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Analog Devices Inc./Maxim Integrated MAX4105EUK-T
- Part No.:
- MAX4105EUK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4105EUK-T.pdf
- Description:
- IC OPAMP VFB 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,345
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Product details
Overview
MAX4105EUK-T from Maxim Integrated is a unity-gain-unstable, high-speed voltage-feedback operational amplifier optimized for minimum closed-loop gain of +5V/V, delivering 410MHz -3dB bandwidth, 1400V/µs slew rate, and 2.1nV/√Hz input voltage noise density. It operates on ±3.5V to ±5.5V dual supplies, draws 27mA quiescent current, and drives ±70mA into loads - ideal for video ADC preamplification and high-fidelity cable driver stages.
For engineers reviewing the MAX4105EUK-T datasheet, MAX4105EUK-T pinout, MAX4105EUK-T application, or MAX4105EUK-T equivalent, this page provides verified technical context, validated pin functions, confirmed SOT23-5 package mapping, real-world AC/DC specifications, and two rigorously cross-checked alternative op amps for +5V/V gain-stable high-speed designs.
Technical Context
The MAX4105EUK-T employs a voltage-feedback architecture with internal compensation tailored for stable operation only at closed-loop gains ≥+5V/V. Its 410MHz bandwidth and 100MHz 0.1dB gain flatness are measured under AVCL = +5V/V, RL = 100Ω, VCC = +5V/VEE = -5V conditions.
It achieves -88dBc spurious-free dynamic range at 5MHz (RL = 100Ω), 0.01% differential gain error, and 0.01° differential phase error - confirming suitability for NTSC/PAL video signal conditioning and precision high-speed data acquisition front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 410MHz at AVCL = +5V/V - defines usable small-signal frequency range before 3dB attenuation |
| Slew Rate | 1400V/µs - enables clean 2Vp-p output swing up to ~115MHz full-power bandwidth |
| Voltage Noise Density | 2.1nV/√Hz at 1MHz - sets fundamental SNR floor for low-amplitude signal amplification |
| Input Offset Voltage | ±1mV max - contributes ≤5mV output error in +5V/V gain configuration |
| Output Current Drive | ±70mA - supports direct drive of 100Ω video loads or heavy capacitive back-termination |
| Supply Range | ±3.5V to ±5.5V - allows operation from standard ±5V rails with ±0.5V headroom margin |
| Quiescent Current | 27mA - balances speed/power for space-constrained high-performance analog stages |
Pinout & Package
MAX4105EUK-T is housed in a 5-pin SOT23-5 surface-mount package with exposed pad (not electrically connected), footprint compatible with JEDEC MO-178AB. Pin 1 is marked by a dot or beveled edge; device orientation follows standard SOT23 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Low-impedance buffered output capable of ±70mA sink/source into 100Ω loads |
| 2 (IN+) | Noninverting Input | High-impedance node (1.5MΩ common-mode, 6kΩ differential) for reference or signal input |
| 3 (IN-) | Inverting Input | Feedback node; requires matched layout to IN+ to minimize DC offset drift |
| 4 (VEE) | Negative Power Supply | Connects to -3.5V to -5.5V rail; substrate tied internally to VEE per chip info |
| 5 (VCC) | Positive Power Supply | Connects to +3.5V to +5.5V rail; bypass with 1nF + 0.1µF ceramic caps placed <1mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| +5V/V minimum stable gain | Enables higher closed-loop bandwidth than unity-gain-stable alternatives at same supply current |
| 100MHz 0.1dB gain flatness | Preserves amplitude integrity across baseband video and broadband IF signals |
| 0.01% / 0.01° differential gain/phase | Meets broadcast-grade NTSC/PAL linearity requirements without external calibration |
| Drives 10pF capacitive load unstably | Supports direct connection to short PCB traces or termination networks without isolation resistor |
| Low ±1mV input offset voltage | Reduces DC error propagation in multi-stage gain blocks with >+5V/V total gain |
Applications
| Video ADC Preamp | Pulse/RF Telecom Applications |
|---|---|
Use Scenario: Amplifying analog video signals prior to digitization in high-speed 10–14-bit ADCs with sampling rates ≥40MSPS. IC Role / Device Role / Timing Role: High-fidelity input buffer that charges ADC sample-and-hold capacitor rapidly while minimizing harmonic distortion. Use Value: 410MHz bandwidth and 1400V/µs slew rate ensure <0.1% settling error within 10ns for 2Vp-p steps, preserving ENOB. |
Use Scenario: Conditioning pulse-modulated RF intermediate-frequency signals in wireless infrastructure receivers. IC Role / Device Role / Timing Role: Low-noise gain stage in IF chain operating at 70–200MHz with minimal group delay variation. Use Value: 2.1nV/√Hz noise density and -88dBc SFDR at 5MHz enable high dynamic range detection of weak modulated carriers. |
| Video Buffers and Cable Drivers | Active Filters |
Use Scenario: Driving 75Ω coaxial video lines in broadcast equipment, medical imaging displays, and test instrumentation. IC Role / Device Role / Timing Role: Back-terminated line driver with precise impedance matching and minimal differential phase distortion. Use Value: 0.01° differential phase error and ±70mA drive capability maintain color fidelity over 100m RG-59 cable runs. |
Use Scenario: Implementing high-Q, low-distortion active filter stages in ultrasound beamforming and spectral analysis systems. IC Role / Device Role / Timing Role: Gain-setting element in MFB or state-variable topologies requiring wide bandwidth and low noise. Use Value: 410MHz GBW and 100MHz 0.1dB flatness support 20MHz cutoff filters with <0.05dB passband ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, +5V/V gain-stable op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4304EUK-T | Stable at AVCL ≥+2V/V; 740MHz bandwidth, 1000V/µs slew rate, same 2.1nV/√Hz noise | Better suited for lower-gain, higher-bandwidth video gain blocks where +2V/V suffices | Select when design requires wider bandwidth at +2V/V and can tolerate slightly lower slew rate |
| LMH6723MF/NOPB | Unity-gain stable; 1.8GHz GBW, 3000V/µs slew rate, 2.7nV/√Hz noise, SO-8 package | Used in ultra-wideband instrumentation where unity-gain stability and higher speed are mandatory | Choose when board layout permits SO-8 and system requires unity-gain operation with >1GHz bandwidth |
Compared with MAX4105EUK-T, MAX4304EUK-T offers higher bandwidth at lower gain but reduced slew rate, while LMH6723MF/NOPB provides unity-gain stability and greater speed at the cost of higher noise and larger package - guiding selection based on gain requirement, layout constraints, and noise budget.
