My Inquiry
My Account
Texas Instruments TLC27L2ACP
- Part No.:
- TLC27L2ACP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L2ACP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:257
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLC27L2ACP from Texas Instruments is a precision dual CMOS operational amplifier in PDIP-8 package, featuring 10 mV max input offset voltage (25°C), ultra-low 34 µA typical supply current (VDD = 5 V), and rail-to-rail output swing down to the negative rail - enabling accurate signal conditioning in low-power sensor interfaces and battery-powered field transmitters.
For engineers reviewing the TLC27L2ACP datasheet, TLC27L2ACP pinout, TLC27L2ACP application, or TLC27L2ACP equivalent, key selection criteria include its LinCMOS™ input stage (10¹² Ω input impedance, <60 pA bias current), single-supply operation (3–16 V), −0.2 V to 3.5 V common-mode input range at 5 V, and guaranteed performance across 0°C to 70°C.
Technical Context
The TLC27L2ACP uses silicon-gate LinCMOS™ technology to achieve exceptional DC precision and stability - including 0.1 µV/month input offset drift and 1.1 µV/°C temperature coefficient - while maintaining ultra-low power consumption. Its architecture supports single-supply operation with inputs extending below ground and outputs swinging to the negative rail.
It delivers 85 kHz unity-gain bandwidth and 0.03 V/µs slew rate at 5 V, optimized for low-frequency precision applications such as transmitter front-ends and analog sensor buffering where gain accuracy, noise (68 nV/√Hz), and long-term offset stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 10 mV at 25°C - sets worst-case DC error in high-gain sensor amplifiers without trimming |
| Supply Current (typ) | 34 µA at VDD = 5 V - enables multi-year operation on coin-cell batteries in remote sensors |
| Input Impedance | 10¹² Ω - prevents loading of high-impedance sources like piezoelectric or pH electrodes |
| Common-Mode Input Range | −0.2 V to 3.5 V at VDD = 5 V - allows direct interfacing to grounded-sensor outputs |
| Output Voltage Swing | Within 50 mV of negative rail - preserves dynamic range in single-supply systems |
| Unity-Gain Bandwidth | 85 kHz - sufficient for 50/60 Hz filtering, thermocouple amplification, and slow-process control loops |
| Input Bias Current (max) | 60 pA at 70°C - ensures minimal offset error in high-resistance feedback networks |
Pinout & Package
Package: 8-pin PDIP (Plastic Dual In-line Package), 0.3 inch width, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, channel 1 | High-impedance node for reference or sensor signal injection; accepts voltages down to −0.2 V |
| 1IN− | Inverting input, channel 1 | Feedback or signal inversion point; matched to 1IN+ for common-mode rejection |
| 1OUT | Output, channel 1 | Capable of sourcing/sinking ±30 mA; swings within 50 mV of GND and 0.9 V of VDD |
| GND | Ground / negative supply | Reference for both power and signal; common return for dual-channel operation |
| 2IN+ | Noninverting input, channel 2 | Independent high-Z input for second sensor or signal path; same specs as 1IN+ |
| 2IN− | Inverting input, channel 2 | Independent feedback node; electrically isolated from channel 1 except via shared supply rails |
| VDD | Positive supply | Accepts 3–16 V; powers both amplifiers; internal ESD protection rated to 2000 V |
| NC | No connect | Not internally bonded; must remain unconnected per TI design |
Key Features
| Feature | Design Value |
|---|---|
| LinCMOS™ input stage | Enables 10¹² Ω input impedance and sub-60 pA bias current - critical for microamp-level sensor signal integrity |
| Ultra-low power operation | 34 µA supply current at 5 V supports >10-year battery life in wireless sensor nodes |
| Rail-to-rail output (negative side) | Output reaches within 50 mV of GND - maximizes usable dynamic range in 0–5 V systems |
| Single-supply compatible input range | Inputs operate down to −0.2 V - eliminates need for level-shifting circuitry with grounded sensors |
| ESD protection (2000 V) | MIL-STD-883C compliant protection prevents functional failure during board handling and field deployment |
Applications
| Smoke and Heat Detector | Pressure Transmitter |
|---|---|
Use Scenario: Amplifying low-level ionization chamber or thermistor signals in residential fire alarm units. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with stable offset for analog smoke concentration measurement. Use Value: 10 mV max VIO and 0.1 µV/month drift ensure calibration remains valid over 10-year product lifetime without recalibration. | Use Scenario: Conditioning bridge output from MEMS pressure sensors in industrial process control systems. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier front-end with high input Z and rail-referenced output. Use Value: 10¹² Ω input impedance prevents bridge imbalance errors; 34 µA IDD enables loop-powered 4–20 mA transmitter designs. |
| Temperature Transmitter | Motion Detector |
Use Scenario: Linearizing and amplifying RTD or thermocouple outputs in HVAC and building automation. IC Role / Device Role / Timing Role: Cold-junction compensation and gain-setting amplifier operating from 3.3 V or 5 V supply. Use Value: −0.2 V to 3.5 V common-mode range allows direct connection to grounded RTD circuits; low 68 nV/√Hz noise improves resolution at sub-°C levels. | Use Scenario: Signal conditioning for PIR sensor outputs in battery-powered security lighting. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier for weak AC-coupled motion detection signals. Use Value: Ultra-low 34 µA supply current extends AA/AAA battery life to >5 years; phase margin ≥34° ensures stable AC coupling without oscillation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2CDR | SOIC-8 package, same electrical specs, tape-and-reel packaging | Suitable for automated SMT assembly; no through-hole footprint required | Select when PCB layout uses surface-mount technology and volume production demands reel delivery |
| LMV358IDR | Higher supply current (80 µA typ), wider GBW (1 MHz), but only 7 mV VIO max and no extended common-mode range below rail | Better for higher-speed signal paths but less suitable for sub-mV DC precision or grounded-sensor interfaces | Choose for cost-sensitive, moderate-precision apps where speed > offset stability; not drop-in for TLC27L2ACP's low-drift use cases |
Compared with TLC27L2CDR and LMV358IDR, the TLC27L2ACP offers unique through-hole manufacturability with uncompromised LinCMOS™ precision - making it optimal for prototyping, repair, and low-volume industrial modules where long-term DC stability and single-supply sensor interfacing are mandatory.
