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Texas Instruments TLC2274AMD
- Part No.:
- TLC2274AMD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2274AMD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:599
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Product details
Overview
TLC2274AMD 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 2.25 MHz gain-bandwidth, 3.6 V/µs slew rate, 9 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and rail-to-rail output swing - enabling high-fidelity interfacing with ADCs in battery-powered sensor front-ends.
For engineers reviewing the TLC2274AMD datasheet, TLC2274AMD pinout, TLC2274AMD application, or TLC2274AMD equivalent, key selection considerations include its ±2.2 V to ±8 V supply range, 950 µV maximum input offset voltage (A-grade), 4.8 mA typical supply current at ±5 V, and compatibility with transducer interfaces requiring high input impedance and low DC error.
Technical Context
The TLC2274AMD uses Advanced LinCMOS process technology to achieve rail-to-rail output swing while maintaining low input bias current (1 pA typ) and low noise (9 nV/√Hz). Its input stage operates down to the negative rail, supporting true single-supply operation with common-mode input range extending to VDD−.
It features unity-gain stable compensation, 50° phase margin, and 10 dB gain margin under 10 kΩ//100 pF load conditions. The device is fully characterized across temperature for both 5 V single-supply and ±5 V split-supply operation, with guaranteed performance over –55°C to 125°C for military-grade applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports wide industrial and automotive supply rails without external regulation |
| Gain-Bandwidth Product | 2.25 MHz - enables stable closed-loop operation up to ~200 kHz with moderate gain (e.g., AV = 10) |
| Slew Rate | 3.6 V/µs - supports 0–2.3 V step response settling to 0.1% in 1.5 µs, suitable for medium-speed data acquisition |
| Input Offset Voltage (Max) | 950 µV at TA = 25°C - ensures ≤0.02% gain error in 10 V full-scale instrumentation amplifiers |
| Input Bias Current (Typ) | 1 pA - minimizes voltage error across >10 MΩ source impedances (e.g., piezoelectric sensors) |
| Input Voltage Noise | 9 nV/√Hz at 1 kHz - 2× lower than TLC27x predecessors, critical for low-level analog signal integrity |
| Common-Mode Input Range | Extends to VDD− - allows direct sensing of ground-referenced signals in single-supply configurations |
Pinout & Package
TL2274AMD is packaged in a 14-pin SOIC (D package) with nominal body size 3.91 mm × 8.65 mm. Pin functions are electrically identical across TLC2274 family variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of Channel 1 - rail-to-rail capable, drives 10 kΩ load to within 15 mV of rails |
| 2 | IN1− | Inverting input of Channel 1 - high-impedance CMOS node, supports biasing to VDD− |
| 3 | IN1+ | Non-inverting input of Channel 1 - same electrical characteristics as IN1−, used for differential or single-ended inputs |
| 4 | VDD−/GND | Negative supply or ground reference - must be connected; not NC |
| 5 | IN2+ | Non-inverting input of Channel 2 - independent channel, no crosstalk with Channel 1 above 60 dB |
| 6 | IN2− | Inverting input of Channel 2 - matched to IN1− in offset and bias current (ΔVIO < 300 µV) |
| 7 | OUT2 | Output of Channel 2 - fully buffered, capable of sourcing/sinking ±500 µA continuously |
| 8 | VDD+ | Positive supply - accepts up to +8 V; internal ESD protection rated to ±2000 V HBM |
| 9 | IN3+ | Non-inverting input of Channel 3 - identical specs to Channels 1–2; enables 3-channel signal processing |
| 10 | IN3− | Inverting input of Channel 3 - supports independent feedback networks per channel |
| 11 | VDD− | Negative supply - required for split-supply operation; tied to pin 4 in single-supply mode |
| 12 | IN4+ | Non-inverting input of Channel 4 - fourth independent op-amp channel, complete quad functionality |
| 13 | IN4− | Inverting input of Channel 4 - enables simultaneous conditioning of four sensor signals |
| 14 | OUT4 | Output of Channel 4 - rail-to-rail swing confirmed at ±5 V supply with 10 kΩ load |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 15 mV of VDD+ and VDD− at ±5 V, preserving full dynamic range for 12-bit+ ADC interfacing |
| Low input bias current (1 pA typ) | Enables use with high-impedance sources (e.g., pH electrodes, photodiode TIA feedback) without significant DC error |
| 9 nV/√Hz input voltage noise | Reduces integrated noise floor in 10 Hz–10 kHz band by >30% vs. TLC274, improving SNR in precision measurement |
| Specified for single- and split-supply | Operates from 4.4 V to 16 V single supply or ±2.2 V to ±8 V dual supply - simplifies power architecture reuse |
| Input common-mode range includes VDD− | Accepts input signals at ground potential in single-supply systems, eliminating level-shifting circuitry |
| A-grade max VIO = 950 µV | Guarantees low gain error in closed-loop configurations (e.g., 100× gain yields <10 mV offset at output) |
Applications
| Transducer Signal Conditioning | Battery-Powered Sensor Nodes |
|---|---|
|
Use Scenario: Amplifying low-level outputs from piezoelectric accelerometers or strain gauges with high source impedance (>1 MΩ). IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous instrumentation amp stages, filter sections, and ADC driver per channel. Use Value: 1 pA input bias current prevents signal attenuation; rail-to-rail output maximizes utilization of 3.3 V ADC reference. |
Use Scenario: Portable environmental monitors logging temperature, humidity, and gas concentration on coin-cell batteries. IC Role / Device Role / Timing Role: TLC2274AMD supplies all analog signal path functions: sensor buffering, anti-alias filtering, and reference scaling. Use Value: 4.8 mA total quiescent current at ±5 V enables >1-year operation; low noise preserves resolution in 16-bit sigma-delta ADCs. |
| Industrial Process Control I/O Modules | White Goods Motor Control Feedback |
|
