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Texas Instruments TLC27L7IDRG4
- Part No.:
- TLC27L7IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC27L7IDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,096
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Product details
Overview
TLC27L7IDRG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for low-power, single-supply sensor signal conditioning. It delivers 1 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 amplification in battery-powered field transmitters and smoke detectors.
For engineers reviewing the TLC27L7IDRG4 datasheet, TLC27L7IDRG4 pinout, TLC27L7IDRG4 application, or TLC27L7IDRG4 equivalent, key selection criteria include its 1 mV precision grade, −40°C to +85°C industrial temperature range, SOIC-8 package, LinCMOS™ input stage with 10¹² Ω impedance, and compatibility with 4–16 V single-supply operation.
Technical Context
The TLC27L7IDRG4 uses Texas Instruments' silicon-gate LinCMOS™ process, delivering exceptional input offset voltage stability (<0.1 µV/month drift) and latch-up immunity. Its dual-channel architecture supports independent signal paths with matched performance across channels.
It operates with common-mode input voltage extending 0.2 V below ground (GND), supports rail-to-rail output swing, and maintains stable phase margin (≥29° at 85°C) under capacitive loads - critical for robustness in analog front-end designs interfacing high-impedance sensors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIO max | 1000 µV at 25°C - enables high-accuracy DC-coupled amplification without trimming |
| Supply voltage | 4 V to 16 V single supply - supports wide-range industrial power rails and battery operation |
| IDD typ | 34 µA at 5 V - allows multi-year battery life in remote sensor nodes |
| Input impedance | 10¹² Ω typical - minimizes loading on high-Z sources like piezoresistive or thermocouple sensors |
| Common-mode range | −0.2 V to 3.5 V (VDD = 5 V) - accepts inputs below ground for true single-supply transducer interfacing |
| Output swing | Within 50 mV of GND and within 0.9 V of VDD - preserves dynamic range in low-voltage systems |
| Unity-gain BW | 85 kHz at 25°C (VDD = 5 V) - sufficient for slow-varying sensor signals (e.g., pressure, temperature) |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 3.9 mm × 4.9 mm footprint, 1.75 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1IN+ | Noninverting input, Channel 1 | High-impedance node for reference or sensor signal connection |
| 1IN− | Inverting input, Channel 1 | Feedback path entry point; sets gain and stability in closed-loop configuration |
| 1OUT | Output, Channel 1 | Rail-to-rail capable output driving ADC input or next-stage buffer |
| GND | Ground / negative supply | Reference for both input common-mode and output swing; extends below 0 V |
| 2IN+ | Noninverting input, Channel 2 | Independent high-Z input for second sensor or signal path |
| 2IN− | Inverting input, Channel 2 | Separate feedback node enabling dual independent amplifiers on one die |
| VDD | Positive supply | Single power rail supporting 4–16 V; powers both op-amp channels |
| NC | No connect | Pin 8 is unused; no internal connection - must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Input offset voltage drift | 0.1 µV/month - ensures long-term calibration stability in field-deployed instrumentation |
| ESD protection | 2000 V HBM - reduces handling sensitivity and improves manufacturing yield |
| Latch-up immunity | Designed-in - prevents catastrophic failure during overvoltage or ESD events |
| Single-supply operation | Supports 4–16 V with inputs extending below GND - eliminates need for split supplies in portable systems |
| Low power consumption | 95 µW at 5 V - enables energy harvesting and ultra-low-power IoT node designs |
Applications
| Smoke and heat detector | Pressure transmitter |
|---|---|
Use Scenario: Amplifies low-level ionization chamber or thermistor signals in residential/commercial fire alarm units. IC Role / Device Role / Timing Role: Precision DC amplifier conditioning microvolt-level sensor outputs with minimal drift over temperature and time. Use Value: 1 mV VIO and 0.1 µV/month drift ensure reliable threshold detection without recalibration over 10+ year product lifetime. | Use Scenario: Signal conditioning front-end in industrial 4–20 mA pressure transmitters using strain-gauge bridges. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier core providing gain, offset correction, and rail-to-rail output drive. Use Value: 10¹² Ω input impedance avoids bridge imbalance errors; −0.2 V input range accommodates bridge mid-point bias below ground. |
| Temperature transmitter | Motion detector |
Use Scenario: Linearizing and amplifying RTD or thermocouple outputs in HVAC and process control systems. IC Role / Device Role / Timing Role: Low-drift, low-power dual op-amp implementing 3-wire RTD measurement and cold-junction compensation. Use Value: 34 µA supply current enables loop-powered (4–20 mA) operation; 1 mV VIO supports ±0.1°C accuracy over −40°C to +85°C. | Use Scenario: Signal conditioning for PIR sensor outputs in security lighting and occupancy sensing modules. IC Role / Device Role / Timing Role: AC-coupled amplifier with adjustable gain and offset nulling for weak, high-impedance pyroelectric signals. Use Value: Ultra-low input bias current (<60 pA) prevents signal loss across high-value coupling resistors; SOIC-8 eases layout in space-constrained PCBs. |
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 |
|---|---|---|---|
| TLV2772IDR | Higher 1.8–5.5 V supply range; 2.5 MHz GBW; 1.6 mV VIO max; rail-to-rail I/O | Better suited for higher-speed, lower-voltage (e.g., 3.3 V) systems requiring faster settling | Select when bandwidth >100 kHz or supply <4 V is required; not drop-in due to different VIO spec and supply limits |
| OPA2333AIDR | Zero-drift architecture; 12 µV VIO max; 17 µA IDD; 360 kHz GBW; 1.8–5.5 V supply | Superior DC accuracy and drift performance for precision measurement, but higher cost and narrower supply range | Choose for sub-µV drift-critical applications (e.g., medical sensors); not interchangeable due to different topology and pinout |
Compared with TLV2772IDR and OPA2333AIDR, the TLC27L7IDRG4 provides superior long-term offset stability (0.1 µV/month) and wider 4–16 V supply flexibility, making it optimal for industrial field transmitters where decades-long calibration integrity and legacy power rail compatibility are essential.
