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Analog Devices Inc./Maxim Integrated MAX4353EKA-T
- Part No.:
- MAX4353EKA-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
MAX4353EKA-T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,959
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Product details
Overview
MAX4353EKA-T from Maxim Integrated is a dual, high-speed, rail-to-rail output operational amplifier compensated for minimum +5V/V closed-loop gain, delivering 80MHz -3dB bandwidth, 240V/µs slew rate, and 620µA supply current per amplifier. It operates from a single +2.7V to +5.25V supply and targets low-power, wide-bandwidth signal conditioning in portable communications and keyless entry systems.
For engineers reviewing the MAX4353EKA-T datasheet, MAX4353EKA-T pinout, MAX4353EKA-T application, or MAX4353EKA-T equivalent, this page provides verified electrical specifications, SOT23-8 package details, dual-amplifier functional context, and validated alternative options for +5V/V gain-stable op amp designs.
Technical Context
The MAX4353EKA-T implements a voltage-feedback architecture with internal compensation optimized for stable operation at closed-loop gains ≥ +5V/V. Its bipolar process enables fast large-signal response (8ns rise/fall time) and low distortion (–74dBc SFDR at 1MHz), while maintaining rail-to-rail output swing within 180mV of each supply rail under 1kΩ load.
Input common-mode range extends from (VEE – 0.1V) to (VCC – 1.5V), supporting ground-sensing capability. Output stage features demand-driven biasing and low open-loop output impedance (<0.8Ω at 1MHz), ensuring minimal gain variation across capacitive or resistive loads up to 22pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 80MHz - supports baseband video, IF amplification, and ADC driver applications requiring flat gain up to 4MHz (0.1dB flatness). |
| Slew Rate | 240V/µs - enables clean 2Vp-p signal reproduction at >38MHz large-signal bandwidth without slewing distortion. |
| Supply Current | 620µA per amplifier - allows dual-channel operation at <1.25mA total, critical for battery-powered instruments. |
| Input Offset Voltage | 0.4mV typical - ensures ≤±1mV matching between channels, minimizing DC error in differential or parallel configurations. |
| Output Swing | Within 180mV of rails (VCC/VEE) at 1kΩ - maximizes dynamic range in single-supply systems operating down to +2.7V. |
| Supply Voltage Range | +2.7V to +5.25V - compatible with Li-ion, 3.3V, and 5V logic domains without level-shifting circuitry. |
| Input Noise Density | 15nV/√Hz at 10kHz - suitable for medium-bandwidth sensor interfaces where SNR >70dB is required. |
Pinout & Package
MAX4353EKA-T is housed in an 8-pin SOT23 package (JEDEC MO-178 compliant), measuring 2.80mm × 2.90mm × 1.30mm with gull-wing leads. This ultra-small outline supports high-density PCB layouts in space-constrained portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - rail-to-rail capable, drives 1kΩ load to within 180mV of VCC/VEE. |
| 2 | INA− | Inverting input for Amplifier A - differential pair node with 0.8µA typical input bias current. |
| 3 | INA+ | Noninverting input for Amplifier A - common-mode range extends to VEE − 0.1V for ground-referenced sensing. |
| 4 | VEE | Negative power supply - connects to system ground in single-supply operation. |
| 5 | VCC | Positive power supply - accepts +2.7V to +5.25V; requires 0.1µF ceramic bypass capacitor. |
| 6 | INB− | Inverting input for Amplifier B - electrically isolated from INA−; crosstalk <−74dB at 1MHz. |
| 7 | INB+ | Noninverting input for Amplifier B - matched offset voltage (±1mV) relative to INA+ for dual-channel precision. |
| 8 | OUTB | Amplifier B output - identical AC/DC performance to OUTA; enables independent signal paths on one die. |
Key Features
| Feature | Design Value |
|---|---|
| +5V/V minimum stable gain | Eliminates need for external compensation in gain ≥5 circuits, reducing component count and layout sensitivity. |
| Rail-to-rail output | Delivers full 2.5Vpp swing from +2.7V supply, increasing usable signal range by >30% vs. traditional op amps. |
| Ultra-low 620µA per amplifier | Enables always-on signal monitoring in keyless entry receivers with <2.5mA total system quiescent current. |
| 80MHz bandwidth / 240V/µs slew rate | Supports clean amplification of 10MHz square waves with <10% overshoot and <50ns settling to 0.1%. |
| Low 15nV/√Hz input noise | Maintains SNR >72dB for 10kHz sensor signals with 100kΩ source impedance, avoiding noise-dominated measurements. |
Applications
| Battery-Powered Instruments | Portable Communications |
|---|---|
|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple or shunt voltage signals. IC Role / Device Role / Timing Role: Precision DC-coupled gain block with low offset drift and rail-to-rail output driving 12-bit SAR ADC reference buffer. Use Value: 0.4mV typical VOS and ±1mV channel matching reduce calibration burden; 620µA current enables >100hr battery life on two AA cells. |
Use Scenario: IF amplifier in Bluetooth/Wi-Fi transceiver module converting 2.4GHz downconverted baseband to ADC input. IC Role / Device Role / Timing Role: High-linearity, low-noise gain stage with 80MHz bandwidth and –74dBc SFDR at 1MHz. Use Value: 240V/µs slew rate preserves 10MHz modulation envelope fidelity; 22pF capacitive load drive simplifies filter integration. |
| Cellular Telephones | Keyless Entry Systems |
|
Use Scenario: Audio codec line driver amplifying stereo DAC outputs to headphone jack with minimal THD. IC Role / Device Role / Timing Role: Dual-channel unity-gain buffer (configured for +5V/V minimum) with rail-to-rail swing and low distortion. Use Value: –70dB THD at 1Vp-p/1MHz ensures audible transparency; SOT23-8 footprint saves >3mm² vs. SO-8 in tight RF shielded zones. |
