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Analog Devices Inc./Maxim Integrated MAX4187ESD
- Part No.:
- MAX4187ESD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4187ESD.pdf
- Description:
- IC AMP CURRENT SENSE 14-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,162
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Product details
Overview
MAX4187ESD from Maxim Integrated is a single-channel, current-feedback video amplifier optimized for +1V/V (0dB) gain applications. It delivers 270MHz small-signal -3dB bandwidth, 450V/µs slew rate, and 20ns settling time to 0.1%, with 0.08%/0.03° differential gain/phase error - making it suitable for high-definition broadcast video signal buffering and multiplexing in professional camera systems.
For engineers reviewing the MAX4187ESD datasheet, MAX4187ESD pinout, MAX4187ESD application, or MAX4187ESD equivalent, key selection criteria include its unity-gain stability, shutdown-enabled high-impedance output, ±2.25V to ±5.5V dual-supply or +5V single-supply operation, and 16-pin QSOP package compatibility with high-density video routing layouts.
Technical Context
The MAX4187ESD employs a current-feedback architecture with transresistance gain stage, enabling wide bandwidth independent of closed-loop gain-unlike voltage-feedback amplifiers. Its internal compensation ensures stability at AV ≥ +1V/V, supporting direct-drive into 150Ω video loads without external compensation networks.
It integrates a logic-controlled shutdown input (SHDN) that reduces quiescent current to 135µA and places the output in high-impedance state, enabling seamless analog video switching in multi-source surveillance or broadcast routing systems without signal contention or DC bias disruption.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 270MHz (-3dB, dual supply, AV = +1V/V): supports full HD (1080p60) baseband video without attenuation. |
| Slew Rate | 450V/µs: enables clean reproduction of fast video transients (e.g., sync pulses, edge transitions) without slewing distortion. |
| Settling Time | 20ns to 0.1%: meets tight timing budgets in high-speed video ADC buffering and digital video switchers. |
| Differential Gain/Phase | 0.08%/0.03° (NTSC, RL = 150Ω): preserves color fidelity and geometry accuracy in professional video signal chains. |
| Supply Current | 1.0mA per amplifier (active), 135µA (shutdown): enables battery-powered portable video gear and low-power system standby modes. |
| Operating Supply | ±2.25V to ±5.5V dual or +5V single: simplifies power design in mixed-signal video boards using standard LDOs or charge pumps. |
| Output Drive | ±60mA: directly drives two 75Ω coaxial cables in parallel or one 150Ω broadcast load with margin. |
Pinout & Package
MAX4187ESD is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.635mm pitch), optimized for thermal performance and board-level EMI control in high-frequency video layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTA | Amplifier A output; drives video load directly; high-current capable (±60mA). |
| 2 | INA− | Inverting input; low-impedance node critical for current-feedback loop stability and gain-setting resistor placement. |
| 3 | INA+ | Noninverting input; high-impedance, low-bias-current node for video source coupling. |
| 4 | VCC | Positive supply rail (+5V or +2.25V to +5.5V); decoupling required within 5mm for RF stability. |
| 5 | INB+ | Amplifier B noninverting input; isolated from OUTA path to prevent crosstalk in dual-channel configurations. |
| 6 | INB− | Amplifier B inverting input; matched to INA− for consistent gain accuracy across channels. |
| 7 | OUTB | Amplifier B output; independently controllable via SHDNB; supports dual-video-path routing. |
| 8,9 | N.C. | No internal connection; must remain unconnected to avoid parasitic coupling or impedance mismatch. |
| 10 | OUTC | Amplifier C output; enables triple-channel video distribution without external buffers. |
| 11 | INC− | Amplifier C inverting input; shares same transresistance architecture as INA−/INB− for channel matching. |
| 12 | INC+ | Amplifier C noninverting input; referenced to VEE for common-mode rejection in AC-coupled video paths. |
| 13 | VEE | Negative supply rail (−5V or GND); ties to ground for single-supply operation; requires local decoupling. |
| 14 | IND+ | Amplifier D noninverting input; supports quad-channel video fanout in compact footprint. |
| 15 | IND− | Amplifier D inverting input; maintains <1% gain error match across all four channels. |
| 16 | OUTD | Amplifier D output; fully independent with dedicated shutdown control (SHDND) per channel. |
Key Features
| Feature | Design Value |
|---|---|
| Unity-gain stable | Guaranteed stable at AV = +1V/V with no external compensation-enables minimal-component video line drivers. |
| Shutdown mode | Reduces supply current to 135µA and forces output to high-Z, enabling hot-swappable video source selection. |
| Low distortion | −73dBc SFDR at 5MHz (2Vp-p, RL = 150Ω) ensures minimal harmonic contamination in composite video signals. |
| Video-optimized specs | 0.08%/0.03° DG/DP and 70MHz 0.1dB flatness meet SMPTE 253M and ITU-R BT.601 broadcast requirements. |
| Quad-channel integration | Four independent current-feedback amps in one 16-pin QSOP reduce PCB area by >60% vs. discrete op-amp solutions. |
Applications
| Professional Broadcast Camera | HD Surveillance Multiplexer |
|---|---|
|
Use Scenario: Front-end analog video buffer in 4K-capable broadcast cameras before ADC sampling. IC Role / Device Role / Timing Role: Current-feedback amplifier providing unity-gain, low-noise, high-slew-rate buffering of RGB or YPbPr signals. Use Value: Preserves signal integrity up to 270MHz, enabling accurate 12-bit ADC sampling without aliasing or transient distortion. |
Use Scenario: Video signal selector in multi-camera security DVR with automatic source switching. IC Role / Device Role / Timing Role: Quad-channel amplifier with per-channel shutdown enabling glitch-free analog video routing. Use Value: High-Z outputs during switching eliminate cross-talk and DC offset glitches between camera inputs. |
| Medical Endoscopy System | High-Speed A/D Buffer |
|
