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STMicroelectronics TS274CDT
- Part No.:
- TS274CDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TS274CDT.pdf
- Description:
- IC CMOS 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:17,054
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Product details
Overview
TS274CDT from STMicroelectronics is a high-performance CMOS quad operational amplifier designed for single- or dual-supply operation, featuring 3.5 MHz gain bandwidth product, 1 mA/amp supply current, rail-to-ground output swing, and ±18 V differential input voltage rating. It delivers low input bias current (1–300 pA), 65–80 dB common-mode rejection, and stable unity-gain performance in industrial temperature range (0°C to +70°C) within SO-14 packaging.
For engineers reviewing the TS274CDT datasheet, TS274CDT pinout, TS274CDT application, or TS274CDT equivalent, key selection criteria include capacitive-load phase margin (≥40°), input offset voltage (≤10 mV), output drive capability (±60 mA short-circuit), and compatibility with 3–16 V supply rails in sensor signal conditioning, active filtering, and precision analog front-ends.
Technical Context
The TS274CDT employs ST's silicon gate CMOS process to achieve high input impedance (>1012 Ω) and ultra-low input current drift over temperature. Its internal architecture includes a two-stage transconductance amplifier with dominant-pole compensation, enabling unity-gain stability without external components.
It supports rail-to-ground output swing (VOL ≤ 50 mV at IL = 45 mA) and operates across 3–16 V supply rails while maintaining specified AC performance (GBP = 3.5 MHz, SR = 5.5 V/µs) and DC accuracy (Vio ≤ 10 mV, ΔVio/°C = 2 µV/°C) under full industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 3.5 MHz - sets maximum usable closed-loop bandwidth at unity gain; enables stable 100 kHz operation with ≥40 dB gain |
| Supply Current per Amplifier | 1000–1700 µA - defines total quiescent power draw (4–6.8 mA for quad) in 3–16 V systems |
| Input Offset Voltage | ≤10 mV (max) - limits DC error in precision amplification; typical 1.1 mV at 25°C |
| Common-Mode Rejection Ratio | 65–80 dB - ensures robustness against shared-noise interference in multi-channel sensing |
| Output Short-Circuit Current | ±60 mA - supports direct driving of moderate loads (e.g., 150 Ω termination) without external buffers |
| Slew Rate | 5.5 V/µs - determines maximum undistorted sinusoidal frequency at 1 VPP (≈880 kHz) |
| Phase Margin | ≥40° - guarantees stable step response into 100 pF capacitive loads without oscillation |
Pinout & Package
TS274CDT is supplied in SO-14 (Plastic micropackage), a surface-mount 14-pin small outline integrated circuit with 1.27 mm pitch, JEDEC MS-012 compliant footprint, and ECOPACK® lead-free interconnect.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp 1) | High-impedance node accepting negative feedback or signal inversion path for first op-amp |
| 2 | Non-inverting Input (Amp 1) | High-Z reference or signal injection point for first amplifier; supports rail-to-rail common-mode range (0 to VCC−1.5 V) |
| 3 | Output (Amp 1) | Class-AB output stage capable of sourcing/sinking ≥45 mA; swings to ground with <50 mV saturation |
| 4 | VCC− (Negative Supply) | Ground reference for single-supply operation or negative rail in dual-supply configuration |
| 5 | Inverting Input (Amp 2) | Independent high-Z input for second amplifier; electrically isolated from other channels |
| 6 | Non-inverting Input (Amp 2) | Second amplifier's positive input; shares same CMR and input bias specs as Pin 2 |
| 7 | Output (Amp 2) | Second independent output; channel separation >120 dB prevents crosstalk in multi-channel filters |
| 8 | VCC+ (Positive Supply) | Primary power rail (3–16 V); supplies all four amplifiers; thermal resistance RthJA = 103 °C/W |
| 9 | Inverting Input (Amp 3) | Third amplifier input; identical electrical characteristics to Pins 1 and 5 |
| 10 | Non-inverting Input (Amp 3) | Third amplifier's non-inverting input; supports same Vicm and Ib specs |
| 11 | Output (Amp 3) | Third output; maintains specified GBP and SR under load up to 10 kΩ |
| 12 | Inverting Input (Amp 4) | Fourth amplifier input; fully decoupled; no shared bias networks |
| 13 | Non-inverting Input (Amp 4) | Final amplifier's positive input; validated for operation down to 0 V common-mode |
| 14 | Output (Amp 4) | Fourth output; meets VOL ≤ 50 mV and VOH ≥ 8.2 V at VCC = 10 V |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground output swing | Enables single-supply operation with true 0 V output capability-critical for interfacing with ADCs and logic-level sensors |
| Unity-gain stable design | Eliminates need for external compensation components in buffer, follower, or gain-of-one configurations |
| Capacitive-load phase margin ≥40° | Ensures stable operation driving long traces, cables, or piezoelectric transducers without peaking or ringing |
| Low input bias current (1–300 pA) | Minimizes voltage error across high-impedance sources (e.g., pH electrodes, photodiode TIA feedback) |
| Four independent amplifiers in one package | Reduces PCB area and BOM count in multi-stage signal chains (e.g., instrumentation amp + filter + driver) |
Applications
| Instrumentation Signal Conditioning | Active Low-Pass Filtering |
|---|---|
Use Scenario: Amplifying microvolt-level thermocouple or strain gauge outputs in data acquisition modules. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with precision gain setting and low-noise buffering. Use Value: Input bias current ≤300 pA avoids loading high-Z sensor bridges; 65–80 dB CMRR rejects power-line interference in noisy industrial environments. | Use Scenario: Implementing 4th-order anti-aliasing filters before SAR ADCs in motor control systems. IC Role / Device Role / Timing Role: Quad op-amp configured as cascaded 2nd-order Sallen-Key stages. Use Value: Unity-gain stability and 3.5 MHz GBP support precise cutoff frequencies up to 100 kHz with minimal component count. |
