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Texas Instruments TLC274CDBG4
- Part No.:
- TLC274CDBG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
TLC274CDBG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,984
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Product details
Overview
TLC274CDBG4 from Texas Instruments is a precision quad CMOS operational amplifier optimized for single-supply operation, featuring 10 mV max input offset voltage (C-grade), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to GND. It operates from 3 V to 16 V over 0°C to 70°C and supports low-power sensor signal conditioning in battery-powered instrumentation.
For engineers reviewing the TLC274CDBG4 datasheet, TLC274CDBG4 pinout, TLC274CDBG4 application, or TLC274CDBG4 equivalent, key selection criteria include its guaranteed C-suffix grade offset voltage, extended common-mode range below negative rail, high input impedance (>10¹² Ω), and compatibility with 14-pin SSOP packaging for space-constrained analog front-ends.
Technical Context
The TLC274CDBG4 uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (10–60 pA typ), low offset drift (0.3 µV/°C), and latch-up immunity. Its input stage enables true single-supply operation with common-mode voltage extending below GND and output swing reaching GND under load.
It delivers 4.5 MHz unity-gain bandwidth, 0.5 V/µs slew rate, and >65 dB CMRR across temperature - characteristics validated for C-suffix devices at 25°C and full 0°C–70°C range per TI SLOS092E Rev. JANUARY 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 10 mV max (C-grade, 25°C); ensures ≤±5 mV error in 1× gain configurations at room temperature |
| Input Voltage Noise | 10.8 nV/√Hz @ 1 kHz; enables high-fidelity amplification of microvolt-level sensor signals |
| Supply Voltage Range | 3 V to 16 V (0°C–70°C); supports direct interface with 3.3 V and 5 V logic rails without level shifting |
| Common-Mode Input Range | Extends to –0.1 V below GND (25°C); allows ground-referenced inputs in single-supply systems |
| Output Voltage Swing | 0 V to VDD–1.05 V (RL = 10 kΩ); delivers full dynamic range down to GND for ADC driver applications |
| Unity-Gain Bandwidth | 4.5 MHz (25°C); sufficient for anti-aliasing filters and active RC stages up to ~200 kHz closed-loop |
| Input Impedance | >10¹² Ω typical; minimizes loading on high-Z sources like piezoelectric sensors and pH electrodes |
Pinout & Package
Package: SSOP-14 (DB), 6.2 mm × 7.8 mm body, 0.65 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output | Amplifier channel 1 output; capable of sourcing/sinking ±30 mA |
| 1IN– | Input | Inverting input for channel 1; high-impedance node requiring guard ring in sensitive layouts |
| 1IN+ | Input | Noninverting input for channel 1; accepts common-mode voltages down to –0.1 V |
| VDD | Power | Positive supply rail (3–16 V); must be bypassed with ≥0.1 µF ceramic capacitor near pin |
| 2IN+ | Input | Noninverting input for channel 2; electrically identical to 1IN+ and 3IN+ |
| 2IN– | Input | Inverting input for channel 2; shares same bias current and noise specs as other inputs |
| 2OUT | Output | Amplifier channel 2 output; independent of other channels; no crosstalk specified |
| 3OUT | Output | Amplifier channel 3 output; usable as independent buffer or comparator hysteresis generator |
| 3IN– | Input | Inverting input for channel 3; supports same common-mode and noise performance as 1IN– |
| 3IN+ | Input | Noninverting input for channel 3; compatible with resistor-divider reference networks |
| GND | Power | Negative supply / system ground; return path for all four amplifiers' quiescent current |
| 4IN+ | Input | Noninverting input for channel 4; enables simultaneous multi-channel signal processing |
| 4IN– | Input | Inverting input for channel 4; matched to other inputs for consistent offset and drift behavior |
| 4OUT | Output | Amplifier channel 4 output; fully specified for VOL ≤ 50 mV and VOH ≥ 3.2 V @ 5 V supply |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimization | Input common-mode range includes GND and extends below it; output swings to GND - eliminates need for dual supplies in portable systems |
| Ultra-low input bias current | 10–60 pA typical (25°C); enables use with MΩ-range feedback and source impedances without significant DC error |
| Low-noise precision architecture | 10.8 nV/√Hz input voltage noise + <0.3 µV/°C offset drift - suitable for 16-bit+ data acquisition front-ends |
| Latch-up immunity | Designed-in protection against destructive latch-up during overvoltage transients - improves field reliability in industrial environments |
| ESD protection circuitry | Integrated protection per JEDEC JS-001 (HBM ≥2 kV); reduces risk of damage during PCB handling and assembly |
Applications
| Medical Sensor Signal Conditioning | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying low-amplitude bio-potential signals (ECG, EEG) from dry electrodes with minimal power consumption. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous instrumentation amp gain stage, high-pass filter, low-pass filter, and reference buffer. Use Value: Rail-to-rail output and sub-10 mV offset enable accurate digitization of µV-level signals using 3.3 V ADCs without external level-shifting. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters measuring pressure, flow, or temperature. IC Role / Device Role / Timing Role: Configured as voltage-to-current converter, sensor excitation buffer, linearization amplifier, and fault-detection comparator. Use Value: 3 V minimum supply and low quiescent current (≤6.4 mA total) extend battery life in wireless field instruments. |
| Portable Test Equipment | Automotive Cabin Sensors |
