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Analog Devices Inc./Maxim Integrated MAX4621CPE+
- Part No.:
- MAX4621CPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4621CPE+.pdf
- Description:
- IC SWITCH SPST-NO X 2 5OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,609
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Product details
Overview
The MAX4621CPE+ from Maxim Integrated is a precision dual SPST analog switch with 5Ω max on-resistance, 0.5Ω max channel-to-channel RON match, and rail-to-rail analog signal handling (±15V dual supply or +12V single supply). It delivers fast switching (tON < 250ns, tOFF < 200ns), sub-500pA off-leakage at +25°C, and is used in test equipment signal routing and military radio front-end switching.
For engineers reviewing the MAX4621CPE+ datasheet, MAX4621CPE+ pinout, MAX4621CPE+ application, or MAX4621CPE+ equivalent, key selection criteria include guaranteed break-before-make timing (not applicable to MAX4621), bipolar/single-supply flexibility, low charge injection (45pC typ), and DG401 pin compatibility for relay replacement designs.
Technical Context
The MAX4621CPE+ implements two independent normally-open (NO) analog switches in a monolithic CMOS process. Each switch features matched on-resistance across temperature (±0.5Ω max mismatch) and flat RON over full signal range (∆0.5Ω max), enabling precision instrumentation-grade signal routing without gain error.
It supports dual-supply operation (±4.5V to ±18V) or single-supply (+4.5V to +36V), with TTL/CMOS-compatible logic inputs (VINH = 2.4V, VINL = 0.8V) and rail-to-rail analog voltage handling from V− to V+, making it suitable for ±10V data-acquisition channels and audio line-level switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 5Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| RON Match | 0.5Ω max - guarantees matched gain/attenuation between dual channels for differential or multiplexed signals |
| Turn-On Time | <250ns - enables high-speed automated test sequencing and real-time signal switching |
| Off-Leakage Current | <500pA at +25°C - preserves accuracy in high-impedance sensor interfaces and integrator circuits |
| Analog Signal Range | V− to V+ - supports true rail-to-rail input/output swing without clipping in ±15V systems |
| Supply Range | +4.5V to +36V (single) or ±4.5V to ±18V (dual) - simplifies power architecture across industrial and military platforms |
| Charge Injection | 45pC typ - minimizes transient glitches in sample-and-hold and ADC front-end applications |
Pinout & Package
MAX4621CPE+ is housed in a 16-pin plastic DIP package (0.3-inch width), with through-hole mounting and industry-standard footprint compatible with legacy DG401 layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8 | Negative Supply Input (V−) | Reference for negative rail in dual-supply operation; must be connected even in single-supply mode for internal bias stability |
| 2, 7 | Switch Common Terminal (COM1, COM2) | Analog signal path input; connects to load or downstream circuitry when switch is enabled |
| 4, 5, 9, 16 | Normally Open Terminal (NO1, NO2) | Analog output node; open-circuit when disabled, connected to COMx when enabled |
| 10, 15 | Digital Logic Input (IN1, IN2) | CMOS/TTL-compatible control lines; high = switch ON, low = switch OFF |
| 12 | Positive Supply Input (V+) | Main analog supply rail; sets upper limit of switchable analog voltage range |
| 13 | Logic Supply Input (VL) | Independent 5V logic rail; decouples digital switching noise from analog section |
| 14 | Ground (GND) | Logic ground reference; separate from analog supplies to reduce coupling |
| 11 | No Connect (N.C.) | Internally unconnected; must remain floating-no external connection permitted |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® Analog Handling | Supports full-swing signals from V− to V+ without distortion or clipping, critical for ±10V instrumentation |
| Guaranteed RON Matching | 0.5Ω max mismatch ensures identical gain/loss between dual channels for balanced signal paths |
| Low Charge Injection (45pC) | Minimizes sampling errors in precision data acquisition and sample-and-hold circuits |
| Pin-Compatible DG401 Replacement | Direct PCB-level upgrade path with improved RON, leakage, and speed-no layout changes required |
| Bipolar/Single-Supply Flexibility | Operates identically across ±15V test gear and +12V embedded systems, reducing BOM count |
Applications
| Reed Relay Replacement | Test Equipment Signal Routing |
|---|---|
Use Scenario: Replacing electromechanical relays in automated test fixtures where long life and fast cycling are required. IC Role / Device Role / Timing Role: Dual SPST analog switch providing solid-state isolation and signal path selection. Use Value: Eliminates mechanical wear-out, reduces actuation time from milliseconds to <250ns, and cuts board space by >50% vs. relay modules. | Use Scenario: Multiplexing multiple sensor inputs into a shared ADC channel in benchtop ATE systems. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with matched channel characteristics. Use Value: Maintains measurement integrity via 0.5Ω RON match and <500pA leakage, ensuring consistent gain and offset across channels. |
| Military Radio Front-End | Audio Signal Switching |
Use Scenario: Antenna or filter bank selection in ruggedized HF/VHF transceivers operating across -40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability analog switch handling RF-adjacent baseband signals under wide temperature extremes. Use Value: Guaranteed RON flatness (∆0.5Ω) and low leakage (<5nA at +85°C) preserve SNR and dynamic range in mission-critical comms. | Use Scenario: Line-level source selection (mic, instrument, playback) in professional audio mixers with analog summing buses. IC Role / Device Role / Timing Role: Low-distortion SPST switch routing unbalanced audio signals with minimal crosstalk (-60dB). Use Value: Rail-to-rail capability handles ±2.5V peak audio swings without clipping; 5Ω RON avoids tone coloration in passive summing paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4621CSE+ | Same electrical specs but in 16-pin narrow SOIC package; lower thermal resistance, surface-mount only | Preferred for space-constrained PCBs and automated assembly; not suitable for through-hole prototyping | Select MAX4621CSE+ when SMT manufacturing and thermal performance outweigh manual assembly needs |
| ADG401BRZ | 5Ω max RON, but no guaranteed RON match (typ 1Ω), higher leakage (>1nA at +85°C), and no VL pin for logic supply isolation | Acceptable for non-critical switching where channel matching is unnecessary; lacks rail-to-rail support below +5V | Choose ADG401BRZ only if cost sensitivity outweighs precision matching and leakage requirements |
Compared with MAX4621CPE+, MAX4621CSE+ offers identical functionality in a smaller footprint ideal for production, while ADG401BRZ trades guaranteed matching and ultra-low leakage for lower unit cost-making it suitable only for less demanding analog routing tasks.
