My Inquiry
My Account
Texas Instruments UA741CPS
- Part No.:
- UA741CPS
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
UA741CPS.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:2,300
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
UA741CPS from Texas Instruments is a single-channel general-purpose operational amplifier with offset-voltage null capability, ±15 V supply voltage rating, 0.5 V/µs slew rate, and 1 MHz gain-bandwidth product, designed for voltage-follower, inverting amplifier, and active filter circuits operating from 0°C to 70°C.
For engineers reviewing the UA741CPS datasheet, UA741CPS pinout, UA741CPS application, or UA741CPS equivalent, key selection considerations include input offset voltage (≤6 mV at 25°C), short-circuit protection, internal frequency compensation, and compatibility with Fairchild µA741-based legacy designs.
Technical Context
The UA741CPS implements a classic bipolar-input op-amp architecture with 22 transistors and 11 resistors, featuring no external frequency compensation requirement due to internal dominant-pole compensation. Its high common-mode input voltage range (±12 V) and absence of latch-up enable stable operation in unity-gain buffer configurations.
Offset voltage adjustment is supported via dedicated OFFSET N1 and OFFSET N2 terminals, allowing manual nulling using a 10 kΩ potentiometer. The device delivers ±12 V output swing into 10 kΩ load and ±10 V into 2 kΩ load under ±15 V supplies, with open-loop gain ≥86 dB and CMRR ≥70 dB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±7 V to ±18 V - supports dual-rail operation across industrial and lab power supplies |
| Input Offset Voltage (25°C) | ≤6 mV - enables precision DC-coupled amplification without trimming in non-critical applications |
| Slew Rate | 0.5 V/µs - limits large-signal bandwidth to ~80 kHz for 10 Vpp output, suitable for audio and sensor conditioning |
| Gain-Bandwidth Product | 1 MHz - defines unity-gain stable operation and sets closed-loop bandwidth inversely with gain |
| Common-Mode Input Range | ±12 V - allows rail-to-rail input signal handling relative to supply mid-point |
| Output Short-Circuit Current | ±25 mA - provides robust fault tolerance without external current limiting |
| Quiescent Current | 1.7 mA typical - enables low-power operation in battery-backed instrumentation |
Pinout & Package
UA741CPS is supplied in an 8-pin plastic DIP (P) package with through-hole mounting and 0.3-inch body width. Pin 1 is OFFSET N1, pin 2 is IN–, pin 3 is IN+, pin 4 is VCC–, pin 5 is OFFSET N2, pin 6 is OUT, pin 7 is VCC+, and pin 8 is NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null 1 | Connects to one end of 10 kΩ potentiometer for input offset voltage trimming |
| 2 | Inverting Input | Primary feedback node in inverting amplifier configurations |
| 3 | Non-Inverting Input | Reference input for voltage-follower and non-inverting gain stages |
| 4 | Negative Supply | Ground reference for dual-supply operation; must be ≤ –7 V for full specification compliance |
| 5 | Offset Null 2 | Connects to other end of 10 kΩ potentiometer; center wiper ties to VCC– |
| 6 | Output | Class-B push-pull stage capable of ±25 mA short-circuit current |
| 7 | Positive Supply | Power rail for dual-supply operation; must be ≥ +7 V for full specification compliance |
| 8 | No Connection | Internally unconnected; must remain floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Internal Frequency Compensation | Enables stable unity-gain operation without external capacitor, reducing BOM count and layout complexity |
| Offset-Voltage Null Capability | Allows manual calibration of input offset error down to <1 mV using external potentiometer |
| Short-Circuit Protection | Prevents thermal runaway during output faults, eliminating need for series current-limiting resistors |
| No Latch-Up Behavior | Ensures reliable recovery after overvoltage or phase-reversal events in high-impedance sensor interfaces |
| Large Common-Mode Range | Supports direct connection to signals referenced to either supply rail in differential-to-single-ended conversion |
Applications
| DC Precision Instrumentation | Voltage-Follower Buffer |
|---|---|
|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in data acquisition systems requiring stable DC gain and minimal drift. IC Role / Device Role / Timing Role: Single-supply or dual-supply DC-coupled amplifier with offset nulling for sub-mV signal conditioning. Use Value: 6 mV max input offset and 70 dB CMRR suppress common-mode noise in 50/60 Hz environments without chopper stabilization. |
Use Scenario: Isolating high-impedance sensor outputs (e.g., pH probes, photodiode transimpedance stages) from downstream ADC input loading. IC Role / Device Role / Timing Role: Unity-gain buffer with high input impedance (>300 kΩ) and low output impedance (<75 Ω) to preserve signal integrity. Use Value: Absence of latch-up and ±12 V output swing into 10 kΩ ensure reliable buffering of rail-referenced analog signals. |
| Active Filter Design | Industrial Signal Conditioning |
|
Use Scenario: Implementing second-order low-pass or band-pass filters in process control loop feedback paths. IC Role / Device Role / Timing Role: Gain stage in Sallen-Key or multiple-feedback topologies with fixed 1 MHz GBW defining cutoff accuracy. Use Value: Internal compensation and 0.5 V/µs slew rate limit usable filter bandwidth to ≤100 kHz, avoiding instability in multi-pole designs. |
Use Scenario: Converting 4–20 mA current loop signals to 0–5 V or ±10 V voltage levels in PLC analog input modules. IC Role / Device Role / Timing Role: Transimpedance amplifier or level-shifting stage with short-circuit protection against field wiring faults. Use Value: ±25 mA short-circuit current rating and unlimited short-circuit duration protect against accidental 24 V shorts in industrial wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM741CP | Identical pinout and electrical specs; manufactured by ON Semiconductor with same TI-originated design | No functional difference; qualified for same temperature range (0°C to 70°C) and package (PDIP-8) | Select LM741CP when dual-sourcing is required or TI supply lead times exceed 8 weeks |
| TL081CP | JFET-input architecture: higher input impedance (10¹² Ω vs 0.3 MΩ), lower input bias current (30 pA vs 500 nA), but no offset null pins | Better for high-Z sensor interfaces; unsuitable where manual offset trimming is mandatory | Choose TL081CP for low-noise, high-impedance applications; retain UA741CPS where nulling or legacy footprint compatibility is critical |
Compared with LM741CP, UA741CPS offers identical functionality and drop-in compatibility; versus TL081CP, UA741CPS trades input impedance for offset adjustability and proven robustness in noisy industrial environments.