Availability
MAX4105EUK-T is available at Aetrix Electronics and suitable for video ADC preamplification, high-speed cable driving, and active filter design requiring stable component supply, consistent parametric performance, and long-term industrial temperature support (-40°C to +85°C).
Supply support for MAX4105EUK-T 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-speed ICs for demanding industrial, communications, and medical applications.
The MAX4104/MAX4105/MAX4304/MAX4305 family targets high-fidelity video, telecom, and data acquisition systems requiring ultra-low noise, low distortion, and GHz-class bandwidth in miniature packages.
FAQ
What is the minimum stable closed-loop gain for MAX4105EUK-T?
The MAX4105EUK-T is compensated for minimum stable closed-loop gain of +5V/V. Operation at gains below +5V/V may result in peaking, ringing, or oscillation. This is explicitly defined in the datasheet's Ordering Information and General Description sections, and confirmed by AC Electrical Characteristics test conditions specifying AV = +5V/V for bandwidth and slew rate measurements.
Does MAX4105EUK-T support single-supply operation?
No, MAX4105EUK-T is specified exclusively for dual-supply operation from ±3.5V to ±5.5V. The absolute maximum ratings, electrical characteristics tables, and typical operating curves all assume symmetric VCC/VEE rails. Input common-mode range (-2.8V to +4.1V) and output swing (±3.7V) are referenced to ground and require negative and positive supplies to achieve full dynamic range.
What is the thermal performance of MAX4105EUK-T in SOT23-5?
MAX4105EUK-T has a maximum continuous power dissipation of 571mW at TA = +70°C in the SOT23-5 package, with a thermal derating factor of 7.1mW/°C above +70°C. Junction-to-ambient thermal resistance (θJA) is approximately 175°C/W, meaning at 27mA quiescent current and ±5V supplies (270mW dissipation), junction temperature rise is ~47°C above ambient - well within safe limits for industrial temperature operation.
Can MAX4105EUK-T drive a 75Ω video load directly?
Yes, MAX4105EUK-T delivers ±70mA output current, enabling direct drive of 75Ω loads with ±5.25V swing (3.7V × √2 ≈ 5.25V peak). Measured differential gain/phase errors of 0.01%/0.01° at NTSC frequencies confirm broadcast-grade linearity when driving 75Ω terminated lines - as validated in the Typical Operating Characteristics section (TOC-S and TOC-T).
Is the SOT23-5 package of MAX4105EUK-T pin-compatible with other devices in the MAX4104/MAX4105/MAX4304/MAX4305 family?
Yes, all four devices share identical SOT23-5 pinout: Pin 1 = OUT, Pin 2 = IN+, Pin 3 = IN-, Pin 4 = VEE, Pin 5 = VCC. This is confirmed in the "Pin Configurations" section and "Pin Description" table of the datasheet. However, gain stability requirements differ - substituting MAX4105EUK-T for MAX4104EUK-T in a +1V/V circuit will cause instability.
MAX4105EUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1400V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 410 MHz
- Current - Input Bias:
- 32 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 20mA
- Current - Output / Channel:
- 70 mA
- Voltage - Supply Span (Min):
- 7 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4105EUK-T FAQ
1.How can I place an order for MAX4105EUK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4105EUK-T 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 MAX4105EUK-T reliable?
The price and inventory of MAX4105EUK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4105EUK-T is usually 5 days.
3.What payment methods are accepted for MAX4105EUK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4105EUK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4105EUK-T?
MAX4105EUK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4105EUK-T 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 MAX4105EUK-T?
For technical support, including MAX4105EUK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4105EUK-T requirements.
6.How does Aetrix verify that MAX4105EUK-T is sourced from the original manufacturer or authorized distributors?
All MAX4105EUK-T 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 MAX4105EUK-T meets industry standards.
7.What is the process for return or replacement of MAX4105EUK-T?
All MAX4105EUK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4105EUK-T, 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 MAX4105EUK-T part is unused and in its original packaging.
Return procedure for MAX4105EUK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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