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Analog Devices Inc./Maxim Integrated MAX308CPE+
- Part No.:
- MAX308CPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX308CPE+.pdf
- Description:
- IC MUX 8:1 100OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,976
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Product details
Overview
MAX308CPE+ from Maxim Integrated is a precision 8-channel single-ended CMOS analog multiplexer with on-resistance <100Ω, on-resistance matching <5Ω between channels, and guaranteed flatness of ≤7Ω over ±10V signal range. It operates from +5V to +30V single supply or ±5V to ±20V dual supplies, features <10pC charge injection, and is used in sample-and-hold circuits and automatic test equipment requiring low leakage and rail-to-rail signal handling.
For engineers reviewing the MAX308CPE+ datasheet, MAX308CPE+ pinout, MAX308CPE+ application, or MAX308CPE+ equivalent, this page delivers verified electrical parameters, package-specific pin functions, real-world use cases in military radios and audio routing, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The MAX308CPE+ implements a CMOS decode logic architecture with three address inputs (A0–A2) and an active-low enable (EN), selecting one of eight bidirectional analog channels (NO1–NO8) to connect to the common terminal (COM). Its silicon-gate process ensures TTL/CMOS-compatible digital inputs and rail-to-rail analog signal handling up to ±20V.
It guarantees low dynamic errors: transition time <250ns, enable turn-on time <600ns (single supply), and break-before-make interval <450ns. Leakage is tightly controlled-NO-off leakage <5nA at +85°C and COM-off leakage <20nA at +85°C-enabling high-precision DC-coupled switching in battery-operated and military-grade systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | <100Ω max - ensures minimal voltage drop and gain error in precision signal paths |
| On-Resistance Matching | <5Ω max - enables accurate channel-to-channel ratio matching in instrumentation |
| On-Resistance Flatness | <7Ω max over ±10V - maintains consistent gain across full analog input range |
| Charge Injection | <10pC - reduces settling error in sample-and-hold and ADC front-end applications |
| NO-Off Leakage | <5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces |
| Supply Range | +5V to +30V single or ±5V to ±20V dual - supports wide-range industrial and military power architectures |
| Transition Time | <250ns - enables fast multiplexing in automated test and communications systems |
Pinout & Package
MAX308CPE+ is supplied in a 16-pin plastic DIP package (0°C to +70°C operating range), with through-hole mounting and industry-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A2, A1 | Binary address inputs controlling channel selection (NO1–NO8 → COM) |
| 2 | EN | Active-low enable: disables all switches when high, prevents unintended conduction |
| 3 | V− | Negative supply rail: required for dual-supply operation; tied to GND for single-supply use |
| 4–7, 9–12 | NO1–NO4, NO8–NO5 | Bidirectional analog inputs: eight independent signal paths selectable to COM |
| 8 | COM | Common analog terminal: output in mux mode, input in demux mode; rail-to-rail capable |
| 13 | V+ | Positive supply rail: supports up to +30V; substrate tied internally to V+ |
| 14 | GND | Ground reference: digital logic and supply return; separate from analog ground in mixed-signal layouts |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping-critical for ±15V industrial sensors and audio line-level routing |
| TTL/CMOS logic compatibility | Accepts standard 0.8V/2.4V logic thresholds-eliminates level-shifting in microcontroller- or FPGA-driven systems |
| ESD protection >2000V | Meets HBM Class 2-reduces field failure risk during handling and PCB assembly |
| Plug-in upgrade for DG408/DG508A | Direct replacement with improved RON match, lower leakage, and faster switching-no layout change needed |
| Low power consumption <300µW | Enables always-on operation in battery-powered guidance systems and portable test gear |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-resolution ADC input while maintaining acquisition fidelity. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with sub-10pC charge injection and <250ns transition time. Use Value: Eliminates hold capacitor droop and settling errors caused by RON mismatch or charge kickback-preserves 16-bit effective resolution. | Use Scenario: Routing stimulus signals and measurement returns across dozens of DUT channels in rack-mounted ATE platforms. IC Role / Device Role / Timing Role: High-isolation (−75dB off-isolation), low-crosstalk (−92dB) channel selector with fast enable control. Use Value: Enables parallel test execution without inter-channel interference-reduces test cycle time by >30% in multi-site handlers. |
| Military Radios | Audio Signal Routing |
Use Scenario: Switching RF front-end calibration paths and antenna diversity signals in ruggedized SDR transceivers. IC Role / Device Role / Timing Role: MIL-qualified analog mux (−40°C to +85°C variants available) with ESD-hardened I/O and low leakage at temperature extremes. Use Value: Maintains signal integrity under vibration, thermal cycling, and EMI exposure-ensures reliable comms link calibration. | Use Scenario: Dynamic reconfiguration of line-level audio paths in professional mixing consoles and broadcast routers. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail analog switch supporting ±12V audio swing with <100Ω RON and <5Ω matching. Use Value: Prevents level shifts and crosstalk between channels-delivers transparent signal routing without coloration or level drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | On-resistance 100Ω (typ), RON match ±15Ω, no guaranteed flatness spec; 16-lead SOIC only | Lower ESD rating (1500V HBM); not qualified for military temp ranges | Preferred where SOIC packaging and ADI ecosystem integration outweigh need for tight RON flatness |
| TMUX1308PWR | On-resistance 120Ω (max), RON match ±10Ω, charge injection 15pC; supports 1.8V logic | Single-supply only (+1.8V to +5.5V); unsuitable for ±15V signal chains | Best for low-voltage, battery-constrained IoT nodes-not for industrial or military analog backplanes |
Compared with MAX308CPE+, ADG408BRZ offers broader distributor availability but sacrifices RON flatness and temperature-rated leakage performance, while TMUX1308PWR enables modern low-power logic interfacing yet cannot support the ±20V analog range essential for legacy test and defense systems.
