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Texas Instruments TLC27L7IP
- Part No.:
- TLC27L7IP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC27L7IP.pdf
- Description:
- IC CMOS 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,213
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Product details
Overview
TLC27L7IP from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning in industrial and remote applications. It delivers 1 mV max input offset voltage (25°C), ultra-low 34 µA typical supply current at 5 V, and rail-to-rail output swing down to the negative rail - enabling accurate amplification of microvolt-level transducer outputs in battery-powered field transmitters.
For engineers reviewing the TLC27L7IP datasheet, TLC27L7IP pinout, TLC27L7IP application, or TLC27L7IP equivalent, key selection criteria include its 1 mV precision grade, −0.2 V to 3.5 V common-mode input range at 5 V supply, 85 kHz unity-gain bandwidth, LinCMOS™ input impedance >10¹² Ω, and operation across −40°C to +85°C.
Technical Context
The TLC27L7IP uses Texas Instruments' silicon-gate LinCMOS™ process, delivering superior offset-voltage stability (<0.1 µV/month drift) and latch-up immunity versus metal-gate alternatives. Its dual-channel architecture supports independent signal paths with matched DC performance.
It operates from a single 4–16 V supply, accepts inputs below ground (−0.2 V at VDD = 5 V), and drives loads to within 50 mV of GND - making it suitable for high-impedance, low-voltage sensor interfaces where power and precision are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | Max 1000 µV at 25°C - enables direct amplification of sub-millivolt sensor outputs without trimming. |
| Supply Current (2 ch) | Typ 34 µA at 5 V - supports >10-year battery life in wireless sensor nodes. |
| Common-Mode Input Range | −0.2 V to 3.5 V at 5 V supply - accepts signals referenced below ground, e.g., thermocouple cold-junction compensation. |
| Unity-Gain Bandwidth | 85 kHz at 5 V - sufficient for DC–10 kHz analog front-end filtering in pressure/flow transmitters. |
| Input Impedance | 10¹² Ω typical - prevents loading of high-Z sources like piezoresistive bridges or pH electrodes. |
| Output Voltage Swing | Within 50 mV of GND and 0.9 V of VDD - maximizes dynamic range in single-supply systems. |
| Temp Range | −40°C to +85°C - qualified for industrial field transmitter environments. |
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 connection; accepts voltages down to −0.2 V. |
| 1IN− | Inverting input, Channel 1 | Feedback or gain-setting node; matched bias current minimizes offset error in closed-loop configs. |
| 1OUT | Output, Channel 1 | Capable of sourcing/sinking ±30 mA; swings to within 50 mV of GND for full-scale low-side detection. |
| GND | Ground / Negative supply | Reference for both channels; common return for sensor and load circuits. |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second sensor or diagnostic path; same offset and drift specs as Ch1. |
| 2IN− | Inverting input, Channel 2 | Enables dual-channel instrumentation amp or differential receiver configurations. |
| VDD | Positive supply | Accepts 4–16 V; internal regulation ensures stable biasing across supply variation. |
| NC | No connect | Pin 7 is unconnected - no internal circuitry; must remain floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | 34 µA typical supply current enables multi-year operation on coin-cell batteries in remote sensors. |
| LinCMOS™ input stage | 10¹² Ω input impedance and <60 pA bias current prevent signal loss in high-resistance bridge or electrode interfaces. |
| Rail-to-rail output capability | Output swings to within 50 mV of GND, preserving full dynamic range in single-supply 0–5 V systems. |
| Extended common-mode range | Inputs operate down to −0.2 V, supporting ground-referenced or level-shifted sensor topologies without external biasing. |
| ESD protection | Rated to 2000 V HBM per MIL-STD-883C Method 3015.2 - reduces handling sensitivity during assembly. |
Applications
| Pressure Transmitter | Temperature Transmitter |
|---|---|
Use Scenario: Amplifying millivolt-level output from silicon piezoresistive pressure sensors in HVAC or process control systems. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with offset correction and low-drift buffering before ADC sampling. Use Value: 1 mV max VIO and 1.1 µV/°C tempco ensure <0.1% FS error over temperature without calibration. | Use Scenario: Conditioning output from Pt100 RTDs or thermistors in industrial temperature monitoring nodes. IC Role / Device Role / Timing Role: Low-power, high-Z buffer and programmable-gain amplifier in 4–20 mA loop-powered transmitters. Use Value: 34 µA supply current allows full functionality within 3.5 mA loop budget while maintaining 12-bit effective resolution. |
| Flow Transmitter | Smoke Detector Signal Chain |
