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Analog Devices Inc./Maxim Integrated MAX4493AXK+T
- Part No.:
- MAX4493AXK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4493AXK+T.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,585
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Product details
Overview
The MAX4493AXK+T from Maxim Integrated is a single-channel, rail-to-rail output operational amplifier optimized for low-power, dual-supply systems (±2.25V to ±5.5V) or single-supply operation (+4.5V to +11V), delivering 5MHz gain-bandwidth, 770µA quiescent current per amplifier, and 110dB open-loop gain - deployed in battery-powered instrumentation and DAC output buffering.
For engineers reviewing the MAX4493AXK+T datasheet, MAX4493AXK+T pinout, MAX4493AXK+T application, or MAX4493AXK+T equivalent, key selection criteria include its automotive-grade temperature range (–40°C to +125°C), SC70-5 package footprint, rail-to-rail output swing within 10mV of rails (RL = 100kΩ), and input common-mode range extending 200mV below VEE.
Technical Context
This bipolar-process op amp features unity-gain stability and no phase reversal under overdriven inputs, enabling robust signal conditioning in precision analog front-ends. Its input stage supports common-mode voltages from VEE – 0.2V to VCC – 1.5V, while the output stage delivers rail-to-rail swing with <200mV headroom into 1kΩ loads.
AC performance includes 3V/µs slew rate, 190kHz full-power bandwidth (5VP-P), and 0.002% THD+N at 1kHz - validated across the full automotive temperature range. Capacitive-load stability is guaranteed up to 300pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25V to ±5.5V dual or +4.5V to +11V single - supports wide industrial and automotive supply rails |
| Quiescent Current | 770µA per amplifier - enables multi-channel, always-on sensing in battery-constrained systems |
| Gain-Bandwidth Product | 5MHz - sufficient for anti-aliasing, sensor amplification, and DAC buffer applications up to ~100kHz |
| Open-Loop Gain | 110dB (RL = 100kΩ) - ensures <1mV error in high-precision closed-loop configurations |
| Input Offset Voltage | 10mV max (–40°C to +125°C) - suitable for moderate-accuracy signal conditioning without trimming |
| THD+N | 0.002% at 1kHz, 5VP-P - preserves fidelity in audio and measurement signal paths |
| Output Voltage Swing | Within 10mV of rails (RL = 100kΩ) - maximizes dynamic range in low-voltage systems |
Pinout & Package
MAX4493AXK+T is housed in a 5-pin SC70 package (package code X5-1), measuring 2.0mm × 1.25mm × 0.95mm, with moisture sensitivity level (MSL) 1 and RoHS-compliant lead-free finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN+ | Noninverting input - accepts signals down to VEE – 0.2V; high-impedance node requiring guarded layout |
| 2 | IN− | Inverting input - forms feedback node; matched to IN+ for low offset drift |
| 3 | OUT | Amplifier output - rail-to-rail capable; stable driving ≤300pF capacitive load directly |
| 4 | VEE | Negative supply pin - must be bypassed with 0.1µF capacitor to ground for PSRR optimization |
| 5 | VCC | Positive supply pin - requires local 0.1µF decoupling; supplies internal bias circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings within 10mV of VCC and VEE at RL = 100kΩ - preserves full-scale resolution in low-voltage ADC interfaces |
| Extended input common-mode range | Operates from VEE – 0.2V to VCC – 1.5V - enables direct sensing of signals near negative rail in single-supply systems |
| No phase reversal on overdrive | Prevents latch-up or uncontrolled output transitions when inputs exceed common-mode limits - critical for fault-tolerant designs |
| Unity-gain stable | Configurable as buffer or gain stage without external compensation - simplifies layout and reduces BOM count |
| Automotive temperature rating | Qualified from –40°C to +125°C - meets AEC-Q100 stress test requirements for under-hood and chassis applications |
Applications
| Battery-Powered Instrumentation | DAC Output Amplification |
|---|---|
|
Use Scenario: Portable gas detector using low-power microcontroller and 12-bit DAC to drive electrochemical sensor bias voltage. IC Role / Device Role / Timing Role: Precision voltage buffer isolating DAC output from variable sensor impedance while maintaining rail-to-rail compliance. Use Value: 770µA quiescent current extends battery life; 10mV output headroom maximizes usable DAC range at 3.3V supply. |
Use Scenario: Industrial PLC analog output module generating 0–10V control signals from a 16-bit DAC. IC Role / Device Role / Timing Role: Low-drift, unity-gain buffer amplifying DAC reference voltage with minimal loading error. Use Value: 110dB open-loop gain ensures <0.01% gain error; 0.002% THD+N preserves signal integrity for closed-loop motor control. |
| Voltage Reference Conditioning | Industrial Signal Conditioning |
|
Use Scenario: Precision voltage reference (e.g., REF5025) feeding an ADC in a data acquisition system requiring low-noise, high-PSRR buffering. IC Role / Device Role / Timing Role: High-PSRR (80dB) buffer isolating reference from ADC switching noise and supply ripple. Use Value: 80dB PSRR minimizes supply-induced reference drift; bipolar input stage ensures low 1/f noise at DC. |