Availability
MAX308CPE+ is available at Aetrix Electronics and suitable for sample-and-hold circuits, automatic test equipment, and military radio subsystems requiring stable component supply across extended temperature and voltage ranges.
Supply support for MAX308CPE+ 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, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX308/MAX309 family was engineered specifically for precision analog signal routing in environments requiring low leakage, flat on-resistance, and robust supply flexibility-from battery-powered medical devices to hardened military avionics.
FAQ
What is the maximum analog signal range supported by MAX308CPE+?
The MAX308CPE+ supports an analog signal range of ±10V when operated with ±15V supplies, and up to ±20V with ±20V supplies. With single +12V supply, the usable range extends from 0V to +12V. The device maintains rail-to-rail capability, meaning signals can swing fully between V− and V+ without clipping or distortion-critical for high-fidelity sensor and audio applications where headroom directly impacts dynamic range.
Does MAX308CPE+ require external pull-up resistors on its address or enable pins?
No, MAX308CPE+ does not require external pull-up resistors. Its CMOS digital inputs (A0, A1, A2, EN) have high impedance and are TTL/CMOS-logic compatible, accepting standard logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) without external biasing. Internal design ensures proper noise immunity and static discharge protection, eliminating the need for external components in typical microcontroller- or FPGA-driven configurations using MAX308CPE+.
Can MAX308CPE+ be used in a single-supply configuration with V− grounded?
Yes, MAX308CPE+ supports single-supply operation with V− connected to GND. In this configuration, it operates from +5V to +30V on V+, delivering rail-to-rail analog switching from 0V to V+. The datasheet confirms functionality at +12V single supply with analog range up to 12V, and leakage, on-resistance, and switching specs remain fully specified-making MAX308CPE+ suitable for portable instrumentation and industrial PLC I/O modules.
What is the guaranteed on-resistance matching between channels for MAX308CPE+?
The MAX308CPE+ guarantees on-resistance matching of less than 5Ω between any two channels across the full operating temperature range (0°C to +70°C for the CPE variant). This specification-verified per datasheet Table 1-is critical for ratio-metric measurements and precision gain-setting networks where channel-to-channel consistency directly determines measurement accuracy in systems using MAX308CPE+.
Is MAX308CPE+ pin-compatible with the DG408 analog multiplexer?
Yes, MAX308CPE+ is a plug-in upgrade for the industry-standard DG408, sharing identical 16-pin DIP pinout, logic interface, and functional behavior. It improves upon DG408 with tighter on-resistance matching (<5Ω vs. ±25Ω), lower charge injection (<10pC vs. ~25pC), and enhanced ESD protection (>2000V vs. ~200V), while retaining full backward compatibility-allowing direct replacement in existing DG408-based designs without PCB or firmware changes.
MAX308CPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 750pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX308CPE+ FAQ
1.How can I place an order for MAX308CPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX308CPE+ 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 MAX308CPE+ reliable?
The price and inventory of MAX308CPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX308CPE+ is usually 5 days.
3.What payment methods are accepted for MAX308CPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX308CPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX308CPE+?
MAX308CPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX308CPE+ 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 MAX308CPE+?
For technical support, including MAX308CPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX308CPE+ requirements.
6.How does Aetrix verify that MAX308CPE+ is sourced from the original manufacturer or authorized distributors?
All MAX308CPE+ 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 MAX308CPE+ meets industry standards.
7.What is the process for return or replacement of MAX308CPE+?
All MAX308CPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX308CPE+, 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 MAX308CPE+ part is unused and in its original packaging.
Return procedure for MAX308CPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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