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STMicroelectronics MC33174DT
- Part No.:
- MC33174DT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC33174DT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:53,393
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Product details
Overview
MC33174DT from STMicroelectronics is a quad bipolar operational amplifier optimized for low-power, rail-to-rail input (down to VCC–) operation across wide supply ranges (+4V to +44V single or ±2V to ±22V dual), delivering 2.1 MHz gain-bandwidth, 2 V/µs slew rate, and only 200 µA quiescent current per amplifier-enabling precision signal conditioning in battery-powered industrial sensors and 24V PLC analog I/O modules.
For engineers reviewing the MC33174DT datasheet, MC33174DT pinout, MC33174DT application, or MC33174DT equivalent, key selection criteria include input common-mode range extending to VCC–, 100 mV typical low-level output voltage swing, 120 dB channel separation, and SO-14 package compatibility with legacy quad op-amp footprints.
Technical Context
The MC33174DT integrates four independent bipolar-input op-amps sharing a common die, each featuring Class AB output stage with rail-swing capability down to 100 mV above VCC–. Its input stage operates with common-mode voltage down to VCC–, enabling true single-supply use without level-shifting circuitry.
Designed for stability with 100 pF capacitive loads, it achieves 45° phase margin and 2.1 MHz GBP at unity-gain configuration. Input bias current remains below 200 nA over –40°C to +105°C, supporting high-impedance sensor interfaces without significant DC error drift.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +4V to +44V single supply or ±2V to ±22V dual supply - supports direct interfacing with 24V industrial buses and 5V microcontrollers |
| Quiescent Current | 200 µA per amplifier - enables four-channel analog front-end operation within 1 mA total budget for portable instrumentation |
| Gain-Bandwidth Product | 2.1 MHz - sufficient for anti-aliasing filters up to ~200 kHz and closed-loop gain of 10 at 200 kHz |
| Slew Rate | 2 V/µs - ensures <1% distortion on 10 kHz sine waves at 10 VPP output swing |
| Input Common-Mode Range | VCC– to (VCC+ − 1.8 V) - allows direct sensing of ground-referenced signals in single-supply systems |
| Channel Separation | 120 dB - prevents crosstalk between adjacent channels in multi-sensor data acquisition |
| Output Voltage Swing | Within 100 mV of VCC– and 400 mV of VCC+ - maximizes dynamic range in low-voltage single-supply configurations |
Pinout & Package
MC33174DT is housed in a 14-pin plastic micropackage (SO-14), compliant with JEDEC MS-012, with 1.27 mm pitch and gull-wing leads. The package supports surface-mount reflow and offers thermal resistance θJA = 125°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input, Amp A | High-impedance differential input node for first amplifier channel; accepts signals down to VCC– |
| 2 | Non-inverting Input, Amp A | Second high-Z input for Amp A; enables standard inverting/non-inverting configurations |
| 3 | Output, Amp A | Class AB output capable of sourcing/sinking ±15 mA; swings within 100 mV of VCC– |
| 4 | VCC– | Negative supply rail connection; also serves as reference for input common-mode range |
| 5 | Inverting Input, Amp B | Dedicated input for second amplifier; electrically isolated from other channels |
| 6 | Non-inverting Input, Amp B | Independent input for Amp B; shares no internal nodes with Amp A or C |
| 7 | Output, Amp B | Buffered output with same drive strength and swing limits as Amp A |
| 8 | Output, Amp C | Third independent output; identical AC/DC specs to Amp A and B |
| 9 | Non-inverting Input, Amp C | Input for third channel; supports high-Z sensor buffering without loading |
| 10 | Inverting Input, Amp C | Inverting node for Amp C; usable in transimpedance or difference amplifier topologies |
| 11 | VCC+ | Positive supply rail; defines upper limit of input common-mode and output swing |
| 12 | Inverting Input, Amp D | Fourth amplifier input; fully isolated for multi-channel isolation-critical designs |
| 13 | Non-inverting Input, Amp D | Final input channel; enables simultaneous 4-channel signal conditioning |
| 14 | Output, Amp D | Fourth buffered output; maintains 120 dB channel separation from others |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (down to VCC–) | Enables direct interface with ground-referenced transducers and 0–5 V DAC outputs without level shifters |
| Low quiescent current (200 µA/amplifier) | Supports always-on 4-channel analog monitoring in energy-constrained edge nodes |
| High channel separation (120 dB) | Maintains signal integrity in multi-channel data loggers where adjacent traces share return paths |
| Stable with 100 pF load | Eliminates need for external isolation resistors when driving ADC input capacitors or long PCB traces |
| Wide supply range (+4V to +44V) | Permits direct operation from unregulated 24V industrial rails or split ±15V lab supplies |
Applications
| Industrial Sensor Signal Conditioning | PLC Analog Input Modules |
|---|---|
Use Scenario: Amplifying low-level mV outputs from RTD, thermocouple, or strain gauge bridges in factory-floor environments with 24V DC power rails. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential amplifiers and two buffer stages for simultaneous temperature and pressure signal processing. Use Value: Input common-mode range extending to VCC– eliminates level-shifting components; 200 µA per channel reduces self-heating in sealed enclosures. | Use Scenario: Providing isolated, calibrated 4–20 mA loop receiver front-ends in modular programmable logic controllers. IC Role / Device Role / Timing Role: Four independent amplifiers used for current-to-voltage conversion, offset trimming, filtering, and output buffering per channel. Use Value: 120 dB channel separation prevents cross-talk between adjacent I/O slots; SO-14 footprint matches legacy designs for drop-in replacement. |
