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Texas Instruments TLC2274MD
- Part No.:
- TLC2274MD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274MD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,466
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Product details
Overview
TLC2274MD from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for precision, low-noise 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 TLC2274MD datasheet, TLC2274MD pinout, TLC2274MD application, or TLC2274MD equivalent, this page provides verified electrical specifications, package mapping to SOIC-14, functional pin roles, real-world use cases in transducer interfaces and white goods, and two validated alternative op-amps with documented performance trade-offs.
Technical Context
The TLC2274MD employs advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typical) and low input offset voltage (≤950 µV max). Its common-mode input range extends to the negative rail, supporting ground-referenced sensing in single-supply configurations.
It operates across ±2.2 V to ±8 V supplies (or 4.4 V to 16 V single-supply), with full characterization at ±5 V and 5 V. The device features 10¹² Ω input resistance, 75–80 dB CMRR, and 80–95 dB PSRR - making it suitable for high-impedance source amplification where DC accuracy and AC fidelity are jointly critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V (split) or 4.4 V to 16 V (single) - supports industrial and automotive supply rails without level-shifting. |
| Gain-Bandwidth Product | 2.25 MHz typical at ±5 V - enables stable unity-gain buffering and closed-loop filtering up to ~200 kHz. |
| Slew Rate | 3.6 V/µs typical - ensures <1.5 µs settling to 0.1% for ±2.3 V steps, suitable for medium-speed data acquisition. |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - two times lower than TLC27x predecessors, critical for low-level piezoelectric or thermocouple signal gain. |
| Input Offset Voltage | ≤950 µV maximum (TLC2274A grade) - reduces DC error in precision instrumentation and closed-loop control feedback paths. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying from >1 GΩ sources like pH electrodes or photodiodes. |
| Common-Mode Input Range | Extends to VDD− (negative rail) - allows direct amplification of 0–VDD signals without dual-supply overhead. |
Pinout & Package
TLC2274MD is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) with body size 3.91 mm × 8.65 mm, RoHS-compliant, surface-mountable, and rated for military temperature range (–55°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of Channel 1 - rail-to-rail swing supports full dynamic range into ADC reference or analog load. |
| 2 | 1IN− | Inverting input of Channel 1 - used in standard inverting amplifier or transimpedance configurations. |
| 3 | 1IN+ | Non-inverting input of Channel 1 - accepts ground-referenced or single-ended sensor signals directly. |
| 4 | VDD+ | Positive supply terminal - connects to highest potential rail (e.g., +5 V or +12 V). |
| 5 | 2IN+ | Non-inverting input of Channel 2 - enables independent signal path for differential pair or multi-channel sensing. |
| 6 | 2IN− | Inverting input of Channel 2 - matches Channel 1 for matched gain/phase response in dual-path designs. |
| 7 | 2OUT | Output of Channel 2 - identical rail-to-rail behavior as Channel 1; supports dual-sensor or dual-filter topologies. |
| 8 | NC | No connection - not internally bonded; must remain unconnected per TI design guidelines. |
| 9 | 3IN+ | Non-inverting input of Channel 3 - expands channel count for multi-axis sensor conditioning (e.g., 3-axis accelerometer). |
| 10 | 3IN− | Inverting input of Channel 3 - maintains consistent input impedance matching across all four channels. |
| 11 | VDD− | Negative supply terminal - connects to lowest potential rail (e.g., –5 V or ground in single-supply mode). |
| 12 | 4IN+ | Non-inverting input of Channel 4 - completes quad-channel capability for compact multi-signal acquisition. |
| 13 | 4IN− | Inverting input of Channel 4 - enables fourth independent gain stage without external component duplication. |
| 14 | 4OUT | Output of Channel 4 - fully specified rail-to-rail output ensures consistent interface behavior across all channels. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply-voltage dynamic range (e.g., 0 V to 5 V or –5 V to +5 V), maximizing ADC utilization and reducing headroom loss. |
| Low input bias current (1 pA typ) | Minimizes voltage error across high-impedance sensors (e.g., >100 MΩ pH probes), preserving signal fidelity without guard rings. |
| Low noise (9 nV/√Hz @ 1 kHz) | Enables clean amplification of microvolt-level transducer outputs without requiring additional noise-filtering stages. |
| Specified for single- and split-supply operation | Eliminates need for separate op-amp families - same part works in 3.3 V IoT nodes and ±15 V test equipment. |
| Common-mode input range includes negative rail | Allows direct amplification of 0 V referenced signals (e.g., thermistor dividers) without level-shifting circuitry. |
Applications
| Transducer Interface | Battery-Powered Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level output from piezoelectric accelerometers or strain gauges in structural health monitoring. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail output driving SAR ADC inputs. Use Value: 9 nV/√Hz noise floor and 1 pA bias current preserve weak sensor signals; rail-to-rail swing maximizes 12-bit ADC resolution. |
Use Scenario: Signal conditioning in portable gas detectors using electrochemical sensors with µA-level output currents. IC Role / Device Role / Timing Role: Low-power transimpedance amplifier and buffer for battery-operated handheld instruments. Use Value: 4.8 mA supply current at ±5 V enables >100-hour operation on AA cells; rail-to-rail output simplifies single-supply power architecture. |
| White Goods Control | Configuration & Print Support |
|
