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Analog Devices Inc./Maxim Integrated MAX4453EKA+T
- Part No.:
- MAX4453EKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-8
- Datasheet:
-
MAX4453EKA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:1,491
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Product details
Overview
MAX4453EKA+T from Maxim Integrated is a dual, unity-gain stable, rail-to-rail output operational amplifier optimized for low-power, high-speed signal conditioning in single-supply systems. It delivers 200MHz -3dB bandwidth, 95V/µs slew rate, and consumes only 620µA per amplifier at +5V supply - enabling wideband baseband amplification in portable communications and keyless entry receivers.
For engineers reviewing the MAX4453EKA+T datasheet, MAX4453EKA+T pinout, MAX4453EKA+T application, or MAX4453EKA+T equivalent, this page provides verified electrical specs, SOT23-8 package layout, real-world use cases in ADC buffering and active filters, and validated alternative op amps with documented gain-bandwidth and supply current trade-offs.
Technical Context
The MAX4453EKA+T employs voltage-feedback architecture with internal unity-gain compensation, supporting stable operation down to AVCL = +1V/V. Its bipolar process enables fast large-signal response (20ns rise/fall) and low distortion (–79dBc SFDR at 1MHz), while rail-to-rail output swing (within 180mV of rails into 1kΩ) maximizes dynamic range in 2.7V–5.25V systems.
Input common-mode range extends from VEE – 0.1V to VCC – 1.5V, enabling ground-sensing capability without phase reversal. Output stage uses demand-driven current biasing to maintain low open-loop output impedance (<0.8Ω at 1MHz), ensuring consistent gain across varying load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (-3dB) | 200MHz - supports RF/IF baseband amplification up to cellular band edges without attenuation |
| Slew Rate | 95V/µs - enables clean 2Vpp pulse reproduction with ≤20ns edge fidelity |
| Supply Current | 620µA per amplifier - allows dual-channel operation under 1.25mA total, critical for battery runtime |
| Supply Voltage | +2.7V to +5.25V - compatible with Li-ion, 3.3V logic, and 5V legacy rails without level shifting |
| Output Swing | Within 180mV of rails (1kΩ load) - preserves >95% of full-scale ADC input range |
| Input Offset Voltage | 0.4mV typical - minimizes DC error in precision sensor signal chains |
| THD @ 1MHz | –77dB - ensures <0.043% harmonic distortion in audio and IF signal paths |
Pinout & Package
MAX4453EKA+T is housed in an 8-pin SOT23 package (JEDEC MO-178 compliant), measuring 2.80mm × 2.90mm × 1.30mm, with gull-wing leads and pin 1 marked by a dot. This ultra-small outline supports high-density PCB layouts in space-constrained handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output - drives loads up to 22mA sourcing/sinking; requires isolation resistor for >22pF capacitive loads |
| 2 | INA− | Inverting input of Amp A - high-impedance node (30MΩ); sensitive to PCB parasitics above 10MHz |
| 3 | INA+ | Noninverting input of Amp A - common-mode range includes ground, enabling single-supply sensor interfacing |
| 4 | VEE | Negative supply (typically GND) - must be bypassed with 0.1µF ceramic capacitor near pin |
| 5 | VCC | Positive supply (2.7V–5.25V) - shared power rail for both amplifiers; decoupling critical for AC performance |
| 6 | INB− | Inverting input of Amp B - electrically isolated from Amp A; crosstalk <–74dB at 1MHz |
| 7 | INB+ | Noninverting input of Amp B - identical input specs to INA+, enabling matched dual-channel designs |
| 8 | OUTB | Amplifier B output - independent output stage; supports simultaneous dual-path signal processing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 180mV of VCC/VEE into 1kΩ - preserves maximum signal headroom for 12-bit+ ADCs |
| Unity-gain stability | No external compensation required - simplifies design of buffers, followers, and gain-of-one active filters |
| Low 0.1dB gain flatness | 30MHz bandwidth at ±0.1dB - maintains amplitude accuracy across UMTS/WiFi baseband channels |
| Ultra-low power | 620µA per amp at 5V - enables always-on signal monitoring in keyless entry receivers with multi-year battery life |
| Bipolar process | 97 transistors per channel - delivers superior speed/noise trade-off vs. CMOS op amps at same current |
Applications
| ADC Input Buffer | Active Filter Stage |
|---|---|
Use Scenario: Driving the switched-capacitor input of a 10MSPS 12-bit SAR ADC in a portable medical sensor. IC Role / Device Role / Timing Role: High-speed buffer isolating ADC input from source impedance; settles to 0.1% in 50ns after step input. Use Value: Low 0.8Ω output impedance at 1MHz prevents gain error and distortion caused by ADC sampling kickback. | Use Scenario: Implementing a 15MHz multiple-feedback lowpass filter in a cellular transceiver's IF path. IC Role / Device Role / Timing Role: Active gain stage with precise pole placement; configured as noninverting amplifier with RF/RG = 1. Use Value: 200MHz GBW and 95V/µs slew rate ensure minimal phase shift and group delay variation across passband. |
| Portable Communications Front-End | Keyless Entry Receiver Baseband |