| Battery-Powered Data Loggers | Automotive Body Control Units |
Use Scenario: Signal conditioning for multi-sensor environmental monitoring (humidity, CO₂, light) in portable field instruments powered by Li-ion cells. IC Role / Device Role / Timing Role: Quad amplifier used for sensor excitation, signal gain, anti-aliasing filtering, and ADC driver functions. Use Value: 200 µA quiescent current per amplifier enables >1-year battery life in sleep-wake cycles; rail-swing output maximizes SNR into 12-bit ADCs. | Use Scenario: Signal amplification and level translation for cabin temperature, seat position, and ambient light sensors in 12V automotive systems. IC Role / Device Role / Timing Role: Four amplifiers deployed for HVAC sensor interfaces, window motor feedback, mirror position detection, and LED dimming control. Use Value: Operation from +4V to +44V covers cold-crank (6.5V) to load-dump (40V) transients; –40°C to +105°C rating meets AEC-Q100 Grade 2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DT | Higher quiescent current (1.2 mA per amp), lower GBP (1.2 MHz), no guaranteed operation below +3V supply | Less suitable for battery-powered designs requiring sub-1 mA total analog front-end current | Select LM324DT only if cost is primary constraint and supply voltage exceeds +5V with relaxed speed requirements |
| TLV2464IDR | Rail-to-rail input/output, lower noise (22 nV/√Hz), but higher supply current (600 µA/amp) and narrower supply range (2.7–6 V) | Not viable for 24V industrial or automotive 12V systems due to 6V max supply rating | Choose TLV2464IDR only for low-voltage, low-noise portable applications where 24V compatibility is unnecessary |
Compared with LM324DT and TLV2464IDR, MC33174DT uniquely balances ultra-low power (200 µA), wide supply range (+4V to +44V), and rail-to-rail input capability-making it the only option among the three qualified for both 24V PLC I/O and long-life battery sensors.
Availability
MC33174DT is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, PLC analog input modules, and battery-powered data loggers requiring stable component supply across extended temperature and voltage ranges.
Supply support for MC33174DT 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, designing and manufacturing microcontrollers, power ICs, analog chips, and MEMS sensors for industrial, automotive, and consumer markets.
The MC3x174 series was developed specifically for industrial analog signal chains requiring robust performance across wide temperature and supply ranges while minimizing power consumption in multi-channel systems.
FAQ
Is MC33174DT pin-compatible with standard quad op-amps in SO-14 packages?
Yes, MC33174DT uses the industry-standard SO-14 footprint (1.27 mm pitch) and matches the pinout of LM324, TL074, and NE5534 in SO-14 variants. Pin 1 is Inverting Input of Amp A, Pin 14 is Output of Amp D, and VCC+/VCC– align with conventional quad op-amp assignments-enabling direct PCB replacement without layout changes.
What is the minimum recommended supply voltage for reliable operation?
The absolute minimum supply voltage is +4V for single-supply operation or ±2V for dual-supply use, as specified in the Absolute Maximum Ratings table. Below +4V, input common-mode range and output swing degrade, and guaranteed performance (e.g., GBP, SR) is not maintained per datasheet electrical characteristics.
Does MC33174DT require external compensation for unity-gain stability?
No, MC33174DT is internally compensated and stable at unity gain with capacitive loads up to 100 pF. The datasheet confirms 45° phase margin under standard test conditions (RL = 10 kΩ, CL = 100 pF), eliminating need for external compensation networks in typical sensor amplifier or buffer configurations.
How does input offset voltage drift behave over temperature?
MC33174DT exhibits a typical input offset voltage drift of 10 µV/°C, measured across the full operating range (–40°C to +105°C). This drift value is specified in the Electrical Characteristics table and remains consistent regardless of supply voltage or common-mode input level, supporting precision DC-coupled applications like bridge amplifier zeroing.
MC33174DT 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:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 2.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 220µA
- Current - Output / Channel:
- 27 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
MC33174DT FAQ
1.How can I place an order for MC33174DT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33174DT 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 MC33174DT reliable?
The price and inventory of MC33174DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33174DT is usually 5 days.
3.What payment methods are accepted for MC33174DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33174DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33174DT?
MC33174DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33174DT 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 MC33174DT?
For technical support, including MC33174DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33174DT requirements.
6.How does Aetrix verify that MC33174DT is sourced from the original manufacturer or authorized distributors?
All MC33174DT 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 MC33174DT meets industry standards.
7.What is the process for return or replacement of MC33174DT?
All MC33174DT units undergo pre-shipment inspection (PSI). If there is an issue with MC33174DT, 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 MC33174DT part is unused and in its original packaging.
Return procedure for MC33174DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC33174DT Tags
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LM358DT
STMicroelectronics
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LM358ADR
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LM2904DGKR
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MCP6006UT-E/OT
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