My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4121CSA-TG068
- Part No.:
- MAX4121CSA-TG068
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4121CSA-TG068.pdf
- Description:
- IC SW SPDTX2 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:950
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4121CSA-TG068 from Maxim Integrated is an 8-pin SO packaged SPDT analog video switch optimized for broadcast-quality composite and RGB video routing. It delivers -3dB bandwidth of 330MHz, 0.1dB gain flatness to 150MHz, differential phase/gain error of 0.01°/0.01%, ultra-low 13mV switching glitch, and -92dB crosstalk at 30MHz - enabling high-fidelity HDTV signal multiplexing in video-router arrays.
For engineers reviewing the MAX4121CSA-TG068 datasheet, MAX4121CSA-TG068 pinout, MAX4121CSA-TG068 application, or MAX4121CSA-TG068 equivalent, key selection criteria include its ±5V dual-supply operation, high-Z disable mode (250µA supply current), 3pF input capacitance, 700V/µs slew rate, and compatibility with 75Ω video line driving requirements in real-time broadcast infrastructure.
Technical Context
The MAX4121CSA-TG068 implements a make-before-break SPDT switching architecture with open-loop unity-gain buffer amplifiers, enabling stable driving of capacitive loads without oscillation. Its complementary bipolar process ensures low input capacitance (3pF) and dynamic output resistance (~20Ω), supporting wideband video signal integrity up to 330MHz.
It features transparent digital control (no internal latches), logic-level EN and A0 inputs for channel selection, and a high-impedance disable state that isolates outputs while reducing total supply current to 250µA - critical for scalable crosspoint array power management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 330MHz - supports full HD and HDTV baseband video signals without attenuation |
| 0.1dB Gain Flatness | 150MHz - preserves color fidelity and luminance accuracy across NTSC/PAL/SECAM spectra |
| Slew Rate | 700V/µs - enables clean transient response for fast-rising sync pulses and digital video edges |
| Differential Phase/Gain | 0.01°/0.01% - meets broadcast-grade timing and amplitude linearity requirements |
| Switching Glitch | 13mVp-p positive pulse - avoids misinterpretation as negative sync signal in composite video systems |
| Crosstalk / Off Isolation | -92dB / -78dB at 30MHz - prevents interference between active and inactive channels in dense routing arrays |
| Input Capacitance | 3pF - minimizes loading on upstream drivers and preserves high-frequency signal integrity |
| Disabled Supply Current | 250µA - enables low-power standby in large-scale video matrix systems |
Pinout & Package
MAX4121CSA-TG068 is housed in an 8-pin narrow SO package (SOIC-8, 150-mil width), compliant with JEDEC MS-012, with dimensions 4.9mm × 3.9mm × 1.45mm (max height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Output Enable Control | Active-high logic input; drives output to high-impedance state when low, reducing ICC/IEE to 250µA |
| 2 (VCC) | Positive Supply Rail | +5V analog supply; requires local 0.1µF + 1000pF ceramic bypassing per layout guidelines |
| 3 (OUT) | Buffered Signal Output | Unity-gain buffered output capable of driving 5kΩ resistive or unspecified capacitive loads stably |
| 4 (VEE) | Negative Supply Rail | -5V analog supply; decoupled separately to minimize ground bounce in dual-supply video paths |
| 5 (IN1) | Analog Input Channel 1 | High-impedance (30MΩ) video input; isolated by internal GND pins to prevent feedthrough during switching |
| 6 (GND) | Analog Ground Reference | Noise-sensitive signal ground; must be kept low-impedance and separate from digital/power grounds |
| 7 (IN0) | Analog Input Channel 0 | Primary video source input; selected when A0 = 0 and EN = 1 |
| 8 (A0) | Channel Select Bit | Single-bit address input determining IN0 (A0=0) or IN1 (A0=1) path to OUT when EN=1 |
Key Features
| Feature | Design Value |
|---|---|
| Make-before-break switching | Eliminates signal dropout during channel transitions, essential for uninterrupted broadcast video streams |
| Constant high input impedance | 30MΩ input resistance prevents loading of upstream video sources and maintains source signal integrity |
| Ultra-low 13mV switching glitch | Positive-polarity transient avoids false triggering of sync detection circuits in composite video receivers |
| Open-loop buffer architecture | Enables stable operation into capacitive loads (e.g., long coaxial cables) without external compensation |
| High-Z disable mode | Reduces system quiescent current by >95% versus active state, enabling power-scalable video matrix designs |
Applications
| Video Router Arrays | Broadcast HDTV Multiplexing |
|---|---|
Use Scenario: Large-scale SDI/HDMI distribution systems requiring dynamic reconfiguration of multiple camera feeds to monitors or encoders. IC Role / Device Role / Timing Role: SPDT video switch providing low-glitch, high-isolation path selection between two analog video sources and one output bus. Use Value: -92dB crosstalk and 0.01° differential phase ensure no visible color shift or timing jitter when switching live broadcast feeds. | Use Scenario: Studio-grade RGB or component video routing in master control rooms handling NTSC/PAL/SECAM standards. IC Role / Device Role / Timing Role: Buffered analog switch maintaining DC-coupled signal integrity and sub-0.01% gain accuracy across full 150MHz flatness band. Use Value: 330MHz -3dB bandwidth supports future-proof routing of 1080p60 and 4Kp30 baseband signals without bandwidth limiting. |
| RF/IF Signal Routing | Graphics Color-Signal Switching |
Use Scenario: IF-stage signal selection in multi-band satellite receivers or spectrum analyzers operating up to 300MHz. IC Role / Device Role / Timing Role: High-linearity analog switch used in RF front-end signal path selection prior to demodulation or digitization. Use Value: -78dB off-isolation prevents LO leakage and intermodulation distortion between adjacent RF channels. | Use Scenario: Real-time VGA/DVI color-space switching in medical imaging displays or CAD workstations. IC Role / Device Role / Timing Role: Low-latency, low-distortion RGB channel selector preserving gamma curve fidelity and pixel timing alignment. Use Value: 700V/µs slew rate ensures accurate reproduction of sharp-edged graphics and text without edge ringing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog video switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8170ARZ | Single 2:1 mux, 325MHz bandwidth, ±5V supply, but higher 25mV switching glitch and no high-Z disable mode | Lacks 250µA low-power disable state; unsuitable for power-constrained matrix arrays | Prefer MAX4121CSA-TG068 where low-quiescent power and glitch suppression are mandatory |
| TS3V330PW | 3.3V single-supply SPDT, 350MHz bandwidth, but only 0.5Vpp input range and no ±5V video compliance | Not rated for broadcast-level 1Vpp–2Vpp composite video signals; limited to LVCMOS-level routing | Choose MAX4121CSA-TG068 for true analog video signal integrity in professional infrastructure |
Compared with AD8170ARZ and TS3V330PW, the MAX4121CSA-TG068 uniquely combines broadcast-grade differential phase/gain performance, ±5V rail-to-rail video signal handling, ultra-low positive glitch, and high-Z disable - making it the only option qualified for mission-critical HDTV router designs requiring simultaneous bandwidth, fidelity, and power efficiency.
