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Texas Instruments TLC2274MN
- Part No.:
- TLC2274MN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC2274MN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,805
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Product details
Overview
TLC2274MN from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for precision signal conditioning in single- or split-supply systems. It delivers 2.2-MHz gain-bandwidth, 3.6-V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, ±5-V supply operation, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2274MN datasheet, TLC2274MN pinout, TLC2274MN application, or TLC2274MN equivalent, key selection criteria include its 1-pA typical input bias current, 950-µV maximum input offset voltage (A-grade), −55°C to +125°C M-grade temperature range, and compatibility with low-voltage, high-impedance transducer interfaces requiring minimal loading and wide dynamic range.
Technical Context
The TLC2274MN uses advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current and low noise. Its input stage operates with common-mode voltage extending to the negative rail, supporting true single-supply operation down to 4.4 V total supply.
It features fully specified AC performance across ±2.2 V to ±8 V supply ranges and supports stable unity-gain operation with 100-pF capacitive loads. The device exhibits 75-dB minimum CMRR and 80-dB minimum PSRR over full temperature range, ensuring robustness in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports dual-supply operation from ±2.2 V (4.4 V total) up to ±8 V; also functional on single 4.4–16-V supplies. |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz at gain = 10 without phase margin degradation. |
| Slew Rate | 3.6 V/µs - allows full-scale 4.6-VPP output swing at 20 kHz with <0.01% THD+N. |
| Input Offset Voltage | ≤950 µV max (TLC2274A variant) - ensures ≤0.02% error in 5-V full-scale precision amplification at 25°C. |
| Input Bias Current | 1 pA typical - minimizes voltage error across >1-MΩ source impedances (e.g., piezoelectric sensors). |
| Output Swing | Rail-to-rail - delivers ≥4.85 VPP into 200-µA load at ±5 V supplies, maximizing ADC utilization. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC27x predecessors, critical for low-level analog signal integrity. |
Pinout & Package
TLC2274MN is supplied in a 14-pin plastic DIP (PDIP) package measuring 6.35 mm × 19.30 mm, rated for −55°C to +125°C operation (M-grade). Pin 1 is top-left corner when notch faces up; pin count proceeds counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplified output of Channel 1; capable of sourcing/sinking ±50 mA, rail-to-rail swing. |
| 2 | IN−1 | Inverting input of Channel 1; high-impedance (1012 Ω), accepts signals down to VDD−. |
| 3 | IN+1 | Non-inverting input of Channel 1; same impedance and common-mode range as IN−1. |
| 4 | VDD−/GND | Negative supply terminal; used as ground in single-supply mode or −VDD in split-supply mode. |
| 5 | IN+2 | Non-inverting input of Channel 2; electrically isolated from other channels. |
| 6 | IN−2 | Inverting input of Channel 2; matched offset and bias characteristics to Channel 1. |
| 7 | OUT2 | Amplified output of Channel 2; independent output drive capability. |
| 8 | NC | No connection - internally unconnected; must remain floating per datasheet. |
| 9 | IN−3 | Inverting input of Channel 3; part of quad architecture with identical specs to Channels 1–2. |
| 10 | IN+3 | Non-inverting input of Channel 3; supports independent feedback networks per channel. |
| 11 | VDD− | Negative supply terminal - dedicated pin for split-supply configurations; tied to Pin 4 in single-supply use. |
| 12 | IN+4 | Non-inverting input of Channel 4; enables four independent signal paths on one IC. |
| 13 | IN−4 | Inverting input of Channel 4; maintains 1-pA bias current and rail-referenced common-mode range. |
| 14 | OUT4 | Amplified output of Channel 4; completes quad-channel functionality with full rail-to-rail swing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers ≥97% of total supply voltage as usable output range, maximizing dynamic range into 12-bit+ ADCs. |
| 1-pA typical input bias current | Enables accurate amplification of ultra-high-impedance sources (e.g., pH electrodes, piezoelectric sensors) without significant DC error. |
| Low 9 nV/√Hz input voltage noise | Reduces integrated noise floor in 10-Hz–10-kHz bandwidths by >30% vs. legacy TLC274, improving SNR in sensor signal chains. |
| Specified for −55°C to +125°C (M-grade) | Validated for aerospace, defense, and under-hood automotive applications where extended temperature reliability is mandatory. |
| Macromodel included | SPICE model provided by TI enables accurate transient and AC simulation prior to prototype build. |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
Use Scenario: Amplifying low-level mV outputs from strain gauges, thermopiles, or piezoelectric accelerometers in industrial test equipment. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail output driving SAR ADC reference buffers. Use Value: 1-pA input bias avoids loading high-Z sensors; 950-µV max VIO limits gain error to <0.02% at 5-V scale. | Use Scenario: Signal conditioning in portable gas detectors or handheld ECG monitors powered by two AA cells (3 V). IC Role / Device Role / Timing Role: Quad-channel low-power op-amp providing simultaneous sensor biasing, filtering, gain, and level-shifting functions. Use Value: 4.4-mA typical supply current per channel enables >1-year battery life; rail-to-rail output maximizes 3-V ADC resolution. |
| White Goods Control | Analog Front-End for Data Acquisition |
