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Texas Instruments MCP6294IPWR
- Part No.:
- MCP6294IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MCP6294IPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,824
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Product details
Overview
MCP6294IPWR from Texas Instruments is a quad-channel, rail-to-rail input/output operational amplifier optimized for low-power, precision signal conditioning in space-constrained 2.4–5.5 V systems. It delivers 10-MHz gain bandwidth, 600 µA per amplifier quiescent current, and 8.7 nV/√Hz input voltage noise at 10 kHz - enabling high-fidelity sensor amplification and ADC driving in battery-powered industrial and automotive modules.
For engineers reviewing the MCP6294IPWR datasheet, MCP6294IPWR pinout, MCP6294IPWR application, or MCP6294IPWR equivalent, key selection criteria include its extended –40°C to 125°C operating range, resistive open-loop output impedance for stable capacitive loading, and integrated RFI/EMI filtering - critical for EMI-prone motor control, smoke detection, and HVAC sensor front-ends.
Technical Context
The MCP6294IPWR implements a complementary differential input stage (N- and P-channel pairs) enabling true rail-to-rail common-mode input range - extending 100 mV beyond both supply rails across 2.4–5.5 V operation. Its class AB output stage achieves 15-mV rail-to-rail swing into 10-kΩ loads while maintaining unity-gain stability.
It features a resistive open-loop output impedance (~100 Ω at 10 MHz), reducing phase shift with capacitive loads and improving small-signal overshoot performance up to 300 pF. The device includes integrated RF/EMI rejection filtering and exhibits no phase reversal under overdrive conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 10 MHz typical - supports stable unity-gain and moderate-gain configurations up to ~100 kHz with full phase margin. |
| Supply Voltage Range | 2.4 V to 5.5 V - compatible with single-cell Li-ion, 3.3 V logic, and 5 V legacy systems without level shifting. |
| Input Offset Voltage | ±0.3 mV (typ), ±5 mV (max over –40°C to 125°C) - enables accurate DC-coupled amplification of mV-level sensor signals. |
| Quiescent Current | 600 µA per amplifier (typ) - allows four independent channels in ultra-low-power applications like portable medical devices. |
| Input Voltage Noise | 8.7 nV/√Hz at 10 kHz - suitable for photodiode and thermopile amplification where mid-band noise dominates SNR. |
| Open-Loop Output Impedance | ~100 Ω at 10 MHz - provides predictable frequency response with capacitive loads and simplifies compensation design. |
| ESD Rating | ±4 kV HBM - enhances robustness during board assembly and field operation in industrial environments. |
Pinout & Package
TSSOP-14 (PW) package: 4.40 mm × 5.00 mm body, 0.65 mm lead pitch, surface-mount, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; rail-to-rail swing capability supports direct ADC interface. |
| 2 | –IN A | Inverting input, channel A - used in transimpedance, difference, or inverting gain configurations; low 1-pA bias current preserves high-Z source integrity. |
| 3 | +IN A | Noninverting input, channel A - accepts high-impedance sensor outputs (e.g., thermocouples, pH electrodes) without loading error. |
| 4 | V+ | Positive supply rail - must be decoupled locally; supports 2.4–5.5 V operation including single-supply 3.3 V and 5 V systems. |
| 5 | +IN B | Noninverting input, channel B - electrically isolated from other channels; enables independent signal paths on same die. |
| 6 | –IN B | Inverting input, channel B - paired with Pin 5 for dual-channel instrumentation or filter stages. |
| 7 | OUT B | Amplifier B output - identical performance to Pin 1; supports multi-channel analog front-end consolidation. |
| 8 | OUT C | Amplifier C output - enables three independent gain/conditioning paths; useful for multi-sensor systems (e.g., 3-axis IMU). |
| 9 | –IN C | Inverting input, channel C - maintains <2 pF input capacitance for stability in high-frequency feedback networks. |
| 10 | +IN C | Noninverting input, channel C - shares same rail-to-rail input range as all channels; supports common-mode rejection up to 103 dB. |
| 11 | V– | Negative supply or ground - referenced for all inputs/outputs; supports true single-supply operation down to 2.4 V. |
| 12 | +IN D | Noninverting input, channel D - completes quad-channel set; enables simultaneous processing of four analog signals (e.g., multi-channel data acquisition). |
| 13 | –IN D | Inverting input, channel D - matched to other inputs for consistent offset and drift behavior across all four amplifiers. |
| 14 | OUT D | Amplifier D output - fully specified for 10-MHz GBW and 6.5 V/µs slew rate; supports fast-settling applications like barcode scanner front-ends. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in low-voltage (2.4 V) single-supply systems - output swings within 15 mV of rails into 10-kΩ loads. |
| Resistive open-loop output impedance | ~100 Ω at 10 MHz - eliminates peaking and improves phase margin with capacitive loads up to 300 pF, easing layout in motor control PCBs. |
| Integrated RFI/EMI rejection filter | Rejects high-frequency interference (e.g., switching regulator noise) without external RC filters - verified by EMIRR+ > 80 dB at 100 MHz. |
| No phase reversal under overdrive | Prevents latch-up or erroneous output states when inputs exceed supply rails - critical for fault-tolerant smoke detector analog front-ends. |
| Low input bias current (1 pA) | Preserves signal integrity from high-impedance sources (e.g., pH sensors, piezoelectric transducers) without requiring guard traces or active guarding. |
Applications
| Smoke Detector Signal Conditioning | HVAC Temperature Sensor Interface |
|---|---|
|
Use Scenario: Amplifying weak ionization chamber current (pA–nA range) in residential/commercial smoke alarms. IC Role / Device Role / Timing Role: Transimpedance amplifier converting current to voltage with low-noise, high-impedance input and rail-to-rail output swing. Use Value: 1-pA input bias current prevents signal loss; 8.7-nV/√Hz noise ensures reliable detection of sub-100-pA smoke-induced currents. |
Use Scenario: Conditioning RTD or thermistor bridge outputs in heating/cooling control units. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with matched quad channels for multi-zone sensing. Use Value: ±0.3-mV offset and ±1.1-µV/°C drift enable <0.1°C measurement accuracy over –40°C to 125°C ambient range. |
