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Analog Devices Inc./Maxim Integrated MAX4445ESE+T
- Part No.:
- MAX4445ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4445ESE+T.pdf
- Description:
- IC AMP RECEIVER 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,725
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Product details
Overview
MAX4445ESE+T from Maxim Integrated is an ultra-high-speed, low-distortion differential-to-single-ended line receiver with enable control, designed for precision video and RF signal conditioning. It features 550MHz small-signal bandwidth, 5000V/µs slew rate, ±3.7V output swing into 100Ω, external gain configuration (≥+2V/V), and low-power disable mode reducing quiescent current to 3.5mA. It operates from ±5V supplies and drives coaxial or twisted-pair transmission lines in high-fidelity instrumentation.
For engineers reviewing the MAX4445ESE+T datasheet, MAX4445ESE+T pinout, MAX4445ESE+T application, or MAX4445ESE+T equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and layout implications.
Technical Context
The MAX4445ESE+T uses a three-op-amp instrumentation amplifier architecture with symmetrical differential inputs and single-ended output, enabling precise rejection of common-mode noise in high-speed analog links. Its current-feedback topology supports stable operation at gains ≥+2V/V set by external resistor RG between pins 4 and 5.
It achieves 0.07% differential gain error and 0.05° phase error at NTSC frequencies, with -60dB SFDR at 5MHz and 25nV/√Hz input voltage noise density at 100kHz - confirming suitability for broadcast-grade video and wideband RF sampling front-ends where signal integrity is non-negotiable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 550MHz – ensures full fidelity for HD video signals up to 1080p60 and RF IF stages below 500MHz. |
| Slew Rate | 5000V/µs – supports clean transient response for fast-rising digital video edges and pulsed RF envelopes. |
| Output Voltage Swing | ±3.7V into 100Ω – directly drives standard 75Ω coaxial lines with margin, minimizing need for level-shifting buffers. |
| Gain Configuration | External resistor RG sets gain ≥+2V/V via Gain = 1 + 600/RG – enables precise loss compensation in long cable runs. |
| Differential Gain/Phase Error | 0.07%/0.05° at NTSC – meets broadcast video standards without post-correction circuitry. |
| Input Noise Density | 25nV/√Hz at 100kHz – preserves SNR in low-level sensor or antenna preamplifier interfaces. |
| Enable Function | Active-high EN pin reduces IQ to 3.5mA – allows dynamic power gating in battery-sensitive or thermally constrained systems. |
Pinout & Package
MAX4445ESE+T is housed in a 16-pin narrow SO (SOIC-N) package with exposed pad thermal enhancement per Maxim's standard ESE designation. Pin 16 is GND; pins 7,8,11–14 are VEE (−5V); pins 1 and 2 are VCC (+5V); pin 10 is REF (mid-supply reference); pin 9 is EN (active-high enable); pins 3 and 6 are IN− and IN+, respectively; pin 15 is OUT; pins 4 and 5 are RG terminals for gain-setting resistor; pins 4 and 5 are NC on MAX4444 but functional on MAX4445.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pins 1, 2) | Positive supply input | Bypassed to GND with 0.1µF capacitor; powers internal op-amps and bias networks. |
| IN− (Pin 3) | Inverting differential input | Accepts one leg of balanced signal; matched impedance critical for CMRR >55dB. |
| RG (Pins 4, 5) | External gain resistor connection | Resistor here sets closed-loop gain ≥+2V/V; open or short causes instability. |
| EN (Pin 9) | Enable control input | Logic-high (>2V) enables amplification; logic-low disables output and cuts IQ to 3.5mA. |
| VEE (Pins 7,8,11–14) | Negative supply input | Eight dedicated −5V connections minimize ground bounce and improve PSRR above 10MHz. |
| IN+ (Pin 6) | Noninverting differential input | Accepts second leg of balanced signal; symmetry with IN− ensures <0.1° phase skew. |
| GND (Pin 16) | Analog ground reference | Single-point return for REF, bypass caps, and PCB ground plane; must avoid digital return paths. |
| OUT (Pin 15) | Single-ended output | Drives 100Ω loads to ±3.7V; output impedance <0.7Ω at DC, rising to ~100Ω at 100MHz. |
| REF (Pin 10) | Reference input | Connected to midpoint of ±5V supplies (0V); defines output common-mode level for DC-coupled systems. |
