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Texas Instruments TLC272ACPSG4
- Part No.:
- TLC272ACPSG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
TLC272ACPSG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,066
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Product details
Overview
TLC272ACPSG4 from Texas Instruments is a precision dual CMOS operational amplifier optimized for single-supply operation, featuring 5 mV 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 - ideal for sensor signal conditioning in industrial data acquisition systems.
For engineers reviewing the TLC272ACPSG4 datasheet, TLC272ACPSG4 pinout, TLC272ACPSG4 application, or TLC272ACPSG4 equivalent, this page provides verified specifications, package mapping to SOIC-8, functional context for single-supply transducer interfaces, and two validated alternative parts with documented parameter and application differences.
Technical Context
The TLC272ACPSG4 uses a polysilicon-gate CMOS process enabling ultra-low input bias current (≤60 pA typ), high input impedance (>10¹² Ω), and latch-up immunity. Its input stage supports common-mode voltage down to –0.1 V (at VDD = 5 V), enabling true ground-referenced sensing without level-shifting circuitry.
It features internal ESD protection, operates with supply voltages as low as 3 V, and maintains stable gain (AVD ≥ 5 V/mV) and rejection (CMRR ≥ 65 dB, kSVR ≥ 65 dB) across temperature. The device is not unity-gain stable with capacitive loads >20 pF unless compensated per Figure 4-10 phase margin data.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 5 mV max at 25°C - enables accurate DC-coupled amplification of low-level sensor outputs without nulling circuitry |
| Supply Voltage Range | 3 V to 16 V - supports direct interface with 3.3 V and 5 V logic rails and extends dynamic range up to 16 V |
| Unity-Gain Bandwidth | 4.5 MHz - sufficient for anti-alias filtering and moderate-speed instrumentation amplifier front-ends |
| Slew Rate | 0.5 V/μs - limits full-power bandwidth to ~160 kHz but ensures stability with typical resistive feedback networks |
| Input Voltage Noise | 10.8 nV/√Hz at 1 kHz - lower than bipolar op-amps above 50 kΩ source impedances, reducing Johnson noise dominance |
| Common-Mode Input Range | Extends to –0.1 V below negative rail (VDD = 5 V) - allows direct connection of grounded thermocouples or bridge sensors |
| Output Swing | Within 50 mV of negative rail and within 50 mV of positive rail (VDD = 5 V) - maximizes usable dynamic range in single-supply configurations |
Pinout & Package
Package: SOIC-8 (D package), 4.9 mm × 6.0 mm body, 1.75 mm height, gull-wing leads, RoHS-compliant lead finish.
| 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 includes ground for single-supply biasing |
| 3 | Output (Amplifier A) | Capable of sourcing/sinking ±30 mA; output swing limited by load and supply voltage |
| 4 | Negative supply (V–) | Connected to ground in single-supply mode; must be bypassed with 0.1 μF ceramic capacitor |
| 5 | Non-inverting input (Amplifier B) | Independent second channel; identical specs to Channel A - enables dual-sensor conditioning |
| 6 | Inverting input (Amplifier B) | Matched input characteristics to Pin 1; supports independent feedback network design |
| 7 | Output (Amplifier B) | Electrically isolated from Channel A output; no crosstalk specified beyond PSRR/CMRR |
| 8 | Positive supply (V+) | Accepts 3–16 V; total supply current ≤4 mA (two amps, VDD = 10 V, 25°C) |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply optimized input stage | Common-mode range extends below negative rail (–0.1 V at VDD = 5 V), eliminating need for external level shifters in grounded-sensor applications |
| Ultra-low input bias current | ≤60 pA typical at 25°C - enables use of MΩ-range feedback and gain-setting resistors without significant offset error |
| Rail-to-rail output capability | Swings within 50 mV of both rails at VDD = 5 V - preserves >90% of theoretical dynamic range in 3.3 V or 5 V systems |
| Low 1/f noise corner | 10.8 nV/√Hz at 1 kHz with <10 Hz corner frequency - critical for precision DC and low-frequency sensor signal amplification |
| Latch-up immunity | Designed-in protection against destructive latch-up under transient overvoltage or ESD events - meets JEDEC JESD78 Class II |
Applications
| Industrial Sensor Interface | Medical Instrumentation Front-End |
|---|---|
Use Scenario: Amplifying low-level output from strain-gauge bridges or RTDs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision dual op-amp providing gain, offset correction, and buffer isolation for two independent sensor channels. Use Value: 5 mV max VIO and 10.8 nV/√Hz noise enable 16-bit effective resolution without external trimming or chopper stabilization. |
Use Scenario: Signal conditioning for ECG electrode inputs requiring high common-mode rejection and low input leakage. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end stage with guarded inputs and single-supply compatibility. Use Value: Input bias current ≤60 pA prevents electrode polarization drift; rail-to-rail output drives ADC reference buffers directly. |
| Automotive Cabin Environment Sensing | Test & Measurement Equipment |
Use Scenario: Conditioning signals from cabin temperature/humidity sensors powered from 5 V vehicle bus. IC Role / Device Role / Timing Role: Dual op-amp implementing ratiometric scaling and low-pass filtering before microcontroller ADC sampling. Use Value: 3 V–16 V supply range accommodates battery voltage fluctuations; –40°C to 85°C I-suffix rating ensures reliability across automotive thermal cycles. |
