sensor signal conditioning for industrial and IoT front-ends, where its 36-V supply tolerance accepts 24-V industrial rails without additional protection. Each of the four channels delivers 19 nV/√Hz input noise and 1 mV max Vos, allowing direct conditioning of strain gauges, thermocouples, and 4-20 mA loops with minimal downstream filtering. With 84 dB EMIRR at 900 MHz, the amplifier maintains accuracy even when co-located with wireless modules or switching converters on the same PCB. Designers typically use the first two channels for instrumentation amplification and the remaining two for active filtering before a 16-bit SAR ADC such as ADS1256.
Recommended
Current-Sensing I/V Converters
The TP2274's 7-MHz gain-bandwidth product and 20-V/µs slew rate make it a strong choice for current-sensing I/V converters in motor-drive and power-supply feedback loops. Each channel can convert a 0-50 mA sense current into a 0-5 V output through a low-side shunt resistor, supporting 100 kHz+ PWM-edge bandwidth without slew-induced distortion. The 80 mA short-circuit output current directly drives opto-isolators or ADC reference inputs without an additional buffer, while the rail-to-rail output swing maximizes dynamic range on 3.3 V or 5 V analog rails. Compared with the older TP2271 single-channel part, the quad TP2274 allows four simultaneous shunt measurements in a single IC.
Recommended
Active Audio Filters and Crossover Networks
With 7-MHz bandwidth and rail-to-rail output swing, the TP2274 is well suited to active audio filter implementations such as Sallen-Key low-pass, high-pass, and multi-pole bandpass stages in crossover networks. The 19 nV/√Hz noise density is low enough for 16-bit audio paths, and the 84 dB EMIRR at 900 MHz keeps cellular and Bluetooth interference from corrupting audio quality. A typical application uses two TP2274 channels per channel of audio to implement 2nd and 3rd-order Butterworth filters below 50 kHz. The part's 80 mA drive capability allows direct headphone-line driving after a final gain stage, eliminating the need for a separate line driver.
Recommended
Automotive Sensor and ECU Signal Chains
The TP2274's -40 °C to +125 °C operating temperature range and 36-V supply tolerance target automotive ECU signal-chain designs that must survive load-dump transients and battery cranking dips. Each of the four channels provides 19 nV/√Hz noise and 1 mV max Vos, sufficient for 0-5 V analog sensor inputs from MAP, MAF, and oxygen sensors. The 84 dB EMIRR at 900 MHz rejects AM/FM and cellular RF energy that is present throughout the vehicle chassis, reducing rectification-induced DC errors that would otherwise drift the signal chain. The TP2274-SO2R tape-and-reel variant supports high-volume automotive assembly lines.
Recommended
Photodiode and Photovoltaic Transimpedance Amplifiers
The TP2274's low input bias current (sub-pA typical) and 7-MHz bandwidth make it a viable transimpedance amplifier for photodiode and photovoltaic front-ends in instrumentation and light-metering designs. Each channel supports gains from 10 kΩ to 1 MΩ feedback resistors with stable operation into 100 pF of photodiode-plus-PCB capacitance, thanks to its unity-gain-stable design. The rail-to-rail output maximizes dynamic range when measuring both bright sunlight (mA-level photocurrents) and low-light conditions (nA-level) on the same rail. A typical 4-channel implementation handles red/green/blue plus clear photodiodes for a color sensor.
Recommended
Industrial Process Control and PLC Analog Modules
In industrial process control and PLC analog modules, the TP2274 provides four independent op-amp channels that tolerate 24-V field wiring while delivering accurate low-level signal amplification. Each channel handles ±10 V industrial signals via the 36-V supply headroom and offers 19 nV/√Hz input noise for 16-bit measurement resolution. The 84 dB EMIRR rating suppresses RF interference from VFD motor drives and switching relays commonly found on factory floors. A typical 8-channel module pairs two TP2274 ICs for 8 differential inputs feeding an ADS1256 ADC, with the TP2274 channels providing both level shifting and anti-aliasing first-order filtering.
Recommended
Portable Battery-Powered Instrumentation
Although the TP2274's 900 µA-per-channel quiescent current is higher than nanopower op-amps, its 36-V supply range and rail-to-rail output make it useful in portable instrumentation running from 2.7 V Li-ion battery rails. Each channel provides 7-MHz bandwidth for active filtering of sensor signals, and the 1 mV max Vos keeps measurement accuracy high in hand-held multimeter and data-logger designs. Compared with the lower-power TP2271 single-channel variant, the TP2274 lets designers consolidate four amplifier functions onto one chip, reducing both PCB area and BOM cost in space-constrained portable housings.
