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STMicroelectronics TL074BCDT
- Part No.:
- TL074BCDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL074BCDT.pdf
- Description:
- IC OPAMP JFET 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,914
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Product details
Overview
TL074BCDT from STMicroelectronics is a low-noise, JFET-input quad operational amplifier in SO-14 package, featuring 16 V/µs typical slew rate, 15 nV/√Hz input voltage noise, and ±11 V common-mode input range at ±15 V supply. It delivers 0.01% THD at 1 kHz and supports rail-to-rail output swing up to ±12 V into 2 kΩ load - widely deployed in audio signal conditioning and active filter stages.
For engineers reviewing the TL074BCDT datasheet, TL074BCDT pinout, TL074BCDT application, or TL074BCDT equivalent, key selection criteria include JFET-input bias current (≤30 pA), wide supply range (±3 to ±18 V), thermal stability across 0°C to +70°C, and SO-14 footprint compatibility with legacy TL07x designs.
Technical Context
The TL074BCDT integrates four matched JFET-input op-amps on a single die, each with high-impedance (>10¹² Ω) inputs, internal frequency compensation, and short-circuit protected outputs. Its architecture avoids latch-up and enables stable unity-gain operation without external compensation.
It operates over ±3 V to ±18 V dual supplies (6–36 V total), supports common-mode inputs up to VCC±, and maintains 80 dB CMRR and PSRR across temperature. The device is not automotive-qualified and excludes safety-critical use per ST's disclaimer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 16 V/µs typical - enables clean 100 kHz bandpass filtering without slew-induced distortion |
| Input Voltage Noise | 15 nV/√Hz at 1 kHz - critical for low-noise preamplifier and sensor interface stages |
| Input Bias Current | 30 pA max at +25°C - preserves signal integrity in high-impedance transducer circuits |
| Common-Mode Range | ±11 V at ±15 V supply - allows direct interfacing with bipolar analog signals near rails |
| THD + N | 0.01% at 1 kHz, 2 Vpp - meets fidelity requirements for consumer and pro-audio line-level stages |
| Supply Voltage Range | ±3 V to ±18 V - supports both low-power portable systems and industrial ±15 V rails |
| Operating Temperature | 0°C to +70°C - specified for commercial-grade instrumentation and office equipment |
Pinout & Package
TL074BCDT is housed in a 14-pin SOIC (SO-14) plastic micropackage, 8.75 mm × 4.0 mm body, 1.27 mm pitch, with 1.65 mm max height and 105 °C/W junction-to-ambient thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Op-Amp 1) | Differential input node for first amplifier; high-impedance JFET stage |
| 2 | Non-inverting Input (Op-Amp 1) | Reference input for Op-Amp 1; accepts signals within ±11 V of ground |
| 3 | Output (Op-Amp 1) | Class-AB buffered output capable of ±12 V swing into 2 kΩ |
| 4 | VCC− (Negative Supply) | Ground reference for negative rail; must be connected before power-up |
| 5 | Inverting Input (Op-Amp 2) | Second amplifier's inverting node; electrically isolated from other sections |
| 6 | Non-inverting Input (Op-Amp 2) | Independent reference input for Op-Amp 2; same specs as Pin 2 |
| 7 | Output (Op-Amp 2) | Second independent output; shares no internal nodes with other amplifiers |
| 8 | Output (Op-Amp 3) | Third amplifier output; fully decoupled channel for multi-path signal processing |
| 9 | Non-inverting Input (Op-Amp 3) | Input for third op-amp; matches Pin 2/6 electrical behavior |
| 10 | Inverting Input (Op-Amp 3) | Inverting node for third amplifier; identical bias and noise performance |
| 11 | VCC+ (Positive Supply) | Positive rail connection; requires local 100 nF bypass capacitor |
| 12 | Inverting Input (Op-Amp 4) | Fourth amplifier's inverting input; validated for ≤30 pA bias current |
| 13 | Non-inverting Input (Op-Amp 4) | Final op-amp reference input; supports same common-mode range as others |
| 14 | Output (Op-Amp 4) | Fourth independent output; rated for continuous short-circuit to either rail |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise JFET input stage | 15 nV/√Hz input voltage noise enables microphone preamps and piezo sensor interfaces without added gain-stage noise |
| High input impedance | 10¹² Ω input resistance preserves signal amplitude in passive filter and high-Z sensor networks |
| Internal frequency compensation | Unity-gain stable without external components - simplifies PCB layout for gain-of-1 buffers and followers |
| Output short-circuit protection | Indefinite short-circuit tolerance to either supply rail prevents field failure in transient overload conditions |
| Low harmonic distortion | 0.01% THD at 1 kHz ensures accurate waveform reproduction in audio distribution and test equipment |
Applications
| Audio Distribution Amplifier | Active Bandpass Filter |
|---|---|
|
Use Scenario: Distributing a single line-level audio source to multiple destinations (e.g., studio monitor feeds, recording channels). IC Role / Device Role / Timing Role: Quad op-amp configured as unity-gain buffers, isolating source impedance and preventing crosstalk. Use Value: Maintains signal integrity across four parallel paths with <0.01% THD and no phase mismatch between channels. |