| Automotive Infotainment Audio Receiver | Portable Medical Instrumentation |
|
Use Scenario: Low-noise preamplification of microphone or antenna signals in vehicle head units. IC Role / Device Role / Timing Role: Single-supply audio op-amp with EMI filtering for AM/FM tuner IF stages and mic biasing. Use Value: Integrated RFI filter suppresses GSM/Bluetooth interference; 10-MHz GBW supports wideband audio capture up to 20 kHz. |
Use Scenario: Biopotential signal amplification (ECG, EEG) in handheld diagnostic devices. IC Role / Device Role / Timing Role: Quad-channel front-end for simultaneous lead acquisition, reference buffering, and anti-alias filtering. Use Value: Four matched amplifiers reduce component count and inter-channel mismatch; 4-kV HBM ESD rating withstands clinical handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6244T-E/ST | Same quad rail-to-rail architecture but rated only to 85°C ambient; lower ESD (2-kV HBM); no integrated EMI filter. | Suitable for commercial-grade consumer electronics, not automotive or industrial temperature extremes. | Select when cost sensitivity outweighs extended temperature or EMI robustness requirements. |
| TLV9064IPWR | Higher 18-MHz GBW and 10-V/µs slew rate; 500-µA IQ; no integrated EMI filter; 2-kV HBM ESD rating. | Better for high-speed multiplexed data acquisition; less suited for noisy motor-control or HVAC environments. | Choose when bandwidth and speed dominate over EMI immunity and extended temperature compliance. |
Compared with MCP6244T-E/ST, MCP6294IPWR adds 40°C higher max operating temperature and integrated EMI filtering; versus TLV9064IPWR, it trades 8-MHz bandwidth for superior noise immunity and thermal ruggedness - making it optimal for harsh-environment sensor signal chains.
Availability
MCP6294IPWR is available at Aetrix Electronics and suitable for HVAC control systems, automotive infotainment modules, and portable medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MCP6294IPWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision op-amps and industrial-grade signal conditioning ICs.
The MCP629x family was designed specifically for cost-sensitive, low-power general-purpose amplification in industrial, automotive, and medical applications demanding rail-to-rail performance, EMI resilience, and extended temperature operation.
FAQ
What is the maximum capacitive load the MCP6294IPWR can drive while maintaining stability?
The MCP6294IPWR maintains stable operation with capacitive loads up to 300 pF due to its resistive open-loop output impedance (~100 Ω). This eliminates the need for isolation resistors in many sensor interface and ADC driver applications - unlike conventional op-amps that require external compensation for loads >100 pF. The MCP6294IPWR's small-signal overshoot remains below 10% across this range, as verified in Figure C025 of the SBOS879D datasheet.
Does the MCP6294IPWR support true single-supply operation with rail-to-rail input?
Yes, the MCP6294IPWR supports true single-supply operation from 2.4 V to 5.5 V with rail-to-rail input - its common-mode input range extends 100 mV beyond both V– and V+, enabling direct connection to ground-referenced sensors and microcontroller ADC references. This is achieved via a complementary N/P-channel input stage, documented in Section 8.3.1 of the SBOS879D datasheet.
How does the MCP6294IPWR handle overdrive conditions without phase reversal?
The MCP6294IPWR uses internal clamping and topology design to prevent phase reversal when inputs exceed the supply rails - a known failure mode in some older op-amps. This behavior is confirmed in Figure C022 (No Phase Reversal) of the SBOS879D datasheet and is critical for smoke detector and motor control applications where transient overvoltage events occur regularly.
What is the overload recovery time specification for the MCP6294IPWR?
The MCP6294IPWR recovers from output saturation in 200 ns (typical), as stated in Section 8.3.3 and verified in Figure C023 (Overload Recovery) of the SBOS879D datasheet. This fast recovery minimizes propagation delay in closed-loop systems such as current-sense amplifiers in low-side motor control, where rapid fault response is essential.
Is the MCP6294IPWR pin-compatible with other devices in the MCP629x family?
No - the MCP6294IPWR (TSSOP-14) is not pin-compatible with the MCP6291 (SOT-23-5) or MCP6292 (SOIC-8/VSSOP-8). Each variant has distinct pin counts and layouts. However, all MCP629x devices share identical electrical specifications, AC/DC performance, and functional behavior - enabling schematic reuse with only package and layout adjustments required for the MCP6294IPWR.
MCP6294IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 6.5V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 600µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 2.4 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MCP6294IPWR FAQ
1.How can I place an order for MCP6294IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP6294IPWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP6294IPWR reliable?
The price and inventory of MCP6294IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP6294IPWR is usually 5 days.
3.What payment methods are accepted for MCP6294IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP6294IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP6294IPWR?
MCP6294IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP6294IPWR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP6294IPWR?
For technical support, including MCP6294IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP6294IPWR requirements.
6.How does Aetrix verify that MCP6294IPWR is sourced from the original manufacturer or authorized distributors?
All MCP6294IPWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP6294IPWR meets industry standards.
7.What is the process for return or replacement of MCP6294IPWR?
All MCP6294IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MCP6294IPWR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP6294IPWR part is unused and in its original packaging.
Return procedure for MCP6294IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP6294IPWR Tags
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