My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4178EPA
- Part No.:
- MAX4178EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4178EPA.pdf
- Description:
- IC BUFFER CLSD-LOOP 330MHZ 8-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,288
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4178EPA from Maxim Integrated is a ±5V, unity-gain (0dB), high-speed closed-loop video buffer IC optimized for 75Ω/50Ω cable driving. It delivers 330MHz -3dB bandwidth, 1300V/µs slew rate, and <0.01° differential phase / 0.04% differential gain error - enabling broadcast-grade analog video signal distribution in routing and switching systems.
For engineers reviewing the MAX4178EPA datasheet, MAX4178EPA pinout, MAX4178EPA application, or MAX4178EPA equivalent, key selection criteria include its fixed +1 voltage gain, DIP-8 package compatibility with legacy video PCB layouts, low input offset voltage (0.5mV), and proven performance driving back-terminated coaxial cables without external compensation.
Technical Context
The MAX4178EPA employs a hybrid current-feedback/voltage-feedback architecture that achieves both high slew rate (1300V/µs) and precision characteristics (0.5mV VOS, 1µA IB). Its input stage avoids the high bias current typical of pure current-feedback amplifiers while retaining wide bandwidth and fast settling.
This architecture enables stable unity-gain operation with full-power bandwidth of 250MHz (2Vp-p), ±0.1dB flatness to 150MHz, and robust drive capability into 50Ω/75Ω loads - making it suitable for high-fidelity video signal conditioning where gain accuracy and transient fidelity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 330MHz - supports full HD video baseband signals up to ~200MHz with minimal attenuation |
| Voltage Gain | +1 (0dB), fixed internal configuration - eliminates external feedback network, reducing layout sensitivity and component count |
| Slew Rate | 1300V/µs - ensures sub-12ns settling to 0.1% for 2V step, critical for sharp video edge integrity |
| Differential Phase/Gain Error | 0.01° / 0.04% - meets SMPTE 253M broadcast specification for color fidelity in composite/component video |
| Input Offset Voltage | 0.5mV max - minimizes DC shift in cascaded video amplifier chains, preserving black level accuracy |
| Supply Current | 8mA - enables multi-channel video distribution designs within thermal and power budget constraints |
| Output Short-Circuit Current | 150mA - safely drives multiple parallel 75Ω loads or withstands momentary shorts without latch-up |
Pinout & Package
MAX4178EPA is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width, compatible with through-hole prototyping and industrial video equipment PCBs. Pin 1 is marked by a notch or dot; leads are tin-lead plated for reliable wave soldering.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection | Internally unused; must be left floating or tied to ground per layout best practice |
| 2 | Inverting Input (N.C.) | No connection - not bonded out; no external connection required |
| 3 | Ground (GND) | Reference node for signal and supply return; requires low-inductance connection to solid ground plane |
| 4 | Noninverting Input (IN) | High-impedance video input node; must be AC-coupled and impedance-matched to source |
| 5 | No Connection | Internally unused; must be left floating or tied to ground |
| 6 | Positive Supply (VCC) | +5V DC supply; requires local 0.1µF ceramic bypass capacitor placed ≤5mm from pin |
| 7 | Negative Supply (VEE) | –5V DC supply; requires local 0.1µF ceramic bypass capacitor placed ≤5mm from pin |
| 8 | Output (OUT) | Low-impedance video output; designed for direct 75Ω back-termination into coaxial cable |
Key Features
| Feature | Design Value |
|---|---|
| Hybrid feedback topology | Combines current-feedback speed (330MHz BW) with voltage-feedback precision (0.5mV VOS, 1µA IB) |
| Video-optimized linearity | 0.01° DP / 0.04% DG error at 3.58MHz - preserves chroma timing and amplitude in NTSC/PAL systems |
| Capacitive load drive | Stable with up to 100pF load - accommodates PCB trace capacitance and connector parasitics without oscillation |
| ESD protection | 8000V HBM - survives handling and system-level ESD events common in broadcast equipment environments |
| Short-circuit protection | 150mA current limit - prevents damage during cable fault conditions or miswiring in field-deployed gear |
Applications
| Broadcast Video Routing | Medical Endoscopy Imaging |
|---|---|
|
Use Scenario: Distribution of composite video from camera head to multiple monitors and recording devices in OB vans. IC Role / Device Role / Timing Role: Unity-gain buffer isolating source from multiple 75Ω coaxial drops while preserving sync pulse integrity and color burst amplitude. Use Value: Eliminates ghosting and color smearing caused by impedance mismatch, verified by <0.01° differential phase error at 3.58MHz. |
Use Scenario: Conditioning analog RGB or Y/C signals from high-resolution endoscopic cameras before digitization. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth driver between image sensor front-end and ADC input, maintaining pixel clock edge fidelity. Use Value: 250MHz full-power bandwidth ensures accurate reproduction of >100MHz pixel rates without slew-induced distortion. |
| HD-SDI Analog Emulation | Test Equipment Signal Path |
|
Use Scenario: Generating calibrated analog test signals mimicking HD-SDI eye diagram compliance for receiver validation. IC Role / Device Role / Timing Role: Precision gain-stable output stage delivering repeatable 1Vpp sync-to-blanking waveforms with sub-nanosecond edge control. Use Value: 1300V/µs slew rate and 12ns 0.1% settling enable clean square-wave generation up to 100MHz fundamental. |