Use Scenario: Interfacing with electromagnetic flow meter coils and low-level Hall-effect flow sensors. IC Role / Device Role / Timing Role: Dual-channel signal conditioner - one channel for sensor excitation feedback, one for output amplification. Use Value: Matched dual topology ensures consistent gain and offset tracking between channels, reducing system-level drift. | Use Scenario: Amplifying weak ionization-current signals from smoke chamber electrodes in battery-operated detectors. IC Role / Device Role / Timing Role: Ultra-low-power transimpedance amplifier with adjustable gain and offset nulling. Use Value: Sub-100 nA input bias current prevents leakage-induced false alarms; 95 µW total dissipation extends 10-year battery life. |
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 |
|---|---|---|---|
| TLV2772IP | Higher 1.8–5.5 V supply range; 2.5 MHz GBW; 1.6 mV VIO max; 170 µA supply current | Better for higher-speed AC-coupled sensing; less suitable for ultra-low-power battery use | Select when bandwidth >100 kHz required and power budget allows >5× higher current. |
| OPA2333PA | Zero-drift architecture; 12 µV VIO max; 17 µA supply current; 360 kHz GBW; 1.8–5.5 V supply | Superior DC accuracy and drift; requires external VREF for single-supply rail-to-rail output | Select when sub-20 µV offset and near-zero drift are mandatory, and layout accommodates reference routing. |
Compared with TLV2772IP and OPA2333PA, the TLC27L7IP offers the lowest quiescent power and widest supply range (4–16 V) among precision dual op-amps, making it uniquely suited for legacy 12 V industrial transmitters and long-life remote sensors where moderate bandwidth suffices.
Availability
TLC27L7IP is available at Aetrix Electronics and suitable for pressure transmitters, temperature transmitters, flow transmitters, and smoke detectors requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLC27L7IP 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 50 years of op-amp design leadership.
The TLC27Lx family was engineered for precision, ultra-low-power analog signal conditioning in industrial field instruments - emphasizing offset stability, single-supply operation, and robustness in harsh environments.
FAQ
What is the maximum input offset voltage specification for TLC27L7IP at 25°C?
The TLC27L7IP has a maximum input offset voltage of 1000 µV (1 mV) at 25°C, as specified in the Electrical Characteristics table for I-suffix devices under VDD = 5 V conditions. This value is guaranteed across the full operating temperature range of −40°C to +85°C, with a worst-case limit of 2000 µV.
Can TLC27L7IP operate from a single 5-V supply with inputs referenced to ground?
Yes, the TLC27L7IP supports true single-supply operation. Its common-mode input voltage range extends to −0.2 V at VDD = 5 V, allowing inputs to be grounded or slightly negative. Combined with output swing to within 50 mV of GND, this enables fully ground-referenced signal chains without level-shifting circuitry.
What package type is used for the TLC27L7IP part number?
The TLC27L7IP uses an 8-pin plastic dual in-line package (PDIP) with 0.3-inch body width and through-hole leads. This package is designated by the "P" suffix in the TI ordering code and is distinct from SOIC (D), SOP (PS), or TSSOP (PW) variants.
How does the input bias current of TLC27L7IP compare to bipolar op-amps in sensor applications?
The TLC27L7IP exhibits typical input bias current of 0.6 pA at 25°C - over six orders of magnitude lower than typical bipolar op-amps (e.g., LM358: ~45 nA). This eliminates significant voltage errors when interfacing with high-impedance sources such as pH electrodes, photodiodes, or unbuffered RTDs, preserving measurement accuracy without guard traces or active guarding.
Is the TLC27L7IP pin-compatible with other devices in the TLC27Lx family?
Yes, all TLC27Lx dual op-amps - including TLC27L2IP, TLC27L2AIP, TLC27L2BIP, and TLC27L7IP - share identical 8-pin PDIP pinouts and electrical compatibility. The only differences are input offset voltage grade and associated drift specifications; no PCB redesign is needed when upgrading from TLC27L2IP to TLC27L7IP for improved DC accuracy.
TLC27L7IP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 170 µV
- Current - Supply:
- 20µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC27L7IP FAQ
1.How can I place an order for TLC27L7IP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L7IP 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 TLC27L7IP reliable?
The price and inventory of TLC27L7IP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L7IP is usually 5 days.
3.What payment methods are accepted for TLC27L7IP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L7IP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L7IP?
TLC27L7IP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L7IP 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 TLC27L7IP?
For technical support, including TLC27L7IP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L7IP requirements.
6.How does Aetrix verify that TLC27L7IP is sourced from the original manufacturer or authorized distributors?
All TLC27L7IP 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 TLC27L7IP meets industry standards.
7.What is the process for return or replacement of TLC27L7IP?
All TLC27L7IP units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L7IP, 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 TLC27L7IP part is unused and in its original packaging.
Return procedure for TLC27L7IP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L7IP Tags
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