Key Features
| Feature | Design Value |
|---|---|
| Current-feedback architecture | Enables 550MHz bandwidth with minimal phase shift, supporting wideband applications without stability trade-offs. |
| External gain resistor interface | Allows field-adjustable gain from +2V/V upward using standard 1% metal-film resistors, eliminating redesign for varying cable loss. |
| Low-power enable/disable | Reduces quiescent current from 41mA to 3.5mA while maintaining high-Z output state-critical for power-managed video routing switches. |
| Ultra-low distortion profile | -60dB SFDR at 5MHz and <0.07% differential gain error ensure compliance with SMPTE 259M and ITU-R BT.601 video standards. |
| High-output current drive | 120mA continuous output capability directly drives 75Ω coaxial cables without external buffers, simplifying BOM and layout. |
Applications
| Video Signal Conditioning | RF Intermediate Frequency Amplification |
|---|---|
Use Scenario: Converting differential RGB or YPbPr signals from FPGA or ASIC video outputs to single-ended coaxial distribution. IC Role / Device Role / Timing Role: Differential-to-single-ended receiver with precise gain and phase matching across color channels. Use Value: Maintains 0.07% differential gain and 0.05° phase error at NTSC frequencies, eliminating visible color fringing in broadcast monitors. |
Use Scenario: Amplifying 70MHz IF signals from SDR receivers before ADC sampling. IC Role / Device Role / Timing Role: Wideband, low-noise line receiver preserving signal envelope integrity and harmonic purity. Use Value: 550MHz bandwidth and -60dB SFDR at 5MHz ensure clean digitization of multi-tone RF signals without intermodulation artifacts. |
| Medical Imaging Front-End | High-Speed Data Acquisition Interface |
Use Scenario: Receiving differential ultrasound beamformer outputs prior to digitization in portable imaging systems. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate receiver capturing fast transducer echoes with minimal time-domain distortion. Use Value: 5000V/µs slew rate resolves sub-10ns pulse edges; 25nV/√Hz input noise preserves weak echo SNR in low-dose imaging. |
Use Scenario: Interfacing differential LVDS or CML data streams from high-speed sensors to single-ended ADC drivers. IC Role / Device Role / Timing Role: High-fidelity signal translator ensuring timing accuracy and amplitude fidelity across acquisition channels. Use Value: 12ns settling time to 0.1% and ±3.7V output swing enable direct coupling to 12-bit+ ADCs without attenuation or gain staging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential-to-single-ended receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561DGNR | Fixed +1V/V or +2V/V gain; no external gain resistor; 3.3V single-supply only; 4.2GHz GBW but lower output swing (±2.1V into 100Ω). | Not suitable for ±5V systems or coaxial driving requiring ±3.7V swing; better for low-voltage, high-GBW DC-coupled sensor interfaces. | Select THS4561DGNR only when operating from 3.3V and gain is fixed; MAX4445ESE+T remains preferred for ±5V, variable-gain, high-swing video/RF use. |
| ADA4897-1ARZ | Unity-gain stable; 1GHz bandwidth; 280V/µs slew rate; 1.2nV/√Hz noise; requires external feedback network for gain ≥+2V/V. | Lacks integrated enable pin and differential input structure; needs discrete instrumentation topology for common-mode rejection. | Choose ADA4897-1ARZ for ultra-low-noise, high-bandwidth op-amp building blocks; MAX4445ESE+T provides complete, optimized differential receiver functionality out-of-box. |
Compared with THS4561DGNR and ADA4897-1ARZ, the MAX4445ESE+T uniquely integrates differential input instrumentation architecture, ±5V operation, external gain flexibility, active enable control, and coaxial-line drive capability - making it the only drop-in solution for legacy video infrastructure and RF test equipment requiring all four attributes simultaneously.
Availability
MAX4445ESE+T is available at Aetrix Electronics and suitable for video signal conditioning, RF intermediate frequency amplification, medical imaging front-ends, high-speed data acquisition interfaces, and broadcast equipment requiring stable component supply across extended production cycles.