Use Scenario: Amplifying I/Q baseband signals in a Bluetooth LE audio headset before digitization. IC Role / Device Role / Timing Role: Dual-channel differential driver; each amplifier processes one I or Q path with matched gain/phase. Use Value: –74dB crosstalk between channels prevents I-Q imbalance that degrades EVM in QPSK modulation. | Use Scenario: Conditioning sub-13.56MHz RFID reader signals in automotive key fob receivers. IC Role / Device Role / Timing Role: Low-noise preamplifier boosting weak antenna signals prior to envelope detection. Use Value: 15nV/√Hz input voltage noise and 620µA quiescent current enable reliable 10m reception on coin-cell batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, rail-to-rail, high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4453ESA+ | SO-8 package (4.9mm × 6.0mm); higher thermal resistance (5.9mW/°C derating) | Better for prototyping and manual soldering; unsuitable for ultra-compact wearables | Select when board space permits larger footprint and thermal management is less constrained |
| AD8062ARZ | Higher supply current (12.5mA per amp); 320MHz bandwidth; not unity-gain stable | Requires external compensation for gain <10; better for fixed-gain IF amplification than buffering | Choose when bandwidth >300MHz is mandatory and power budget allows >24× higher current draw |
Compared with MAX4453ESA+ and AD8062ARZ, the MAX4453EKA+T uniquely balances 200MHz bandwidth, unity-gain stability, and sub-1mA total supply current in a 2.9mm × 2.8mm footprint - making it optimal for miniaturized, battery-powered signal chains where size and efficiency are co-primary constraints.
Availability
MAX4453EKA+T is available at Aetrix Electronics and suitable for portable communications, keyless entry systems, and ADC front-end designs requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MAX4453EKA+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 consumer applications.
The MAX445x family targets portable, battery-operated systems needing high-speed amplification with minimal power - specifically engineered for baseband signal conditioning in wireless transceivers and sensor interfaces.
FAQ
What is the operating supply voltage range for MAX4453EKA+T?
The MAX4453EKA+T operates from a single supply of +2.7V to +5.25V. This range accommodates standard Li-ion battery voltages (3.0V–4.2V), 3.3V logic rails, and legacy 5V systems without external regulation. Operation outside this range risks permanent damage, as absolute maximum supply voltage is +6V.
Is MAX4453EKA+T unity-gain stable, and what configuration is recommended for best AC performance?
Yes, MAX4453EKA+T is internally compensated for unity-gain stability. For optimal AC response in unity-gain follower configurations, a 24Ω feedback resistor is recommended between output and inverting input to dampen parasitic LC resonance caused by PCB traces and input capacitance.
What is the maximum capacitive load the MAX4453EKA+T can drive directly without oscillation?
The MAX4453EKA+T is characterized to drive up to 22pF capacitive load directly while maintaining stability. For loads exceeding 22pF, an isolation resistor (RISO) must be placed in series with the output - values range from ~10Ω to 30Ω depending on load capacitance, per Figure 2 in the datasheet.
How does the input common-mode voltage range of MAX4453EKA+T support ground-referenced sensors?
The MAX4453EKA+T features a ground-sensing input with common-mode range extending down to VEE – 0.1V (i.e., –0.1V when VEE = GND). This allows direct connection of 0V-referenced sensors (e.g., thermistors, bridge outputs) without level-shifting circuitry, while maintaining >60dB CMRR across the usable range.
What is the typical input offset voltage matching between the two amplifiers in MAX4453EKA+T?
The MAX4453EKA+T specifies ±1mV input offset voltage matching between its dual amplifiers. This tight matching enables accurate differential signal processing, such as I/Q channel balancing in RF receivers, where mismatch-induced DC offsets would degrade image rejection ratio.
MAX4453EKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 95V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 200 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
MAX4453EKA+T FAQ
1.How can I place an order for MAX4453EKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4453EKA+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 MAX4453EKA+T reliable?
The price and inventory of MAX4453EKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4453EKA+T is usually 5 days.
3.What payment methods are accepted for MAX4453EKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4453EKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4453EKA+T?
MAX4453EKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4453EKA+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 MAX4453EKA+T?
For technical support, including MAX4453EKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4453EKA+T requirements.
6.How does Aetrix verify that MAX4453EKA+T is sourced from the original manufacturer or authorized distributors?
All MAX4453EKA+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 MAX4453EKA+T meets industry standards.
7.What is the process for return or replacement of MAX4453EKA+T?
All MAX4453EKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4453EKA+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 MAX4453EKA+T part is unused and in its original packaging.
Return procedure for MAX4453EKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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