Use Scenario: RF signal detector amplifier in car key fob receiver conditioning sub-100mV envelope-detected signals. IC Role / Device Role / Timing Role: Low-quiescent, high-speed comparator preamplifier enabling fast wake-up from sleep mode. Use Value: 620µA supply current allows continuous listening at <1.3µA average with duty cycling; 8ns rise time supports 125kHz OOK detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, gain-stable op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6629MA/NOPB | Higher 1.5GHz GBW, 1.8mA supply current, requires external compensation for stability at G ≥ +5V/V. | Used in high-fidelity audio and test equipment where bandwidth >500MHz is mandatory. | Select when >100MHz small-signal bandwidth is required and higher power is acceptable. |
| ADA4891-2ARZ | Unity-gain stable, 225MHz bandwidth, 4.4mA supply current, rail-to-rail I/O, lower noise (4nV/√Hz). | Preferred in precision instrumentation where unity-gain buffering and low noise dominate over power. | Choose for unity-gain applications or when <5nV/√Hz noise is critical; not drop-in for +5V/V fixed-gain designs. |
Compared with LMH6629MA/NOPB and ADA4891-2ARZ, the MAX4353EKA-T uniquely balances 80MHz bandwidth, +5V/V minimum gain stability, and sub-1mA quiescent current-making it optimal for battery-operated RF and portable signal chain stages where power and gain configuration are co-constrained.
Availability
MAX4353EKA-T is available at Aetrix Electronics and suitable for battery-powered instruments, portable communications, and keyless entry systems requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX4353EKA-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 markets.
The MAX4353EKA-T belongs to Maxim's high-speed, low-power op amp family engineered specifically for portable, single-supply applications demanding bandwidth, rail-to-rail output, and sub-1mA quiescent current.
FAQ
What is the minimum stable closed-loop gain for the MAX4353EKA-T?
The MAX4353EKA-T is internally compensated for stable operation at closed-loop gains of +5V/V and higher. It is not unity-gain stable; using it at G = +1V/V may cause peaking or oscillation. For unity-gain applications, the pin-compatible MAX4453EKA-T is recommended. The +5V/V minimum gain specification is confirmed in the AC Electrical Characteristics table and Selector Guide.
Does the MAX4353EKA-T support rail-to-rail input operation?
No, the MAX4353EKA-T does not support rail-to-rail input. Its input common-mode voltage range is specified from (VEE – 0.1V) to (VCC – 1.5V), meaning it cannot sense signals within 1.5V of the positive rail. However, it does provide true rail-to-rail output swing-within 180mV of both VCC and VEE under 1kΩ load-as verified in the DC Electrical Characteristics table.
What package type and dimensions does the MAX4353EKA-T use?
The MAX4353EKA-T uses an 8-pin SOT23 package (JEDEC MO-178), with body dimensions of 2.80mm × 2.90mm × 1.30mm and lead pitch of 0.65mm. This is distinct from the Thin SOT23-8 (AAAB marking) and SO-8 variants-confirmed by the Ordering Information table where "EKA-T" maps exclusively to standard SOT23-8.
Can the MAX4353EKA-T drive capacitive loads directly?
The MAX4353EKA-T is characterized to drive up to 22pF capacitive load without instability, as stated in the AC Electrical Characteristics table. For larger loads, an isolation resistor (RISO) must be placed in series with the output-values ranging from 10Ω to 30Ω depending on capacitance, per Figure 2 in the Applications Information section. Direct connection to >22pF loads risks ringing or oscillation.
How does the MAX4353EKA-T compare to the MAX4453EKA-T in terms of bandwidth and gain stability?
The MAX4353EKA-T offers 80MHz -3dB bandwidth and is compensated for minimum +5V/V gain, whereas the MAX4453EKA-T delivers 200MHz bandwidth but is unity-gain stable. Both share identical SOT23-8 packaging, supply range (+2.7V to +5.25V), and quiescent current (620µA per amplifier). The choice depends strictly on required gain configuration and bandwidth trade-offs.
MAX4353EKA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 240V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 80 MHz
- Current - Input Bias:
- 800 nA
- Voltage - Input Offset:
- 400 µV
- Current - Supply:
- 620µA (x2 Channels)
- Current - Output / Channel:
- 22 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
MAX4353EKA-T FAQ
1.How can I place an order for MAX4353EKA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4353EKA-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 MAX4353EKA-T reliable?
The price and inventory of MAX4353EKA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4353EKA-T is usually 5 days.
3.What payment methods are accepted for MAX4353EKA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4353EKA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4353EKA-T?
MAX4353EKA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4353EKA-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 MAX4353EKA-T?
For technical support, including MAX4353EKA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4353EKA-T requirements.
6.How does Aetrix verify that MAX4353EKA-T is sourced from the original manufacturer or authorized distributors?
All MAX4353EKA-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 MAX4353EKA-T meets industry standards.
7.What is the process for return or replacement of MAX4353EKA-T?
All MAX4353EKA-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4353EKA-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 MAX4353EKA-T part is unused and in its original packaging.
Return procedure for MAX4353EKA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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