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Texas Instruments TLC277CPS
- Part No.:
- TLC277CPS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC277CPS.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,277
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Product details
Overview
TLC277CPS from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 500 µV max input offset voltage (25°C), 10.8 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing down to the negative rail. It operates from 3 V to 16 V over 0°C–70°C and delivers 4.5 MHz unity-gain bandwidth with 0.5 V/µs slew rate - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC277CPS datasheet, TLC277CPS pinout, TLC277CPS application, or TLC277CPS equivalent, this page provides verified package mapping (SOIC-8), confirmed electrical parameters per TI SLOS091F Rev F, real-world design implications of input bias current (<60 pA), and validated alternatives for precision dual op-amp replacement in low-power analog front-ends.
Technical Context
The TLC277CPS uses a polysilicon-gate CMOS process to achieve ultra-low input bias current (<60 pA typical) and stable input offset voltage drift (0.3 µV/°C from 25°C to 70°C), eliminating threshold voltage polarization effects common in metal-gate devices. Its input stage supports common-mode voltage down to –0.1 V (at VDD = 5 V), enabling true single-supply operation without level-shifting circuitry.
Internally, the device integrates ESD protection and latch-up immunity, with dual amplifiers sharing a single 1.12–3.2 mA supply current (VDD = 5 V). Output stage design ensures low-level output voltage ≤50 mV (IOL = 0) and high-level output ≥3.2 V (RL = 10 kΩ), maintaining >65 dB CMRR and >65 dB PSRR across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 500 µV max at 25°C - enables DC-coupled amplification of mV-level sensor signals without nulling circuitry |
| Input Bias Current | <60 pA typical - permits use of >1 MΩ feedback networks without significant error voltage |
| Supply Voltage Range | 3 V to 16 V - supports direct interface with 3.3 V/5 V logic rails and higher-voltage analog stages |
| Unity-Gain Bandwidth | 4.5 MHz - sufficient for anti-aliasing filters up to ~200 kHz and active filter designs |
| Slew Rate | 0.5 V/µs - limits full-power bandwidth to ~160 kHz but preserves fidelity for audio and sensor bandwidths |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - lower than bipolar op-amps above 50 kΩ source impedance |
| Common-Mode Input Range | –0.1 V to (VDD – 1 V) - allows ground-referenced inputs in single-supply configurations |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.27 mm pitch, plastic body with matte finish. RoHS-compliant, moisture sensitivity level (MSL) 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | High-impedance node accepting differential signal; requires guard ring if PCB leakage exceeds 1 pA |
| 2 | Non-Inverting Input (Amplifier A) | Accepts reference or sensor signal; common-mode range extends below ground for single-supply biasing |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; output swing reaches within 50 mV of negative rail |
| 4 | Negative Supply (V–) | Connected to ground in single-supply mode; must be decoupled with 0.1 µF ceramic capacitor |
| 5 | Non-Inverting Input (Amplifier B) | Independent input for second channel; same CMVR and bias specs as Pin 2 |
| 6 | Inverting Input (Amplifier B) | Matches Pin 1 performance; usable for differential pair or independent signal path |
| 7 | Output (Amplifier B) | Electrically isolated from Pin 3; shares VDD/V– rails but no internal crosstalk above –80 dB |
| 8 | Positive Supply (V+) | Accepts 3–16 V; total supply current ≤3.2 mA (two amps, VDD = 5 V, 25°C) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives within 50 mV of V– and within 0.05 V of V+ at RL = 10 kΩ - eliminates need for level-shifting in single-supply data acquisition |
| Ultra-low input bias current | <60 pA typical - enables high-Z sensor interfacing (e.g., piezoelectric, pH electrodes) without signal degradation |
| Low input offset voltage drift | 0.3 µV/°C - ensures <1.5 µV total drift over 0°C–70°C operating range, critical for precision DC amplification |
| Single-supply optimized architecture | Input common-mode range includes V– - allows direct connection of transducer outputs referenced to ground |
| ESD protection circuitry | Rated to >2 kV HBM - reduces field failure risk during handling and PCB assembly without external clamping |
Applications
| Medical Sensor Interface | Portable Data Logger |
|---|---|
Use Scenario: Amplifying low-amplitude bio-potential signals (ECG, EMG) from dry electrodes with minimal power consumption. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier front-end, providing gain and filtering before ADC sampling. Use Value: 500 µV max VIO and 10.8 nV/√Hz noise preserve microvolt-level signal integrity; 3 V operation extends battery life in wearable form factors. |
Use Scenario: Conditioning thermistor, RTD, and strain gauge outputs in handheld environmental monitors. IC Role / Device Role / Timing Role: Precision dual op-amp implementing ratiometric measurement and cold-junction compensation circuits. Use Value: Input bias current <60 pA prevents loading of high-resistance sensor elements; rail-to-rail output maximizes ADC dynamic range. |
| Industrial Process Controller | Automotive Cabin Sensor Hub |