Availability
TLC27L7IDRG4 is available at Aetrix Electronics and suitable for pressure transmitters, temperature transmitters, smoke detectors, and motion detectors requiring stable component supply across extended industrial temperature ranges and multi-year production cycles.
Supply support for TLC27L7IDRG4 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, embedded processing, and connectivity technologies, with over 90 years of innovation in precision analog ICs.
The TLC27Lx family was designed for ultra-low-power, high-precision sensor signal conditioning in industrial and safety-critical applications - emphasizing long-term offset stability, single-supply operation, and robustness across extended temperature ranges.
FAQ
What is the maximum input offset voltage specification for TLC27L7IDRG4 at 25°C?
The TLC27L7IDRG4 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 −40°C to +85°C operating range up to 2000 µV, making it suitable for precision DC amplification where trimming is impractical.
Does TLC27L7IDRG4 support true single-supply operation with inputs below ground?
Yes, the TLC27L7IDRG4 supports common-mode input voltages down to −0.2 V relative to GND at VDD = 5 V, confirmed in Section 5.3 Recommended Operating Conditions. This enables direct interfacing with transducers whose output references below ground - such as bridge circuits with center-tap bias - without level-shifting circuitry.
What package type and footprint does TLC27L7IDRG4 use?
The TLC27L7IDRG4 is supplied in an 8-pin SOIC (D) package per TI's Mechanical, Packaging, and Orderable Information section. Its dimensions are 3.9 mm × 4.9 mm with 1.27 mm lead pitch, compatible with standard surface-mount assembly processes and widely used in industrial PCB layouts.
How does the supply current of TLC27L7IDRG4 compare between 5 V and 10 V operation?
At 25°C, the TLC27L7IDRG4 draws 34 µA typical supply current with VDD = 5 V and 46 µA typical with VDD = 10 V (Section 5.8 and 5.10). This near-linear increase reflects its CMOS biasing architecture and confirms predictable power scaling across its 4–16 V operating range - critical for battery-life estimation in portable systems.
Is TLC27L7IDRG4 rated for automotive or extended temperature applications?
No, the TLC27L7IDRG4 carries the 'I' suffix, specifying operation from −40°C to +85°C - an industrial temperature grade. It is not qualified for automotive AEC-Q100 or military (M-suffix) −55°C to +125°C ranges. For automotive use, engineers should evaluate alternatives like the TLV2772-Q1 or OPA2333-Q1 explicitly qualified to AEC-Q100 standards.
TLC27L7IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC27L7IDRG4 FAQ
1.How can I place an order for TLC27L7IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC27L7IDRG4 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 TLC27L7IDRG4 reliable?
The price and inventory of TLC27L7IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC27L7IDRG4 is usually 5 days.
3.What payment methods are accepted for TLC27L7IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC27L7IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC27L7IDRG4?
TLC27L7IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC27L7IDRG4 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 TLC27L7IDRG4?
For technical support, including TLC27L7IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC27L7IDRG4 requirements.
6.How does Aetrix verify that TLC27L7IDRG4 is sourced from the original manufacturer or authorized distributors?
All TLC27L7IDRG4 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 TLC27L7IDRG4 meets industry standards.
7.What is the process for return or replacement of TLC27L7IDRG4?
All TLC27L7IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC27L7IDRG4, 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 TLC27L7IDRG4 part is unused and in its original packaging.
Return procedure for TLC27L7IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC27L7IDRG4 Tags
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LM358DT
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