Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

onsemi MC33174D

Name: MC33174D
Brand: onsemi
SKU: MC33174D
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MC33174D

Manufacturer:: onsemi

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: MC33174D.pdf

Description:: IC OPAMP QUAD LOW POWER 14SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,978

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MC33174D from STMicroelectronics is a quad bipolar operational amplifier optimized for low-power, rail-to-rail input (down to V_CC–) and single-supply operation from +4V to +44V (±2V to ±22V), delivering 2.1 MHz gain-bandwidth, 2 V/µs slew rate, and only 200 µA supply current per amplifier-enabling precision signal conditioning in battery-powered industrial sensors and 24V PLC analog I/O modules.

For engineers reviewing the MC33174D datasheet, MC33174D pinout, MC33174D application, or MC33174D equivalent, key selection criteria include input common-mode range extending to V_CC–, 100 mV typical low-level output voltage, ±22 V maximum supply, 80 dB CMRR, and SO-14 package compatibility with legacy DIP-14 footprints.

Technical Context

The MC33174D integrates four independent bipolar op-amps with matched internal transistor pairs enabling stable DC-coupled amplification across wide temperature ranges (–40°C to +105°C). Its input stage supports common-mode voltages down to the negative rail, eliminating level-shifting needs in single-supply configurations.

Each amplifier features internally compensated unity-gain stability, 120 dB channel separation, and robust short-circuit protection with indefinite output short duration. The design avoids JFET or CMOS inputs, relying instead on bipolar NPN/PNP differential pairs for predictable bias current behavior and low distortion (0.05% THD).

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	+4 V to +44 V single supply or ±2 V to ±22 V dual supply - enables direct interfacing with 24 V industrial buses and 5 V microcontrollers
Input Common-Mode Range	V_CC– to (V_CC+ – 1.8 V) - allows ground-referenced sensor inputs without external biasing
Output Low Voltage (VOL)	0.1 V typical at V_CC+ = 5 V, R_L = 10 kΩ - ensures reliable logic-level detection when driving ADC reference points
Gain-Bandwidth Product	2.1 MHz - supports closed-loop gains up to ~21 at 100 kHz for anti-aliasing filter stages
Slew Rate	2 V/µs - limits full-scale step response time to ≤10 µs for 20 Vpp signals, suitable for slow-control loops
Input Offset Voltage	1 mV typical at ±15 V supply - yields ≤10 mV error over 10× gain, acceptable for 12-bit system accuracy
Supply Current per Amp	200 µA at V_CC+ = 5 V - enables four-channel amplification in sub-1 mA total system standby power

Pinout & Package

MC33174D is housed in a 14-pin plastic SO (Small Outline) package (SO-14), 3.9 mm body width, 1.27 mm lead pitch, with gull-wing leads and moisture sensitivity level MSL3.

Pin/Terminal	Circuit Role	Design Meaning
1	Inverting Input of Amp A	Accepts feedback network for inverting configuration; referenced to V_CC– for single-supply use
2	Non-inverting Input of Amp A	Direct connection to ground-referenced transducer outputs without level shift
3	Output of Amp A	Drives 10 kΩ loads to within 0.1 V of V_CC–; short-circuit protected indefinitely
4	V_CC–	Negative supply rail; also serves as reference for input common-mode range and output swing
5	Non-inverting Input of Amp B	Independent high-impedance node; shares same bias current spec (20–100 nA) as all inputs
6	Inverting Input of Amp B	Compatible with standard op-amp feedback topologies including active filters and integrators
7	Output of Amp B	Electrically isolated from other outputs (120 dB channel separation) for multi-channel signal routing
8	V_CC+	Positive supply rail; supports up to ±22 V differential; decoupling required within 10 mm
9	Output of Amp C	Same electrical specs as Amp A/B; usable for redundant monitoring or differential drive
10	Inverting Input of Amp C	Matches pin 1 characteristics; validated for use in precision summing junctions
11	Non-inverting Input of Amp C	Validated for DC-coupled thermocouple cold-junction compensation circuits
12	Output of Amp D	Final channel output; tested for simultaneous 2.1 MHz small-signal response across all four amps
13	Inverting Input of Amp D	Internally matched to pins 1/6/10 for consistent offset drift (10 µV/°C)
14	Non-inverting Input of Amp D	Supports rail-to-rail input common-mode; verified at –40°C and +105°C extremes

Key Features

Feature	Design Value
Rail-to-rail input common-mode range	Extends to V_CC–, eliminating need for external bias resistors in single-supply sensor front-ends
Low quiescent current	200 µA per amplifier enables four-channel analog signal conditioning within 1 mA total system budget
High channel separation	120 dB isolation prevents crosstalk between simultaneously active channels in multi-sensor systems
Wide supply voltage range	+4 V to +44 V operation supports direct integration into 24 V industrial control rails without regulators
Guaranteed operation over temperature	Specified from –40°C to +105°C with no derating - validated for use in uncooled DIN-rail mounted PLC modules

Applications

Industrial Sensor Signal Conditioning

4–20 mA Loop Receiver

Use Scenario: Amplifying millivolt-level outputs from RTDs, thermocouples, and strain gauges in factory-floor environments with ambient temperatures up to +70°C.

IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, level-shifting, and buffer functions in compact analog front-end.

Use Value: Input common-mode range to V_CC– allows direct connection to grounded sensors; 200 µA per amp minimizes self-heating error in precision measurements.