Recommended
Recommended Products Summary
Engineering reference data for TP2274 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TP2274-SR | TP2274-SO2R | TLC2274 | TLV2374 | OPA4347 |
|---|---|---|---|---|---|---|
| Brand | 3PEAK | 3PEAK | 3PEAK | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 14-pin SOIC | 14-pin SOIC - same | 14-pin SOIC - same | 14-pin SOIC - same | 14-pin SOIC - same | 14-pin SOIC - same |
| Channels | 4 (Quad) | 4 | 4 | 4 | 4 | 4 |
| Supply Voltage Range (Single) | 2.7 V to 36 V | 2.7 V to 36 V | 2.7 V to 36 V | 2.7 V to 16 V | 2.7 V to 16 V | 2.7 V to 36 V |
| Gain-Bandwidth Product | 7 MHz | 7 MHz | 7 MHz | 2.2 MHz | 3 MHz | 1 MHz |
| Slew Rate | 20 V/µs | 20 V/µs | 20 V/µs | 3.6 V/µs | 2 V/µs | 0.5 V/µs |
| Input Voltage Noise Density | 19 nV/√Hz at 1 kHz | 19 nV/√Hz | 19 nV/√Hz | 50 nV/√Hz | 39 nV/√Hz | 60 nV/√Hz |
| Input Offset Voltage (max) | 1 mV | 1 mV | 1 mV | 2.5 mV | 4.5 mV | 5 mV |
| Quiescent Current (per channel) | 900 µA | 900 µA | 900 µA | 1.1 mA | 550 µA | 17 µA |
| Output Swing | Rail-to-Rail Output | Rail-to-Rail Output | Rail-to-Rail Output | Rail-to-Rail Output | Rail-to-Rail I/O | Rail-to-Rail I/O |
| Approx. Unit Price (qty 1000) | $0.249 | $0.249 | $0.249 | $2.10 (TI list) | $1.65 (TI list) | $2.30 (TI list) |
Key Differentiators
- 84 dB EMIRR at 900 MHz vs no specified EMIRR on competing 36-V quad op-amps (vs TLC2274)
- Higher GBW and slew rate in the same 14-pin SOIC footprint (vs OPA4347)
- Approximately 88% lower unit cost at qty 1000 vs TI cross-brand equivalents (vs TLC2274)
- Higher 36 V supply tolerance matches TI TLV2374 family line (vs TLV2374)
Design Notes
Estimated: place a 100 nF X7R ceramic bypass capacitor within 3 mm of the TP2274's VCC+ pin (pin 11) and a 10 µF bulk tantalum or aluminum-polymer capacitor at the analog supply rail. Use a ground-return via adjacent to each input and output pin to keep parasitic inductance below 2 nH and preserve the 7-MHz bandwidth at full gain.
Keep input traces short and route the inverting input feedback network close to the device to minimize stray capacitance that would otherwise degrade the 20-V/µs slew rate. For high-impedance sensor inputs, surround the input traces with a grounded guard ring to reduce leakage paths on the PCB. Avoid routing digital lines directly adjacent to the analog inputs to fully exploit the TP2274's 84 dB EMIRR figure.
Do not exceed the 36-V absolute maximum supply rating - even brief load-dump transients in 24-V industrial systems can destroy the TP2274 if no TVS clamp is present. For capacitive loads above 100 pF, insert a 10-50 Ω series output resistor to maintain unity-gain stability, and verify that the closed-loop bandwidth still meets the application requirement. When using the TP2274 as a transimpedance amplifier, choose a feedback capacitor (typically 1-10 pF) to compensate for total input capacitance including the photodiode.
For driving SAR ADCs directly from the TP2274 output, add a 10-Ω series resistor to isolate the amplifier from the ADC's switched-capacitor kickback. This is especially important when the TP2274 is paired with 16-bit or higher ADCs at sampling rates above 100 kSPS. The 80 mA short-circuit output current is more than sufficient to recharge the ADC's sample-and-hold capacitor within one acquisition period.
Compliance Information
RoHS compliance confirmed by JLCPCB part listing (C95870). AEC-Q100 automotive qualification is not stated by 3PEAK for the TP2274 - for AEC-Q100-qualified equivalents, consult TI's TLC2274-Q1 family. Halogen-free status and conflict-mineral reporting not explicitly stated by 3PEAK; set to unknown pending datasheet confirmation.