Use Scenario: Real-time video conditioning in minimally invasive surgical endoscopes with flexible cable runs. IC Role / Device Role / Timing Role: Low-distortion, low-phase-error driver for long coaxial video transmission to display processor. Use Value: 0.03° differential phase error prevents color shift and image warping during dynamic scope movement. |
Use Scenario: Driving SAR or pipeline ADC inputs in high-speed test equipment requiring fast settling. IC Role / Device Role / Timing Role: Unity-gain buffer isolating ADC front-end from source impedance variations. Use Value: 20ns settling to 0.1% allows ≤50Msps sampling without aperture uncertainty-induced SNR degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS3201DGN | Higher 1.8GHz bandwidth but 12mA supply current; no integrated shutdown; 8-pin MSOP package. | Better suited for RF IF buffering than baseband video; lacks video-optimized DG/DP specs. | Select THS3201DGN only when >1GHz bandwidth is required and power budget permits 12× higher quiescent draw. |
| LMH6702MA | 2.1GHz bandwidth, 12.5mA supply, no shutdown; SOIC-8; higher noise (2.1nV/√Hz vs. 2nV/√Hz). | Targeted at wideband instrumentation, not broadcast video; no guaranteed DG/DP performance. | Choose LMH6702MA for ultra-wideband signal acquisition where video fidelity metrics are secondary. |
Compared with THS3201DGN and LMH6702MA, the MAX4187ESD trades raw bandwidth for video-specific optimization-delivering guaranteed 0.08%/0.03° DG/DP, 1mA operation, and per-channel shutdown in a quad QSOP, making it uniquely fit for cost- and power-sensitive broadcast and surveillance systems.
Availability
MAX4187ESD is available at Aetrix Electronics and suitable for professional broadcast camera modules, HD surveillance multiplexers, and medical endoscopy systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAX4187ESD 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 demanding industrial, communications, and consumer applications.
The MAX4180–MAX4187 family was engineered specifically for high-fidelity video signal conditioning-balancing bandwidth, power efficiency, and video specification compliance in space-constrained portable and professional systems.
FAQ
What is the minimum recommended supply voltage for MAX4187ESD in dual-supply operation?
The MAX4187ESD supports dual-supply operation from ±2.25V to ±5.5V. The minimum recommended dual-supply voltage is ±2.25V (4.5V total), ensuring full specification compliance including 270MHz bandwidth and 0.08%/0.03° differential gain/phase error. Operation below ±2.25V may degrade bandwidth and increase distortion; always verify performance under actual operating conditions for MAX4187ESD.
Does MAX4187ESD require external compensation components for unity-gain stability?
No, the MAX4187ESD is internally compensated for unity-gain (AV = +1V/V) stability and does not require external compensation components. Its current-feedback architecture and factory-set compensation ensure stable operation into 150Ω loads with standard feedback resistors (e.g., RF = 910Ω). External compensation is unnecessary and may degrade MAX4187ESD's specified bandwidth and settling performance.
Can MAX4187ESD drive a 75Ω coaxial cable directly?
Yes, the MAX4187ESD can drive a single 75Ω coaxial cable directly when configured for AV = +1V/V and loaded with 75Ω termination. Its ±60mA output drive capability provides sufficient current for 1Vp-p into 75Ω (13.3mA), with margin for cable loss and connector reflections. For dual 75Ω loads, use AV = +2V/V configuration with appropriate feedback network to maintain stability and signal integrity for MAX4187ESD.
What is the shutdown behavior of MAX4187ESD's output stage?
When the SHDN pin is driven low (≤VCC − 3V), the MAX4187ESD disables its output stage and places the output in a high-impedance (Hi-Z) state while reducing quiescent current to 135µA. This Hi-Z state prevents signal contention during video source switching and eliminates DC bias injection into downstream circuits-critical for glitch-free operation in multiplexer applications using MAX4187ESD.
Is MAX4187ESD pin-compatible with other devices in the MAX4180–MAX4187 family?
No, MAX4187ESD is not pin-compatible with other members of the MAX4180–MAX4187 family. It uses a 16-pin QSOP package with quad-channel functionality, whereas MAX4180/MAX4181 use 6-pin SOT23 (single), MAX4183/MAX4185 use 10-pin µMAX (dual), and MAX4186 also uses 16-pin QSOP but differs in pin mapping (e.g., MAX4186 has different shutdown pin assignments). Always consult the MAX4187ESD pinout diagram before layout or substitution.
MAX4187ESD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Current Feedback
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 320V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 245 MHz
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 1mA (x4 Channels)
- Current - Output / Channel:
- 60 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 11 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4187ESD FAQ
1.How can I place an order for MAX4187ESD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4187ESD 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 MAX4187ESD reliable?
The price and inventory of MAX4187ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4187ESD is usually 5 days.
3.What payment methods are accepted for MAX4187ESD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4187ESD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4187ESD?
MAX4187ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4187ESD 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 MAX4187ESD?
For technical support, including MAX4187ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4187ESD requirements.
6.How does Aetrix verify that MAX4187ESD is sourced from the original manufacturer or authorized distributors?
All MAX4187ESD 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 MAX4187ESD meets industry standards.
7.What is the process for return or replacement of MAX4187ESD?
All MAX4187ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4187ESD, 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 MAX4187ESD part is unused and in its original packaging.
Return procedure for MAX4187ESD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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