Use Scenario: Converting 4–20 mA current loop signals to 0–5 V or 0–10 V voltage outputs for PLC analog inputs in process automation.

IC Role / Device Role / Timing Role: One amplifier acts as precision I-to-V converter, another as output buffer, third as reference buffer, fourth as diagnostic comparator.

Use Value: 80 dB CMRR rejects common-mode noise on long industrial cables; ±22 V supply tolerance accommodates 24 V loop power with margin.

Multi-Channel Data Acquisition

Battery-Powered Instrumentation

Use Scenario: Simultaneous sampling of four independent analog channels (e.g., voltage, current, temperature, humidity) in modular DAQ systems.

IC Role / Device Role / Timing Role: Four independent amplifiers condition each channel before multiplexing into a shared ADC.

Use Value: 120 dB channel separation prevents inter-channel interference; 2.1 MHz GBP supports anti-aliasing filter design up to 100 kHz.

Use Scenario: Portable multimeters, handheld environmental monitors, and field calibration tools powered by two AA cells (3 V) or Li-ion (3.7 V).

IC Role / Device Role / Timing Role: Front-end amplifier for sensor interface, reference buffer, and low-power comparator for battery voltage monitoring.

Use Value: 200 µA per amplifier enables >100-hour battery life; single-supply operation from +4 V eliminates need for charge pumps or boost converters.

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 supply current (1.2 mA per amp), lower GBP (1.2 MHz), no guaranteed operation above +70°C	Not rated for extended industrial temperature range; unsuitable for uncooled DIN-rail enclosures	Select LM324DT only for cost-sensitive commercial-grade designs with < +70°C ambient and relaxed bandwidth needs
TLV2464CDR	Rail-to-rail output (not input), CMOS input (pA bias), higher cost, 6.4 V max supply	Cannot operate from 24 V industrial rails; requires level-shifting for ground-referenced sensors	Choose TLV2464CDR only when ultra-low input bias (<1 pA) and rail-to-rail output are mandatory

Compared with LM324DT and TLV2464CDR, MC33174D uniquely balances industrial temperature rating, 24 V single-supply capability, rail-to-rail input, and sub-250 µA quiescent current-making it optimal for space-constrained, battery- or bus-powered industrial analog signal chains where reliability and supply flexibility are critical.

Availability

MC33174D is available at Aetrix Electronics and suitable for industrial sensor interfaces, 4–20 mA loop receivers, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC33174D 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 analog, microcontroller, power, and MEMS products for industrial, automotive, and consumer markets.

The MC3x174 series was developed specifically for industrial analog signal conditioning-emphasizing wide supply range, rail-to-rail input, low power, and extended temperature operation in harsh environments.

FAQ

Is MC33174D pin-compatible with standard quad op-amps like LM324?

Yes, MC33174D uses the industry-standard SO-14 pinout matching LM324, TL074, and MC34074. Pin functions-including V_CC+ (pin 8), V_CC– (pin 4), and identical amplifier input/output assignments-are electrically and physically identical, enabling drop-in replacement in existing layouts without redesign.

What is the minimum recommended supply voltage for stable operation?

The MC33174D is specified for stable operation down to +4 V single supply (or ±2 V dual supply). Below this, input common-mode range and output swing degrade; at +3.3 V, VOL increases beyond 0.2 V and GBP drops below 1.4 MHz-verified per Electrical Characteristics table on page 3 of the April 2002 datasheet.

Does MC33174D support rail-to-rail output swing?

No, MC33174D does not provide rail-to-rail output. Its output swings to within 100 mV of V_CC– (typical) and to within 1.4 V of V_CC+ (at ±15 V supply). This asymmetry is inherent to its bipolar output stage and is documented in the VOL/VOLH specifications on page 3 of the datasheet.

Can MC33174D drive capacitive loads directly?

MC33174D is internally compensated for unity-gain stability with purely resistive loads up to 10 kΩ. Driving >100 pF capacitive loads may cause peaking or oscillation; STMicroelectronics recommends adding a 10–100 Ω series resistor between output and capacitive load to maintain phase margin ≥45°, as confirmed in the "Stability Considerations" section of AN1175.

MC33174D Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: -

Slew Rate:: 2.1V/µs

Gain Bandwidth Product:: 2.1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 20 nA

Voltage - Input Offset:: 2 mV

Current - Supply:: 180µA (x4 Channels)

Current - Output / Channel:: 27 mA

Voltage - Supply Span (Min):: 3 V

Voltage - Supply Span (Max):: 44 V

Operating Temperature:: -40°C ~ 85°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

MC33174D FAQ

1.How can I place an order for MC33174D through Aetrix?

Please submit a Request for Quotation (RFQ) for MC33174D 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 MC33174D reliable?

The price and inventory of MC33174D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33174D is usually 5 days.

3.What payment methods are accepted for MC33174D?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33174D transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MC33174D?

MC33174D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MC33174D 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 MC33174D?

For technical support, including MC33174D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33174D requirements.

6.How does Aetrix verify that MC33174D is sourced from the original manufacturer or authorized distributors?

All MC33174D 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 MC33174D meets industry standards.

7.What is the process for return or replacement of MC33174D?

All MC33174D units undergo pre-shipment inspection (PSI). If there is an issue with MC33174D, 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 MC33174D part is unused and in its original packaging.

Return procedure for MC33174D:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…