Use Scenario: Motor current sensing and temperature compensation in refrigerator compressor control modules operating at −40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability quad op-amp performing current shunt amplification, NTC linearization, and fan speed regulation feedback. Use Value: M-grade qualification ensures operation at −55°C; 75-dB CMRR rejects PWM noise from adjacent motor drivers. | Use Scenario: Multi-channel analog signal conditioning before multiplexed ADC in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Four independent precision amplifiers handling 4–20 mA loop receivers, RTD excitation, thermocouple cold-junction compensation, and voltage scaling. Use Value: Matched channel specs reduce calibration overhead; 2.25-MHz GBW supports anti-alias filtering up to 200 kHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2274CDR | SOIC-14, C-grade (0°C to 70°C), same electrical specs but commercial temp range and RoHS-compliant packaging. | Not qualified for extended temperature or military/aerospace use; suitable for consumer or lab equipment. | Select when cost sensitivity outweighs extended temperature or reliability requirements. |
| TLV2434IDR | Lower supply current (1.3 mA/ch), wider supply range (2.7–6 V), but reduced GBW (1.8 MHz) and higher VIO (2.5 mV max). | Better suited for ultra-low-power battery applications where bandwidth <200 kHz is acceptable. | Choose for sub-1-µA sleep modes or 3-V-only systems where TLC2274MN's ±5-V capability is unnecessary. |
Compared with TLC2274CDR and TLV2434IDR, the TLC2274MN provides guaranteed −55°C to +125°C operation, superior noise performance (9 vs. 18 nV/√Hz), and higher output drive - making it the only option qualified for harsh-environment, high-precision analog signal chains requiring long-term stability.
Availability
TLC2274MN is available at Aetrix Electronics and suitable for industrial control systems, aerospace sensor modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLC2274MN 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, embedded processing, and digital signal technologies with over 90 years of innovation in high-reliability components.
The TLC227x family was designed specifically for precision analog signal conditioning in demanding environments - delivering rail-to-rail output, ultra-low input bias current, and extended temperature operation unmatched by earlier CMOS op-amps like the TLC27x series.
FAQ
What is the maximum supply voltage for the TLC2274MN?
The TLC2274MN supports a maximum supply voltage of ±8 V (16 V total), with absolute maximum ratings specifying ±8 V on VDD+ and VDD− pins. Operation beyond this risks permanent damage. Recommended operating range is ±2.2 V to ±8 V, and the device remains functional down to ±2.2 V (4.4 V total) while maintaining rail-to-rail output swing and specified AC performance.
Does the TLC2274MN support single-supply operation?
Yes, the TLC2274MN supports true single-supply operation from 4.4 V to 16 V. Its input common-mode range extends to the negative rail (VDD−/GND), and its rail-to-rail output swings within 15 mV of both supply rails. When used with a single 5-V supply, Pin 4 (VDD−/GND) serves as system ground, and Pin 11 (VDD−) is tied to it - enabling seamless integration into 3.3-V or 5-V microcontroller-based systems.
What is the input offset voltage specification for the TLC2274MN?
The TLC2274MN is an M-grade variant of the TLC2274A family, with a maximum input offset voltage of 950 µV at TA = 25°C and 1500 µV across the full −55°C to +125°C temperature range. This specification applies to all four channels and is guaranteed by TI's production testing - critical for precision DC amplification where offset-induced errors must remain below 0.02% of full-scale output.
Can the TLC2274MN drive capacitive loads?
Yes, the TLC2274MN is characterized for stable operation with up to 100 pF capacitive loads at unity gain, as confirmed by phase margin (≥50°) and gain margin (≥10 dB) data in the datasheet. For loads exceeding 100 pF, external isolation resistance (e.g., 100 Ω in series with the output) is recommended to maintain stability - particularly important in ADC driver or filter applications where stray capacitance may accumulate.
Is the TLC2274MN pin-compatible with other TLC2274 variants?
Yes, the TLC2274MN shares identical pinout and footprint with all TLC2274 family members in the 14-pin PDIP package (e.g., TLC2274CN, TLC2274IN). Electrical specifications differ by grade (C/I/Q/M), but mechanical compatibility is maintained across temperature grades and suffixes - allowing direct substitution in existing PCB layouts when upgrading from commercial to military-temperature operation.
TLC2274MN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.25 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 4.8mA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLC2274MN FAQ
1.How can I place an order for TLC2274MN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274MN 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 TLC2274MN reliable?
The price and inventory of TLC2274MN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274MN is usually 5 days.
3.What payment methods are accepted for TLC2274MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274MN?
TLC2274MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274MN 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 TLC2274MN?
For technical support, including TLC2274MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274MN requirements.
6.How does Aetrix verify that TLC2274MN is sourced from the original manufacturer or authorized distributors?
All TLC2274MN 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 TLC2274MN meets industry standards.
7.What is the process for return or replacement of TLC2274MN?
All TLC2274MN units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274MN, 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 TLC2274MN part is unused and in its original packaging.
Return procedure for TLC2274MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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