Availability
UA741CPS is available at Aetrix Electronics and suitable for DC instrumentation, voltage buffering, active filtering, and industrial signal conditioning requiring stable component supply across long-lifecycle embedded programs.
Supply support for UA741CPS 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 U.S.-based semiconductor company founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, automotive, and aerospace markets.
UA741CPS belongs to TI's legacy general-purpose op-amp product line, engineered for broad compatibility, ease of use, and long-term manufacturability in cost-sensitive analog signal chains.
FAQ
What is the operating temperature range for UA741CPS?
The UA741CPS is characterized for operation from 0°C to 70°C ambient temperature. This commercial-grade rating aligns with standard lab and office environments. It does not support extended industrial (–40°C to 85°C) or military (–55°C to 125°C) ranges - those require UA741I or UA741M variants respectively. Always verify ambient and junction temperature limits using the dissipation rating table in the datasheet.
Does UA741CPS require external frequency compensation?
No, UA741CPS does not require external frequency compensation. It features internal dominant-pole compensation, enabling stable unity-gain operation without added capacitors. This simplifies circuit design and eliminates tuning steps - a key differentiator from uncompensated op-amps like the LM301. The internal compensation ensures phase margin >45° across all specified loads and supply conditions.
How do I connect the offset null pins on UA741CPS?
Connect a 10 kΩ potentiometer between UA741CPS pins 1 (OFFSET N1) and 5 (OFFSET N2), with the wiper tied to pin 4 (VCC–). Adjusting the potentiometer nulls input offset voltage to <1 mV. This configuration matches Figure 2 in the official datasheet and is validated for both room-temperature and full-range operation. Avoid floating either null pin - doing so degrades offset stability.
Is UA741CPS pin-compatible with Fairchild µA741?
Yes, UA741CPS is explicitly designed to be interchangeable with Fairchild µA741 in PDIP-8 packaging. Pin assignments, electrical specifications, and thermal characteristics match within datasheet tolerances. This interchangeability is confirmed in the "Designed to Be Interchangeable With Fairchild µA741" feature statement and supported by identical absolute maximum ratings and test conditions across both manufacturers' documentation.
What is the maximum load capacitance UA741CPS can drive without oscillation?
UA741CPS can safely drive up to 100 pF of capacitive load without external compensation, as verified in the rise time and overshoot test conditions (RL = 2 kΩ, CL = 100 pF). Driving >100 pF risks instability - for larger loads, add a 10–100 Ω isolation resistor in series with the output. This limitation arises from the internal compensation network's fixed pole placement and is consistent across all µA741-family devices.
UA741CPS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1.7mA
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
UA741CPS FAQ
1.How can I place an order for UA741CPS through Aetrix?
Please submit a Request for Quotation (RFQ) for UA741CPS 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 UA741CPS reliable?
The price and inventory of UA741CPS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for UA741CPS is usually 5 days.
3.What payment methods are accepted for UA741CPS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for UA741CPS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for UA741CPS?
UA741CPS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your UA741CPS 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 UA741CPS?
For technical support, including UA741CPS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your UA741CPS requirements.
6.How does Aetrix verify that UA741CPS is sourced from the original manufacturer or authorized distributors?
All UA741CPS 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 UA741CPS meets industry standards.
7.What is the process for return or replacement of UA741CPS?
All UA741CPS units undergo pre-shipment inspection (PSI). If there is an issue with UA741CPS, 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 UA741CPS part is unused and in its original packaging.
Return procedure for UA741CPS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
UA741CPS Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
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…
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…
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…
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…
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…