Availability
MAX4121CSA-TG068 is available at Aetrix Electronics and suitable for video-router arrays, broadcast HDTV multiplexing, and RF/IF signal routing requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and broadcast OEM programs.
Supply support for MAX4121CSA-TG068 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, mixed-signal, and RF solutions for demanding signal-chain applications.
The MAX4111/MAX4121/MAX4221 family was designed specifically as modular building blocks for scalable, high-density video crosspoint arrays - prioritizing broadcast-grade signal fidelity, low-glitch switching, and power-efficient disable states over general-purpose switching versatility.
FAQ
What is the maximum operating supply voltage for MAX4121CSA-TG068?
The MAX4121CSA-TG068 has absolute maximum supply ratings of VCC = +6V and VEE = -6V, with recommended operating supply of ±5V. Operation outside ±4.5V to ±5.5V may degrade AC performance including gain flatness and crosstalk. The MAX4121CSA-TG068 is not specified for single-supply use and requires true dual-rail biasing for proper video signal swing and DC offset control.
Does MAX4121CSA-TG068 support make-before-break switching?
Yes, the MAX4121CSA-TG068 implements make-before-break switching to eliminate signal dropout during channel transitions. This behavior is inherent to its internal architecture and is confirmed in the Applications Information section, where it is stated that "Make-before-break switching is used to reduce noise and glitches, even when switching from part to part in large arrays." The MAX4121CSA-TG068 achieves this without external timing components or latch control.
What is the input voltage range specification for MAX4121CSA-TG068?
The MAX4121CSA-TG068 specifies an analog input voltage range of ±2.5V under standard operating conditions (VS = ±5V). This allows full handling of 1Vpp composite video signals with headroom for sync tips and overshoot. The device is not rated for rail-to-rail input beyond ±2.5V, and exceeding this range risks increased distortion or clipping, as confirmed in the Electrical Characteristics table under "Input Voltage Range" parameter.
Can MAX4121CSA-TG068 drive 75Ω video lines directly?
The MAX4121CSA-TG068 is not characterized to drive 75Ω coaxial video lines directly into a terminated load. Its output is specified for 5kΩ resistive loads and unspecified capacitive loads. Driving 75Ω requires external series termination or a dedicated video driver stage, as noted in the Applications Information section: "cable drivers have not been included in the switch design because of the high-power drive required." For 75Ω interface, use MAX4121CSA-TG068 as a front-end selector feeding a dedicated video line driver.
Is there a thermal shutdown feature in MAX4121CSA-TG068?
No, the MAX4121CSA-TG068 does not include thermal shutdown protection. The Absolute Maximum Ratings specify a junction temperature limit of +150°C, but the device lacks internal circuitry to detect or respond to thermal overload. System-level thermal management - including PCB copper area, airflow, and ambient temperature control - must ensure junction temperature remains within limits during continuous operation at full supply current (5.5mA max).
MAX4121CSA-TG068 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT - Open/Closed
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 4.5V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 500ns, 1µs
- -3db Bandwidth:
- 330MHz
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -92dB
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4121CSA-TG068 FAQ
1.How can I place an order for MAX4121CSA-TG068 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4121CSA-TG068 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 MAX4121CSA-TG068 reliable?
The price and inventory of MAX4121CSA-TG068 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4121CSA-TG068 is usually 5 days.
3.What payment methods are accepted for MAX4121CSA-TG068?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4121CSA-TG068 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4121CSA-TG068?
MAX4121CSA-TG068 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4121CSA-TG068 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 MAX4121CSA-TG068?
For technical support, including MAX4121CSA-TG068 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4121CSA-TG068 requirements.
6.How does Aetrix verify that MAX4121CSA-TG068 is sourced from the original manufacturer or authorized distributors?
All MAX4121CSA-TG068 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 MAX4121CSA-TG068 meets industry standards.
7.What is the process for return or replacement of MAX4121CSA-TG068?
All MAX4121CSA-TG068 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4121CSA-TG068, 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 MAX4121CSA-TG068 part is unused and in its original packaging.
Return procedure for MAX4121CSA-TG068:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4121CSA-TG068 Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
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…