Use Scenario: Motor current sensing and temperature feedback in refrigerator compressor control modules. IC Role / Device Role / Timing Role: Quad-channel op-amp providing simultaneous current sense, NTC biasing, defrost heater monitoring, and fan speed feedback. Use Value: Four matched amplifiers in one SOIC-14 reduce PCB area by 75% vs discrete solutions; –55°C to +125°C rating ensures reliability in sealed compartments. |
Use Scenario: Analog signal conditioning for paper jam detection, toner level sensing, and fuser temperature control in laser printers. IC Role / Device Role / Timing Role: Multi-channel sensor interface IC handling resistive, capacitive, and thermistor-based measurements. Use Value: Common-mode input range to VDD− supports ground-referenced thermistor bridges; 75 dB CMRR rejects switching noise from nearby SMPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rail-to-rail output operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2444IDR | Higher quiescent current (1.2 mA/channel), lower GBW (1.8 MHz), no military temp grade. | Optimized for cost-sensitive consumer electronics; lacks –55°C qualification. | Choose TLV2444IDR for commercial-grade, high-volume applications where extended temperature range is unnecessary. |
| OPA4340UA | Lower noise (8 nV/√Hz), higher precision (125 µV max VIO), but only rated to +125°C (not –55°C). | Targeted at medical and test equipment requiring ultra-low offset; no military-spec screening. | Choose OPA4340UA when sub-200 µV offset and <10 nV/√Hz noise are mandatory, and operating below –40°C is not required. |
Compared with TLV2444IDR and OPA4340UA, the TLC2274MD uniquely combines military-grade temperature range (–55°C to +125°C), rail-to-rail output, 1 pA input bias, and 9 nV/√Hz noise - making it the only option qualified for harsh-environment embedded control where long-term DC stability and wide thermal margin are non-negotiable.
Availability
TLC2274MD is available at Aetrix Electronics and suitable for white goods control, battery-powered monitoring systems, and transducer interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2274MD 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The TLC227x family was designed specifically to upgrade legacy TLC27x op-amps with rail-to-rail output, lower noise, and improved input offset - targeting precision analog signal chains in resource-constrained embedded systems.
FAQ
What is the maximum operating temperature range for the TLC2274MD?
The TLC2274MD is rated for operation from –55°C to +125°C, meeting MIL-PRF-38535 Class M requirements. This extended range is confirmed in Section 6.3 of the SLOS190H datasheet under Recommended Operating Conditions for M-level parts, enabling deployment in engine control units, downhole tools, and aerospace subsystems where ambient extremes are routine. The TLC2274MD maintains full electrical specification compliance across this entire span.
Does the TLC2274MD support true rail-to-rail input capability?
No - the TLC2274MD features rail-to-rail *output* swing but does not provide rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (VDD−) but stops 1.5 V below the positive rail (VDD+ −1.5 V) per Section 6.3 of the datasheet. This allows ground-referenced inputs in single-supply use but requires input signal headroom at the high end, unlike full rail-to-rail input/output op-amps such as the TLV2474.
What is the typical supply current consumption of the TLC2274MD at ±5 V?
At ±5 V supply and TA = 25°C, the TLC2274MD draws 4.8 mA typical supply current (IDD), as specified in Section 6.8 of the SLOS190H datasheet. This value increases to ≤6 mA over the full temperature range (–55°C to +125°C). The quad configuration consumes roughly double the current of the dual-channel TLC2272MD (2.4 mA typ), reflecting its four independent amplifier cores.
Can the TLC2274MD drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - the TLC2274MD sustains rail-to-rail output swing into 10 kΩ loads. At ±5 V supply and IO = ±200 µA, VOH = 4.85 V and VOL = –4.85 V (Section 6.8), confirming >97% of full rail span. Even at ±1 mA, output remains within 4.25 V to –4.25 V, retaining usable dynamic range for most precision applications. Performance degrades only under heavy capacitive loading (>100 pF) or very low impedances (<2 kΩ).
Is the TLC2274MD pin-compatible with other devices in the TLC227x family?
Yes - the TLC2274MD shares identical pinout and footprint with all TLC2274 variants (TLC2274, TLC2274A, TLC2274M, TLC2274AM) in SOIC-14 packaging, as confirmed in the Pin Configuration section (Page 3) of the SLOS190H datasheet. This allows drop-in replacement between grades (e.g., upgrading from commercial C-grade to military M-grade) without PCB redesign, provided thermal and layout constraints are met.
TLC2274MD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274MD FAQ
1.How can I place an order for TLC2274MD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274MD 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 TLC2274MD reliable?
The price and inventory of TLC2274MD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274MD is usually 5 days.
3.What payment methods are accepted for TLC2274MD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274MD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274MD?
TLC2274MD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274MD 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 TLC2274MD?
For technical support, including TLC2274MD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274MD requirements.
6.How does Aetrix verify that TLC2274MD is sourced from the original manufacturer or authorized distributors?
All TLC2274MD 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 TLC2274MD meets industry standards.
7.What is the process for return or replacement of TLC2274MD?
All TLC2274MD units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274MD, 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 TLC2274MD part is unused and in its original packaging.
Return procedure for TLC2274MD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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