Availability
TLC27L2ACP is available at Aetrix Electronics and suitable for smoke detector manufacturing, pressure transmitter calibration, temperature sensor module assembly, and motion detector PCB production requiring stable component supply across extended lifecycle programs.
Supply support for TLC27L2ACP 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLC27Lx family was designed specifically for ultra-low-power, high-precision analog signal conditioning in battery-operated and field-deployed sensor systems - emphasizing offset stability, rail-compatible operation, and robustness across temperature extremes.
FAQ
What is the maximum operating temperature range for the TLC27L2ACP?
The TLC27L2ACP is characterized for operation from 0°C to +70°C, as indicated by its "C" suffix. It supports supply voltages from 3 V to 16 V within this range, with guaranteed specifications including input offset voltage ≤12 mV and supply current ≤42 µA at 70°C. Operation outside this range is not specified and may result in parametric degradation.
Does the TLC27L2ACP support true rail-to-rail input operation?
The TLC27L2ACP does not support rail-to-rail input - its common-mode input voltage range extends to −0.2 V (below GND) and up to 3.5 V at VDD = 5 V, but does not reach the positive rail. However, its output swings within 50 mV of GND and within 0.9 V of VDD, providing partial rail-to-rail output capability essential for single-supply designs.
Can the TLC27L2ACP drive capacitive loads directly?
The TLC27L2ACP exhibits ≥34° phase margin with 20 pF load at unity gain, but its stability degrades with larger capacitive loads. Driving >100 pF directly risks oscillation; for such cases, an isolation resistor (e.g., 100 Ω) between output and load is recommended. The TLC27L2ACP datasheet confirms stable operation only with CL ≤ 20 pF in standard test configurations.
How does the input offset voltage drift of the TLC27L2ACP compare to bipolar op amps?
The TLC27L2ACP specifies typical input offset voltage drift of 0.1 μV/month - significantly lower than most bipolar op amps (often >1 μV/month). This stability stems from its LinCMOS™ silicon-gate process, which avoids the oxide-trap mechanisms dominant in metal-gate devices, making the TLC27L2ACP superior for applications demanding decade-long calibration retention.
Is the TLC27L2ACP pin-compatible with other dual op amps in PDIP-8 packages?
The TLC27L2ACP follows the industry-standard dual op amp pinout (1IN+, 1IN−, 1OUT, GND, 2IN+, 2IN−, 2OUT, VDD) and is pin-compatible with LM358, TL072, and RC4558 in PDIP-8. However, electrical behavior differs significantly - e.g., TLC27L2ACP draws 34 µA vs LM358's 700 µA, and has 10¹² Ω input Z vs LM358's 2 MΩ - so functional substitution requires circuit validation.
TLC27L2ACP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.03V/µs
- Gain Bandwidth Product:
- 110 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 20µA (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
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC27L2ACP FAQ
1.How can I place an order for TLC27L2ACP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L2ACP 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 TLC27L2ACP reliable?
The price and inventory of TLC27L2ACP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L2ACP is usually 5 days.
3.What payment methods are accepted for TLC27L2ACP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L2ACP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L2ACP?
TLC27L2ACP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L2ACP 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 TLC27L2ACP?
For technical support, including TLC27L2ACP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L2ACP requirements.
6.How does Aetrix verify that TLC27L2ACP is sourced from the original manufacturer or authorized distributors?
All TLC27L2ACP 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 TLC27L2ACP meets industry standards.
7.What is the process for return or replacement of TLC27L2ACP?
All TLC27L2ACP units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L2ACP, 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 TLC27L2ACP part is unused and in its original packaging.
Return procedure for TLC27L2ACP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L2ACP Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