Use Scenario: 4–20 mA loop receivers and isolated voltage outputs in PLC analog input/output cards. IC Role / Device Role / Timing Role: Configured as precision current-to-voltage converter, active filter, and output buffer in compact 14-pin footprint. Use Value: Guaranteed 950 µV max VIO ensures <±0.02% FSR error over temperature; ±8 V supply tolerance accommodates field wiring drops. |
Use Scenario: Closed-loop speed and current sensing in refrigerator compressor inverters and washing machine drum drives. IC Role / Device Role / Timing Role: Condition shunt resistor voltage, isolate motor phase currents, and drive gate driver bias references. Use Value: –55°C to 125°C operating range meets MIL-PRF-38535 Class M requirements; rail-to-rail output interfaces directly with 3.3 V MCU ADCs. |
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 |
|---|---|---|---|
| TLV2444IDR | Lower supply current (1.3 mA/ch), but higher input offset (2.5 mV max) and lower GBW (1.8 MHz) | Better suited for ultra-low-power, cost-sensitive consumer devices where DC precision is secondary | Choose TLV2444IDR when total supply current < 6 mA is mandatory and offset drift < 5 µV/°C is acceptable |
| OPA4340UA | Higher precision (125 µV max VIO), lower noise (8 nV/√Hz), but higher cost and only available in SOIC-14 or TSSOP-14 | Targeted at medical instrumentation and test equipment demanding sub-0.005% linearity | Choose OPA4340UA when system-level offset budget requires <200 µV total error and budget permits premium pricing |
Compared with TLV2444IDR, TLC2274AMD offers superior DC accuracy and noise performance at modest current penalty; versus OPA4340UA, it provides broader supply flexibility (±2.2 V to ±8 V) and military-grade temperature support at lower cost.
Availability
TLC2274AMD is available at Aetrix Electronics and suitable for industrial process control I/O modules, battery-powered sensor nodes, and white goods motor control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2274AMD 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 heritage in precision op-amps and industrial-grade signal chain solutions.
The TLC227x family was designed specifically for rail-to-rail output performance in low-noise, low-input-bias applications - bridging the gap between legacy TLC27x devices and modern precision amplifiers while maintaining pin compatibility and robustness.
FAQ
What is the maximum operating temperature range for the TLC2274AMD?
The TLC2274AMD is a military-grade (M-level) device qualified for operation from –55°C to +125°C. This extended range is explicitly specified in Section 6.3 of the datasheet and validated across all electrical parameters including input offset voltage, common-mode rejection ratio, and supply current - making it suitable for avionics, downhole tools, and under-hood automotive applications where ambient extremes exceed commercial or industrial limits.
Does the TLC2274AMD support true single-supply operation with input signals referenced to ground?
Yes. The TLC2274AMD's common-mode input voltage range includes the negative rail (VDD−), which - when configured for single-supply operation (e.g., VDD+ = 5 V, VDD− = GND) - allows inputs from 0 V to 3.5 V. This eliminates the need for input biasing resistors or level-shifting circuits when conditioning ground-referenced sensor outputs such as thermocouples or bridge transducers.
How does the TLC2274AMD differ from the standard TLC2274 in terms of precision specifications?
The "A" suffix in TLC2274AMD denotes the precision grade: maximum input offset voltage is tightened to 950 µV (vs. 2500 µV for standard TLC2274) at TA = 25°C, and long-term drift is specified at 0.002 µV/month. These tighter tolerances are verified across the full –55°C to +125°C range, ensuring consistent performance in mission-critical analog signal paths where calibration intervals are infrequent or impractical.
Can the TLC2274AMD drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes. At ±5 V supply and TA = 25°C, the TLC2274AMD guarantees high-level output voltage ≥4.85 V and low-level output voltage ≤–4.85 V into a 10 kΩ load - corresponding to swing within 150 mV of each rail. This is confirmed in Section 6.6 (VOM+ and VOM− specifications) and enables direct interfacing with 12-bit SAR or sigma-delta ADCs using 5 V or ±5 V references without external level translation.
Is the TLC2274AMD pin-compatible with other packages in the TLC2274 family?
Yes. The TLC2274AMD in SOIC-14 (D package) shares identical pinout and function mapping with all other TLC2274 variants - including TLC2274CDR (commercial), TLC2274IDR (industrial), and TLC2274QDR (automotive Q100). This allows drop-in replacement across temperature grades and qualification levels without PCB redesign, provided thermal and layout constraints (e.g., θJA = 83.8°C/W for SOIC-14) are met.
TLC2274AMD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLC2274AMD FAQ
1.How can I place an order for TLC2274AMD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2274AMD 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 TLC2274AMD reliable?
The price and inventory of TLC2274AMD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2274AMD is usually 5 days.
3.What payment methods are accepted for TLC2274AMD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2274AMD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2274AMD?
TLC2274AMD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2274AMD 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 TLC2274AMD?
For technical support, including TLC2274AMD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2274AMD requirements.
6.How does Aetrix verify that TLC2274AMD is sourced from the original manufacturer or authorized distributors?
All TLC2274AMD 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 TLC2274AMD meets industry standards.
7.What is the process for return or replacement of TLC2274AMD?
All TLC2274AMD units undergo pre-shipment inspection (PSI). If there is an issue with TLC2274AMD, 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 TLC2274AMD part is unused and in its original packaging.
Return procedure for TLC2274AMD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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