Use Scenario: Extracting 100 kHz narrowband signals from noisy RF or switching environments. IC Role / Device Role / Timing Role: Configured as cascaded second-order bandpass stages using positive feedback topology. Use Value: Achieves Q = 69 and 16× gain at 100 kHz with 16 V/µs slew rate preventing pulse distortion. |
| DC-Coupled Instrumentation Front-End | Multi-Channel Sensor Signal Conditioning |
|
Use Scenario: Amplifying low-level DC-coupled sensor outputs (e.g., strain gauge bridges) with minimal offset drift. IC Role / Device Role / Timing Role: Used in differential-to-single-ended conversion and level-shifting stages. Use Value: 10 µV/°C offset drift and ±11 V common-mode range enable stable operation across 0–70°C ambient. |
Use Scenario: Simultaneous conditioning of four independent analog sensor channels (e.g., temperature, pressure, humidity). IC Role / Device Role / Timing Role: One op-amp per channel for gain, filtering, and buffering prior to ADC sampling. Use Value: Matched quad topology ensures consistent gain error (<3 mV offset) and noise floor across all channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad JFET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL074CDR (TI) | Same SO-14 package, identical pinout, but rated for 0°C to +70°C only; 15 nV/√Hz noise, 13 V/µs slew rate | Limited to commercial ambient; lower slew rate reduces high-frequency filter fidelity | Acceptable for cost-sensitive audio line drivers where bandwidth <1 MHz suffices |
| RC4136N (TI) | Quad BJT-input op-amp; higher input bias current (200 nA), 10 nV/√Hz noise, ±13 V output swing | Unsuitable for high-Z sources; better noise but worse DC accuracy due to bias current errors | Preferable only when ultra-low noise dominates over input impedance requirements |
Compared with TL074BCDT, TL074CDR offers identical functionality at lower cost but reduced slew rate limits dynamic response, while RC4136N trades JFET input advantages for marginally lower noise - making TL074BCDT optimal for balanced high-Z, low-noise, wide-swing applications.
Availability
TL074BCDT is available at Aetrix Electronics and suitable for audio distribution systems, active filter modules, instrumentation front-ends, and multi-channel sensor signal conditioning requiring stable component supply and SO-14 footprint continuity.
Supply support for TL074BCDT 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.
The TL074 series belongs to ST's precision analog portfolio, engineered specifically for low-noise, high-input-impedance signal conditioning in commercial-grade audio, test, and measurement equipment.
FAQ
Is TL074BCDT pin-compatible with TL074CDT?
Yes - TL074BCDT and TL074CDT share identical SO-14 pinout, electrical specifications, and functional behavior. Both are commercial-grade variants (0°C to +70°C), differ only in date code and minor process revisions, and may be interchanged without circuit modification.
Can TL074BCDT operate from a single +12 V supply?
No - TL074BCDT is a dual-supply op-amp requiring symmetric or asymmetric bipolar rails (e.g., +12 V / −12 V or +15 V / −5 V). Its input common-mode range extends to VCC±, but it lacks rail-to-rail input capability and cannot accept inputs near ground on single-supply configurations.
What is the maximum capacitive load TL074BCDT can drive stably?
TL074BCDT is unity-gain stable with up to 100 pF capacitive load when configured as a voltage follower, per Figure 14 in the datasheet. Driving >100 pF requires isolation resistor (e.g., 100 Ω) in series with the output to maintain phase margin ≥45°.
Does TL074BCDT have ESD protection, and what level is rated?
Yes - TL074BCDT features integrated ESD protection rated at 1 kV HBM (human body model), 200 V MM (machine model), and 1.5 kV CDM (charged device model), as confirmed in Table 1 of the ST datasheet (DocID2297 Rev 5).
TL074BCDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 13V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 36 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
TL074BCDT FAQ
1.How can I place an order for TL074BCDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TL074BCDT 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 TL074BCDT reliable?
The price and inventory of TL074BCDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL074BCDT is usually 5 days.
3.What payment methods are accepted for TL074BCDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL074BCDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL074BCDT?
TL074BCDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL074BCDT 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 TL074BCDT?
For technical support, including TL074BCDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL074BCDT requirements.
6.How does Aetrix verify that TL074BCDT is sourced from the original manufacturer or authorized distributors?
All TL074BCDT 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 TL074BCDT meets industry standards.
7.What is the process for return or replacement of TL074BCDT?
All TL074BCDT units undergo pre-shipment inspection (PSI). If there is an issue with TL074BCDT, 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 TL074BCDT part is unused and in its original packaging.
Return procedure for TL074BCDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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