Use Scenario: Front-end amplification and filtering in handheld multimeters and oscilloscope probes. IC Role / Device Role / Timing Role: Provides programmable gain, AC coupling, offset nulling, and output drive for LCD driver ICs. Use Value: High input impedance (>10¹² Ω) prevents loading of passive probe dividers; 4.5 MHz bandwidth supports 200 kHz measurement bandwidth. |
Use Scenario: Signal conditioning for cabin air quality (CO₂, VOC) and occupancy (PIR) sensors in automotive infotainment modules. IC Role / Device Role / Timing Role: Amplifies weak sensor outputs, rejects EMI via differential configuration, buffers reference voltages, and drives SAR ADC inputs. Use Value: Guaranteed 0°C–70°C operation and ESD-hardened inputs ensure robustness in thermally variable vehicle cabins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC274CDR | Same electrical specs, SOIC-14 package (8.65 mm × 6 mm), tape-and-reel only; no SSOP footprint compatibility | Preferred for through-hole prototyping or legacy board designs with SOIC footprints | Select when board layout uses SOIC-14 and volume procurement requires reel delivery |
| TLV2464IDR | Rail-to-rail input/output, lower offset (1.6 mV max), higher supply current (1.3 mA per amp), 6.4 MHz GBW | Better for low-voltage (2.7 V) and high-accuracy (<1 mV error) applications where power budget allows | Choose when upgrading accuracy or enabling 2.7 V operation is critical; verify layout change for different pinout |
Compared with TLC274CDBG4, TLC274CDR offers identical performance in a larger SOIC package ideal for manual assembly, while TLV2464IDR trades higher quiescent current for improved offset and rail-to-rail I/O - making it suitable for next-generation low-voltage precision systems requiring tighter DC specs.
Availability
TLC274CDBG4 is available at Aetrix Electronics and suitable for medical sensor signal conditioning, industrial process monitoring, and portable test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TLC274CDBG4 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, specializing in analog and embedded processing technologies with over 90 years of innovation in precision analog design.
The TLC27xx family was developed to deliver BiFET-equivalent precision and speed in cost-effective CMOS technology, targeting upgrade paths for legacy instrumentation and new low-power, single-supply analog systems.
FAQ
What is the maximum operating temperature range for the TLC274CDBG4?
The TLC274CDBG4 is rated for operation from 0°C to 70°C (C-suffix grade). This range is explicitly defined in Section 4.2 of the TI SLOS092E datasheet and applies to all electrical specifications unless otherwise noted. Operation outside this range may result in parametric degradation or noncompliance with guaranteed limits.
Does the TLC274CDBG4 support true rail-to-rail input?
No - the TLC274CDBG4 supports rail-to-rail *output* swing (down to GND and up to VDD–1.05 V), but its input common-mode range extends only to –0.1 V below GND and up to VDD–1 V at 25°C. It does not accept inputs at the positive rail, distinguishing it from modern rail-to-rail input op-amps.
Can unused amplifiers in the TLC274CDBG4 be left floating?
No. Per Section 6.1.2 of the TI datasheet, unused amplifiers must be configured as grounded unity-gain followers (noninverting input tied to GND, output connected to inverting input) to prevent oscillation, increased supply current, or unpredictable output states that could affect adjacent channels.
What is the typical input bias current of the TLC274CDBG4 at 70°C?
The typical input bias current of the TLC274CDBG4 is 40–600 pA at 70°C, as specified in Table 4.3 (VDD = 5 V) and Table 4.4 (VDD = 10 V) of the SLOS092E datasheet. This wide range reflects unit-to-unit variation; design margins should assume ≤600 pA for worst-case error analysis.
Is the TLC274CDBG4 pin-compatible with the TLC274CDR?
No - the TLC274CDBG4 uses a 14-pin SSOP (DB) package with 0.65 mm pitch and 6.2 mm × 7.8 mm body, while the TLC274CDR uses a 14-pin SOIC (D) package with 1.27 mm pitch and 8.65 mm × 6 mm body. Their footprints, solder patterns, and thermal characteristics are incompatible without PCB redesign.
TLC274CDBG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 3.6V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 2.7mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
TLC274CDBG4 FAQ
1.How can I place an order for TLC274CDBG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC274CDBG4 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 TLC274CDBG4 reliable?
The price and inventory of TLC274CDBG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC274CDBG4 is usually 5 days.
3.What payment methods are accepted for TLC274CDBG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC274CDBG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC274CDBG4?
TLC274CDBG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC274CDBG4 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 TLC274CDBG4?
For technical support, including TLC274CDBG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC274CDBG4 requirements.
6.How does Aetrix verify that TLC274CDBG4 is sourced from the original manufacturer or authorized distributors?
All TLC274CDBG4 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 TLC274CDBG4 meets industry standards.
7.What is the process for return or replacement of TLC274CDBG4?
All TLC274CDBG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC274CDBG4, 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 TLC274CDBG4 part is unused and in its original packaging.
Return procedure for TLC274CDBG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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