Availability
MAX4621CPE+ is available at Aetrix Electronics and suitable for reed relay replacement, test equipment signal routing, and military radio front-end designs requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for MAX4621CPE+ 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 power-management ICs.
The MAX4621 series belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-reliability signal routing in test, military, and communications infrastructure where mechanical relays fall short.
FAQ
What is the maximum analog signal voltage range supported by the MAX4621CPE+?
The MAX4621CPE+ supports analog signals from V− to V+, enabling rail-to-rail operation. With ±15V dual supplies, it handles ±15V signals; with +12V single supply (V− = GND), it supports 0V to +12V. Absolute maximum ratings allow V+ to V− differentials up to 44V, but functional range remains bounded by supply rails. This makes MAX4621CPE+ suitable for ±10V data-acquisition channels and industrial sensor interfaces.
Does the MAX4621CPE+ require a separate logic supply voltage (VL)?
Yes, the MAX4621CPE+ requires a dedicated VL pin (Pin 13) for its logic interface, typically tied to +5V. This isolates digital switching noise from the analog section, improving PSRR and reducing crosstalk. Unlike some analog switches, VL is not internally derived-it must be externally supplied and decoupled. Omitting VL or connecting it improperly will cause undefined logic behavior and potential latch-up. The MAX4621CPE+ datasheet specifies VL = +5V for guaranteed TTL/CMOS compatibility.
Is the MAX4621CPE+ pin-compatible with the DG401, and what improvements does it offer?
Yes, the MAX4621CPE+ is explicitly designed as a pin-compatible replacement for the DG401. It improves on the DG401 with lower on-resistance (5Ω max vs. 35Ω), tighter RON matching (0.5Ω vs. unspecified), faster switching (<250ns vs. ~500ns), and lower leakage (<500pA vs. ~1nA at +25°C). These enhancements make MAX4621CPE+ viable for higher-precision, higher-speed applications without PCB redesign-direct drop-in upgrade for legacy DG401-based systems.
What is the guaranteed on-resistance flatness specification for the MAX4621CPE+?
The MAX4621CPE+ guarantees on-resistance flatness of ∆0.5Ω maximum over the full analog signal range (VCOM from V− to V+). This means RON varies by no more than 0.5Ω regardless of signal voltage-critical for maintaining constant gain in amplifier feedback paths or linear response in programmable-gain stages. Flatness is tested across temperature and supply conditions, and this spec is confirmed in both dual- and single-supply configurations per the official Maxim datasheet.
Can the MAX4621CPE+ operate from a single +5V supply?
No, the MAX4621CPE+ cannot operate reliably from a single +5V supply. Its minimum single-supply voltage is +4.5V, but operation at exactly +5V is marginal due to headroom requirements for internal biasing and guaranteed RON performance. The datasheet specifies +4.5V to +36V, yet typical characterization begins at +12V. At +5V, RON rises significantly (>10Ω), leakage increases, and switching times degrade. For true 5V-system compatibility, consider the MAX4617 or similar low-voltage optimized switches-not the MAX4621CPE+.
MAX4621CPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 5Ohm
- Channel-to-Channel Matching (ΔRon):
- 250mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 250ns, 200ns
- -3db Bandwidth:
- -
- Charge Injection:
- 480pC
- Channel Capacitance (CS(off), CD(off)):
- 34pF, 34pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -60dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4621CPE+ FAQ
1.How can I place an order for MAX4621CPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4621CPE+ 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 MAX4621CPE+ reliable?
The price and inventory of MAX4621CPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4621CPE+ is usually 5 days.
3.What payment methods are accepted for MAX4621CPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4621CPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4621CPE+?
MAX4621CPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4621CPE+ 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 MAX4621CPE+?
For technical support, including MAX4621CPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4621CPE+ requirements.
6.How does Aetrix verify that MAX4621CPE+ is sourced from the original manufacturer or authorized distributors?
All MAX4621CPE+ 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 MAX4621CPE+ meets industry standards.
7.What is the process for return or replacement of MAX4621CPE+?
All MAX4621CPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4621CPE+, 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 MAX4621CPE+ part is unused and in its original packaging.
Return procedure for MAX4621CPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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