Use Scenario: 4–20mA transmitter front-end converting thermocouple or RTD signals before isolation and digitization. IC Role / Device Role / Timing Role: Low-input-bias-current (0.2µA typ) amplifier for high-impedance sensor interfacing with rail-to-rail output swing. Use Value: Input bias current <1µA avoids significant offset in 100kΩ sensor bridges; –40°C to +125°C rating supports harsh factory environments. |
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 |
|---|---|---|---|
| TSV911ICT | CMOS input (IB = 1pA), lower supply current (80µA), but only 4MHz GBW and 1.1V/V min supply | Better for ultra-low-power, high-impedance sensors; unsuitable for ±5V dual-supply or >100kHz AC-coupled use | Select TSV911ICT only if input bias current <10pA is mandatory and bandwidth ≤4MHz suffices |
| LMV321IDBVR | Rail-to-rail I/O, 1MHz GBW, 80µA IQ, but only 60dB CMRR and no automotive qualification | Cost-sensitive consumer applications; not rated for automotive or industrial temperature extremes | Choose LMV321IDBVR for non-automotive, low-bandwidth, cost-driven designs where 110dB gain is unnecessary |
Compared with MAX4493AXK+T, TSV911ICT trades bandwidth and supply flexibility for femtoampere input bias, while LMV321IDBVR sacrifices gain accuracy, CMRR, and temperature rating for lower cost and power - neither matches the MAX4493AXK+T's combination of 5MHz bandwidth, 110dB gain, and AEC-Q100 qualification in SC70.
Availability
MAX4493AXK+T is available at Aetrix Electronics and suitable for battery-powered instrumentation, DAC output amplification, voltage reference conditioning, and industrial signal conditioning requiring stable component supply across automotive temperature ranges.
Supply support for MAX4493AXK+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 power-management ICs for industrial, automotive, and communications infrastructure markets.
The MAX4493 family targets low-power, rail-to-rail op amp applications in space-constrained, temperature-extreme environments - emphasizing supply flexibility, output swing, and automotive reliability without sacrificing bandwidth or precision.
FAQ
What is the operating temperature range for MAX4493AXK+T?
The MAX4493AXK+T is qualified for continuous operation from –40°C to +125°C, meeting automotive AEC-Q100 requirements. This rating is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, with all DC and AC specifications guaranteed across this full range.
Does MAX4493AXK+T support single-supply operation?
Yes, MAX4493AXK+T operates from a single supply of +4.5V to +11V, as explicitly stated in the General Description and DC Electrical Characteristics tables. Its input common-mode range extends to VEE – 0.2V, enabling use with ground-referenced inputs even in single-supply configurations.
What is the maximum capacitive load MAX4493AXK+T can drive without oscillation?
MAX4493AXK+T is stable with capacitive loads up to 300pF when configured as a unity-gain buffer, per the Capacitive-Load Stability specification and Typical Operating Characteristic Figure MAX4493-26. Driving larger loads requires an isolation resistor (e.g., 15Ω) in series with the output.
Is MAX4493AXK+T pin-compatible with other variants in the MAX4493/MAX4494/MAX4495 family?
No - MAX4493AXK+T uses a 5-pin SC70 package with dedicated IN+, IN−, OUT, VCC, and VEE pins. The dual MAX4494 and quad MAX4495 use 8-pin SOT23 and 14-pin TSSOP/SO packages with different pin counts and layouts; no pin-to-pin compatibility exists across the family.
What is the typical power-up time for MAX4493AXK+T?
The typical power-up time for MAX4493AXK+T is 3µs, defined as the time required for the output to settle within 1V of final value after a 1µs supply ramp, as shown in Typical Operating Characteristic Figure MAX4493-25 and confirmed in the Applications Information section.
MAX4493AXK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 770µA
- Current - Output / Channel:
- 15 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4493AXK+T FAQ
1.How can I place an order for MAX4493AXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4493AXK+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 MAX4493AXK+T reliable?
The price and inventory of MAX4493AXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4493AXK+T is usually 5 days.
3.What payment methods are accepted for MAX4493AXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4493AXK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4493AXK+T?
MAX4493AXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4493AXK+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 MAX4493AXK+T?
For technical support, including MAX4493AXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4493AXK+T requirements.
6.How does Aetrix verify that MAX4493AXK+T is sourced from the original manufacturer or authorized distributors?
All MAX4493AXK+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 MAX4493AXK+T meets industry standards.
7.What is the process for return or replacement of MAX4493AXK+T?
All MAX4493AXK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4493AXK+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 MAX4493AXK+T part is unused and in its original packaging.
Return procedure for MAX4493AXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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