Use Scenario: Signal conditioning for 4–20 mA loop receivers and analog sensor inputs in PLC I/O modules. IC Role / Device Role / Timing Role: Dual op-amp performing current-to-voltage conversion and buffer amplification prior to isolation. Use Value: 16 V max supply rating supports industrial 12–24 V rails; 65 dB CMRR rejects common-mode noise on long sensor cables. |
Use Scenario: Front-end amplification for cabin temperature, humidity, and CO₂ sensors in automotive HVAC control units. IC Role / Device Role / Timing Role: Dual-channel signal conditioner driving SAR ADC inputs in ASIL-B compliant subsystems. Use Value: Specified operation from 0°C to 70°C matches passenger compartment thermal envelope; latch-up immunity ensures robustness in noisy vehicle environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C drift, 1.8 V–5.5 V supply, 350 kHz GBW | Better DC accuracy but lower bandwidth; not suitable for >100 kHz signal paths | Select when ultra-low drift dominates over speed; verify layout compatibility with smaller SOIC-8 footprint |
| LMV722MMX/NOPB | CMOS input, 800 µV max VIO, 10 MHz GBW, 5.25 V max supply | Higher bandwidth but wider offset voltage; limited to 5 V systems | Choose for higher-speed sensor interfaces where 5 V rail is fixed and 800 µV VIO is acceptable |
Compared with TLC277CPS, OPA2333AIDR offers superior DC stability but sacrifices bandwidth and supply flexibility, while LMV722MMX/NOPB trades offset voltage for speed and voltage range - making TLC277CPS the optimal balance for 3–16 V, <5 MHz, sub-mV-precision dual-op-amp needs.
Availability
TLC277CPS is available at Aetrix Electronics and suitable for medical sensor interfaces, portable data loggers, industrial process controllers, and automotive cabin sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC277CPS 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, designing and manufacturing analog ICs, embedded processors, and digital signal solutions for industrial, automotive, and consumer markets.
The TLC27xx family was engineered to replace bipolar and BiFET op-amps in cost-sensitive, low-power precision applications - delivering CMOS input advantages (ultra-low IB, rail-to-rail output) without sacrificing speed or noise performance.
FAQ
What is the maximum operating temperature range for the TLC277CPS?
The TLC277CPS is rated for operation from 0°C to 70°C (C-suffix grade). Its absolute maximum junction temperature is 150°C, and storage temperature spans –65°C to 150°C. For extended-range applications, TI offers the TLC277I variant (–40°C to 85°C), but the TLC277CPS itself is strictly specified for commercial temperature operation.
Does the TLC277CPS support true rail-to-rail input operation?
No - the TLC277CPS supports rail-to-rail *output* swing (within 50 mV of V– and V+), but its input common-mode voltage range extends only to –0.1 V (below V–) and up to VDD – 1 V at 25°C. This allows ground-referenced inputs in single-supply use but does not include the positive rail at the inputs.
Can the TLC277CPS drive a 10 kΩ load while maintaining specified AC performance?
Yes - all key AC specifications (4.5 MHz unity-gain bandwidth, 0.5 V/µs slew rate, 10.8 nV/√Hz noise) are tested with RL = 10 kΩ and CL = 20 pF per TI SLOS091F Rev F. The output stage sustains full performance into 10 kΩ loads without gain peaking or phase margin degradation.
How does the input offset voltage of the TLC277CPS compare to the TLC272CPS?
The TLC277CPS has a maximum input offset voltage of 500 µV at 25°C, whereas the TLC272CPS is rated at 10 mV max. This 20× improvement makes the TLC277CPS suitable for precision DC amplification where the TLC272CPS would require external trimming or auto-zero circuitry.
Is the TLC277CPS pin-compatible with other devices in the TLC27xx family?
Yes - all TLC27xx dual op-amps (including TLC272, TLC272A, TLC272B, and TLC277) share identical SOIC-8 (D), PDIP-8 (P), SOP-8 (PS), and TSSOP-8 (PW) pinouts. The TLC277CPS can directly replace TLC272CPS in existing layouts without PCB modification, provided supply and signal constraints align with its tighter offset spec.
TLC277CPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 5.3V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.7 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 1.9mA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
TLC277CPS FAQ
1.How can I place an order for TLC277CPS through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC277CPS 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 TLC277CPS reliable?
The price and inventory of TLC277CPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC277CPS is usually 5 days.
3.What payment methods are accepted for TLC277CPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC277CPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC277CPS?
TLC277CPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC277CPS 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 TLC277CPS?
For technical support, including TLC277CPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC277CPS requirements.
6.How does Aetrix verify that TLC277CPS is sourced from the original manufacturer or authorized distributors?
All TLC277CPS 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 TLC277CPS meets industry standards.
7.What is the process for return or replacement of TLC277CPS?
All TLC277CPS units undergo pre-shipment inspection (PSI). If there is an issue with TLC277CPS, 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 TLC277CPS part is unused and in its original packaging.
Return procedure for TLC277CPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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