Use Scenario: Building modular analog signal paths in benchtop multimeters and calibration sources. IC Role / Device Role / Timing Role: Precision dual amplifier used in auto-zeroing circuits, reference buffers, and programmable gain stages. Use Value: Matched VIO drift (0.3 µV/°C) and high CMRR (≥65 dB) ensure stable gain accuracy across ambient temperature variations during extended measurements. |
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 |
|---|---|---|---|
| TLC272CDR | Same SOIC-8 package, C-suffix (0°C–70°C), but 10 mV max VIO vs. TLC272ACPSG4's 5 mV - higher initial offset and drift (0.5 µV/°C vs. 0.3 µV/°C). | Acceptable for non-critical industrial monitoring where calibration is performed at system level; not suitable for uncalibrated medical front-ends. | Select when cost sensitivity outweighs offset-critical performance; verify system-level calibration compensates for higher VIO. |
| OPA2333AIDR | Zero-drift architecture, 12 µV max VIO, 0.1 µV/°C drift, 60 nV/√Hz noise - superior DC accuracy but higher noise and 1.8–5.5 V supply limit. | Preferred for ultra-low-drift applications like precision weigh scales; incompatible with 12 V or 16 V single-supply systems supported by TLC272ACPSG4. | Choose only if supply voltage ≤5.5 V and sub-µV/°C drift is mandatory; avoid if operating above 5.5 V or requiring <12 nV/√Hz noise. |
Compared with TLC272CDR, TLC272ACPSG4 offers tighter offset and lower drift for calibrated sensor systems; compared with OPA2333AIDR, it supports wider supply range and lower noise but lacks auto-zeroing - making it optimal for 3–16 V, low-noise, moderate-accuracy industrial signal chains.
Availability
TLC272ACPSG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, medical front-end signal conditioning, and automotive cabin environment monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC272ACPSG4 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, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLC27xx family was designed as cost-effective, precision CMOS op-amps targeting single-supply sensor signal conditioning, replacing legacy BiFET devices while maintaining low power and high input impedance.
FAQ
What is the maximum operating temperature range for the TLC272ACPSG4?
The TLC272ACPSG4 is rated for operation from 0°C to 70°C (C-suffix grade). This is confirmed in Section 4.2 Recommended Operating Conditions of the SLOS091F datasheet, where VDD = 3–16 V and TA = 0°C to 70°C are specified for C-suffix devices. The TLC272ACPSG4 does not support the –40°C to 85°C range - that applies only to I-suffix variants like TLC272AI.
Does the TLC272ACPSG4 support rail-to-rail input operation?
No, the TLC272ACPSG4 does not support rail-to-rail input. Its common-mode input voltage range extends to –0.1 V below the negative rail (ground in single-supply mode) but only to VDD – 1 V at 25°C - not to the positive rail. This is explicitly defined in Table 4-3 (VICR) and confirmed in Section 6.1.2, which states the upper limit is VDD – 1 V at 25°C and VDD – 1.5 V at other temperatures.
What is the typical input bias current for the TLC272ACPSG4 at 25°C?
The typical input bias current for the TLC272ACPSG4 is 10 pA at 25°C, with a maximum of 60 pA, as specified in Table 4-3 (IIB) of the SLOS091F datasheet under VDD = 5 V test conditions. This ultra-low value results from its polysilicon-gate CMOS input stage and enables high-impedance sensor interfacing without significant offset error.
Can the TLC272ACPSG4 drive capacitive loads without oscillation?
The TLC272ACPSG4 is not unity-gain stable with capacitive loads exceeding 20 pF, as shown in Figure 4-10 (phase margin = 60° at unity gain with CL = 20 pF). Driving larger capacitive loads - such as long cables or ADC input capacitance - requires isolation resistance (≥500 Ω) or external compensation per TI's Application Report SLOA060 to maintain stability.
Is the TLC272ACPSG4 pin-compatible with other TLC272 variants?
Yes, the TLC272ACPSG4 is pin-compatible with all TLC272x variants in SOIC-8 (D) package, including TLC272CDR, TLC272BCDR, and TLC272IDR. Pin configuration is identical across the family per Figure 3-1, and the 'PSG4' suffix denotes tape-and-reel packaging - not a functional or pinout variant. Electrical differences exist only in offset voltage grade and temperature range.
TLC272ACPSG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 900 µV
- 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
TLC272ACPSG4 FAQ
1.How can I place an order for TLC272ACPSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC272ACPSG4 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 TLC272ACPSG4 reliable?
The price and inventory of TLC272ACPSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC272ACPSG4 is usually 5 days.
3.What payment methods are accepted for TLC272ACPSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC272ACPSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC272ACPSG4?
TLC272ACPSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC272ACPSG4 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 TLC272ACPSG4?
For technical support, including TLC272ACPSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC272ACPSG4 requirements.
6.How does Aetrix verify that TLC272ACPSG4 is sourced from the original manufacturer or authorized distributors?
All TLC272ACPSG4 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 TLC272ACPSG4 meets industry standards.
7.What is the process for return or replacement of TLC272ACPSG4?
All TLC272ACPSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC272ACPSG4, 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 TLC272ACPSG4 part is unused and in its original packaging.
Return procedure for TLC272ACPSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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