Use Scenario: Signal conditioning in automated test equipment (ATE) for video IC characterization benches. IC Role / Device Role / Timing Role: High-Z input / low-Z output interface between arbitrary waveform generator and device-under-test input pins. Use Value: 1µA input bias current prevents DC loading errors on high-impedance DUT inputs during DC parametric testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unity-gain video buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4278EPA | Fixed +2V/V gain (6dB), 310MHz -3dB bandwidth, 1600V/µs slew rate | Used when signal boost is required before long cable runs or splitting; not interchangeable for unity-gain paths | Select MAX4278EPA only if system-level gain budget requires +2x amplification - gain mismatch will cause level errors in MAX4178EPA-replaced circuits |
| THS3091D | Single-ended output, 210MHz -3dB bandwidth, ±15V supply capable, higher quiescent current (11mA) | Preferred in industrial instrumentation with bipolar supplies >±12V; lacks integrated 75Ω drive optimization | Choose THS3091D only for non-video applications requiring wider supply range or higher output voltage swing - not validated for broadcast differential-phase specs |
Compared with MAX4278EPA and THS3091D, the MAX4178EPA uniquely balances unity-gain stability, 75Ω cable drive capability, and broadcast-grade video linearity - making it irreplaceable in legacy and new-design SD/HD analog routing hardware where gain = 1 is mandatory.
Availability
MAX4178EPA is available at Aetrix Electronics and suitable for broadcast video routing, medical imaging signal chains, and test equipment signal conditioning requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for MAX4178EPA 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) is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for precision, high-speed, and power-efficient applications.
The MAX4178EPA belongs to Maxim's high-speed video amplifier product line, engineered specifically for broadcast, medical, and instrumentation systems demanding ultra-low distortion, precise gain, and robust coaxial cable drive capability.
FAQ
What is the operating temperature range for MAX4178EPA?
The MAX4178EPA is specified for operation from –40°C to +85°C. This industrial temperature range ensures reliable performance in broadcast equipment racks, medical imaging carts, and factory-floor test instruments where ambient temperatures fluctuate significantly. All electrical parameters in the datasheet are guaranteed across this full range.
Can MAX4178EPA drive a 50Ω load, or is it limited to 75Ω?
Yes, the MAX4178EPA is explicitly characterized and qualified to drive both 50Ω and 75Ω loads. The datasheet confirms output voltage swing, distortion, and bandwidth specifications under RL = 50Ω and RL = 100Ω conditions. Its low output impedance (<0.1Ω) and high current capability (150mA short-circuit) make it equally effective in RF test fixtures (50Ω) and video infrastructure (75Ω).
Is MAX4178EPA pin-compatible with other packages in the MAX4178 family?
No - the MAX4178EPA (8-pin DIP) has a different pinout than the MAX4178EUK-T (SOT23-5) and MAX4178ESA (8-pin SO). While all share identical electrical functionality, the DIP package uses pins 1,2,5 for N.C., pin 3 for GND, pin 4 for IN, pin 6 for VCC, pin 7 for VEE, and pin 8 for OUT. SOT23-5 maps IN, VCC, GND, VEE, and OUT to pins 1–5 respectively. PCB layout is not interchangeable.
Does MAX4178EPA require external compensation components?
No, the MAX4178EPA is internally compensated for unity-gain stability and requires no external capacitors or resistors. Its hybrid feedback architecture eliminates the need for external feedback networks or compensation adjustments - simplifying design and improving repeatability across production units. Only local 0.1µF VCC/VEE bypass capacitors are mandatory.
What is the maximum capacitive load the MAX4178EPA can drive without oscillation?
The MAX4178EPA remains stable with capacitive loads up to 100pF, as confirmed in the datasheet's Typical Operating Characteristics (Figures 2a, 11–14). This accommodates PCB trace capacitance, connector stubs, and probe loading in most video applications. For loads exceeding 100pF, an isolation resistor (e.g., 20Ω) between OUT and CL is recommended to maintain phase margin.
MAX4178EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Buffer
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- -
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- -
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- -
- Voltage - Supply Span (Max):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4178EPA FAQ
1.How can I place an order for MAX4178EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4178EPA 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 MAX4178EPA reliable?
The price and inventory of MAX4178EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4178EPA is usually 5 days.
3.What payment methods are accepted for MAX4178EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4178EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4178EPA?
MAX4178EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4178EPA 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 MAX4178EPA?
For technical support, including MAX4178EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4178EPA requirements.
6.How does Aetrix verify that MAX4178EPA is sourced from the original manufacturer or authorized distributors?
All MAX4178EPA 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 MAX4178EPA meets industry standards.
7.What is the process for return or replacement of MAX4178EPA?
All MAX4178EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4178EPA, 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 MAX4178EPA part is unused and in its original packaging.
Return procedure for MAX4178EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4178EPA Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