| Single-Supply Sensor Interface | Multi-Channel Analog Front-End |
Use Scenario: Biasing and amplifying output of 0–5 V pressure transducers powered from 5 V rail. IC Role / Device Role / Timing Role: Rail-to-ground output stage driving ADC reference inputs or level-shifting circuits. Use Value: Output swing to ground eliminates need for negative supply, simplifying power architecture and reducing system cost. | Use Scenario: Simultaneous acquisition of four analog sensor signals (temperature, humidity, voltage, current) in environmental monitoring nodes. IC Role / Device Role / Timing Role: Four independent amplifiers performing parallel signal conditioning prior to multiplexed ADC sampling. Use Value: Channel separation >120 dB prevents inter-channel crosstalk; matched DC specs ensure consistent calibration across all channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV914IDT | Rail-to-rail I/O, lower Vio (1.5 mV max), higher GBP (8 MHz), 2.5–5.5 V supply only | Better suited for low-voltage (3.3 V) precision apps; not rated for >5.5 V or industrial temp extremes | Select when operating below 5.5 V and requiring sub-mV offset or faster settling |
| LM324DT | Bipolar input, higher Iib (20–250 nA), lower GBP (1.2 MHz), wider VCC (3–32 V), no rail-to-ground output | More robust for high-voltage industrial control; unsuitable for high-Z sensor interfaces | Select for cost-sensitive 12–24 V systems where input bias and offset are less critical |
Compared with TSV914IDT and LM324DT, TS274CDT uniquely balances wide supply range (3–16 V), rail-to-ground output, low input current (≤300 pA), and industrial temperature rating-making it optimal for mixed-voltage, high-impedance sensor signal chains where bipolar alternatives introduce unacceptable DC errors.
Availability
TS274CDT is available at Aetrix Electronics and suitable for instrumentation signal conditioning, active filtering, single-supply sensor interface, and multi-channel analog front-end designs requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TS274CDT 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, delivering innovative solutions across automotive, industrial, power, and analog markets since 1987.
The TS274 belongs to ST's legacy high-performance CMOS op-amp product line, engineered specifically for low-power, high-input-impedance analog signal processing in industrial and measurement equipment where JFET alternatives exhibit excessive temperature drift.
FAQ
Is TS274CDT pin-compatible with LM324 or TL074?
No. TS274CDT uses standard quad op-amp pinout (SO-14), matching LM324 and TL074 pin-for-pin for power and input/output terminals. However, its CMOS input stage differs fundamentally from LM324's bipolar and TL074's JFET inputs-requiring verification of input bias current, common-mode range, and supply voltage compatibility in existing designs.
What is the maximum capacitive load TS274CDT can drive without instability?
TS274CDT maintains ≥40° phase margin driving up to 100 pF capacitive loads with 10 kΩ series resistance, as confirmed in Figure 10 of the datasheet. For loads exceeding 100 pF, a 10–100 Ω isolation resistor in series with the output is recommended to preserve stability.
Does TS274CDT support true rail-to-rail input?
No. TS274CDT features rail-to-ground output swing but has a limited common-mode input voltage range of 0 V to VCC − 1.5 V (per Table 3). It does not accept inputs within 1.5 V of the positive rail, distinguishing it from modern rail-to-rail input/output op-amps like TSV914.
Can TS274CDT operate from a single 3.3 V supply?
Yes. The device is specified for VCC = 3–16 V (Table 3), and functional operation at 3.3 V is confirmed in Figures 11–12. However, output swing will be reduced (VOH ≈ 1.8 V, VOL ≈ 0.1 V), and GBP drops to ~1.5 MHz-verify gain-bandwidth and output headroom requirements for the target application.
TS274CDT 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:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 5.5V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- 45 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
TS274CDT FAQ
1.How can I place an order for TS274CDT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS274CDT 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 TS274CDT reliable?
The price and inventory of TS274CDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS274CDT is usually 5 days.
3.What payment methods are accepted for TS274CDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS274CDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS274CDT?
TS274CDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS274CDT 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 TS274CDT?
For technical support, including TS274CDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS274CDT requirements.
6.How does Aetrix verify that TS274CDT is sourced from the original manufacturer or authorized distributors?
All TS274CDT 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 TS274CDT meets industry standards.
7.What is the process for return or replacement of TS274CDT?
All TS274CDT units undergo pre-shipment inspection (PSI). If there is an issue with TS274CDT, 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 TS274CDT part is unused and in its original packaging.
Return procedure for TS274CDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS274CDT Tags
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