Supply support for MAX4445ESE+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 high-performance analog and mixed-signal ICs for demanding signal-chain applications, with emphasis on precision, speed, and power efficiency.
The MAX4445ESE+T belongs to Maxim's ultra-high-speed line receiver product line, engineered specifically for differential video and RF signal recovery where distortion, bandwidth, and power management are co-constrained design priorities.
FAQ
What is the minimum stable gain configuration for the MAX4445ESE+T?
The MAX4445ESE+T is compensated for closed-loop gains of +2V/V or greater. Gain is set externally using a resistor (RG) between pins 4 and 5, calculated as Gain = 1 + 600/RG. Attempting gains below +2V/V risks instability and peaking in frequency response. The MAX4445ESE+T datasheet explicitly guarantees performance only at AVCL ≥+2V/V, and no internal compensation exists for unity-gain operation.
Does the MAX4445ESE+T support single-supply operation?
No, the MAX4445ESE+T requires dual ±5V supplies (±4.5V to ±5.5V operating range) as specified in its absolute maximum ratings and electrical characteristics tables. Its VCC and VEE pins are separate and not internally referenced; attempting single-supply operation violates the device's rail-to-rail input common-mode range (±2.9V) and output swing capability (±3.7V), resulting in clipping or malfunction. The MAX4445ESE+T is not rated for 3.3V or 5V-only operation.
How does the enable (EN) pin affect output impedance in shutdown mode?
When EN is pulled low, the MAX4445ESE+T enters low-power disable mode, reducing quiescent current to 3.5mA and placing the output in a high-impedance state. In this mode, the effective output resistance is 1.8kΩ for the MAX4445ESE+T (plus RG if connected), as confirmed in the DC Electrical Characteristics table under "Disable Output Resistance." This allows safe multiplexing or bus sharing without loading downstream stages.
Can the MAX4445ESE+T drive 75Ω coaxial cable directly?
Yes, the MAX4445ESE+T is explicitly characterized to drive 75Ω coaxial cables. Its 120mA output current capability and ±3.7V swing into 100Ω translate to robust drive strength for 75Ω loads, as noted in the Applications Information section. For optimal performance, use series isolation resistors (per Figure 2 and Typical Operating Characteristics plot MAX4444toc27) to suppress ringing when driving long cables or high-capacitance connectors.
What is the function of the REF pin on the MAX4445ESE+T?
The REF pin (Pin 10) on the MAX4445ESE+T sets the output common-mode voltage. It must be connected to the midpoint of the ±5V supplies (i.e., 0V) to center the single-ended output at 0V DC. This enables true DC-coupled operation in video and instrumentation systems. Leaving REF floating or connecting it to GND or VCC will shift output offset unpredictably and degrade CMRR, as confirmed in the Pin Description and Typical Operating Circuit diagrams.
MAX4445ESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Receiver
- Output Type:
- -
- Number of Circuits:
- 1
- -3db Bandwidth:
- 550 MHz
- Slew Rate:
- 3800V/µs
- Current - Supply:
- 41 mA
- Current - Output / Channel:
- 120 mA
- Voltage - Supply, Single/Dual (±):
- ±4.5V ~ 5.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
MAX4445ESE+T FAQ
1.How can I place an order for MAX4445ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4445ESE+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 MAX4445ESE+T reliable?
The price and inventory of MAX4445ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4445ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4445ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4445ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4445ESE+T?
MAX4445ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4445ESE+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 MAX4445ESE+T?
For technical support, including MAX4445ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4445ESE+T requirements.
6.How does Aetrix verify that MAX4445ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4445ESE+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 MAX4445ESE+T meets industry standards.
7.What is the process for return or replacement of MAX4445ESE+T?
All MAX4445ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4445ESE+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 MAX4445ESE+T part is unused and in its original packaging.
Return procedure for MAX4445ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4445ESE+T Tags
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LT6552CS8#PBF
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LT6205IS5#TRPBF
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LT6206IMS8#TRPBF
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LT1252CS8#PBF
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AD818ARZ-REEL7
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