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Analog Devices Inc./Maxim Integrated MAX399C/D
- Part No.:
- MAX399C/D
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Die
- Datasheet:
-
MAX399C/D.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM DIE
- Quantity:
- Payment:
- Shipping:
Inventory:3,911
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Product details
Overview
MAX399C/D from Maxim Integrated is a dual 4-channel precision CMOS analog multiplexer designed for bidirectional signal routing in low-voltage, high-accuracy systems. It delivers <100Ω on-resistance (typ. 60Ω), <6Ω channel-to-channel RON matching, <5pC charge injection, and operates from ±3V to ±8V or +3V to +15V supplies. It serves as the signal path selector in battery-operated data-acquisition and military radio front-ends.
For engineers reviewing the MAX399C/D datasheet, MAX399C/D pinout, MAX399C/D application, or MAX399C/D equivalent, key selection criteria include guaranteed RON flatness (<11Ω), COM/NO off-leakage <2.5nA at +85°C, rail-to-rail analog handling, and compatibility with DG409/DG509A layouts.
Technical Context
The MAX399C/D implements a dual independent 4:1 analog mux architecture with TTL/CMOS-compatible digital control (A0, A1, EN). Each 4-channel section features separate COMA/COMB outputs and shared enable, enabling simultaneous or isolated channel selection. Its silicon-gate CMOS process ensures low power (<300µW) and ESD robustness (>2000V).
Switching behavior is characterized by break-before-make timing (150ns typ.), 250ns transition time, and minimal charge injection-critical for sample-and-hold integrity. Signal range remains rail-to-rail across supply configurations, with leakage and RON performance validated over –40°C to +85°C for industrial-grade variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Dual 4-channel analog multiplexer: two independent 4:1 switches with COMA/COMB outputs |
| On-resistance (RON) | 60Ω typical at ±5V; enables <1 LSB error in 12-bit systems with 1kΩ source impedance |
| RON matching | <6Ω max between channels; ensures gain consistency across multi-channel sensor interfaces |
| Charge injection | <5pC typical; limits voltage glitch to <5mV on 1µF hold capacitor in S/H circuits |
| Off-leakage (COM/NO) | <2.5nA at +85°C; preserves accuracy in high-impedance pH or thermocouple signal chains |
| Supply range | +3V to +15V single or ±3V to ±8V dual; supports portable +5V and ruggedized ±5V systems |
| Logic compatibility | TTL/CMOS inputs (VIL ≤ 0.8V, VIH ≥ 2.4V); interfaces directly with FPGA I/O and microcontroller GPIO |
Pinout & Package
Dice form factor: bare die without leadframe or molded package; intended for hybrid assembly or custom substrate mounting. Requires wire bonding to external pads per manufacturer's die map.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Binary address inputs | Select one of four NOx inputs per section (COMA/COMB); logic levels define channel mapping per truth table |
| EN | Active-high enable | Disables both sections when low; eliminates crosstalk and reduces supply current to <1µA |
| COMA, COMB | Analog common outputs | Bidirectional ports: serve as input during mux-to-ADC routing or output during DAC-to-load distribution |
| NO1A–NO4A, NO1B–NO4B | Analog input/output terminals | Four bidirectional channels per section; support signal routing in either direction without polarity restriction |
| V+, V−, GND | Power rails | V+ and V− set analog signal range; GND reference required only in single-supply mode (V− tied to GND) |
Key Features
| Feature | Design Value |
|---|---|
| PIN compatibility with DG409/DG509A | Direct layout reuse in legacy designs-no PCB revision needed for drop-in replacement |
| Guaranteed RON flatness | <11Ω variation over full ±4.5V signal range-preserves linearity in precision instrumentation |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping-essential for ±5V op-amp interfaces |
| ESD protection | >2000V HBM-reduces need for external protection in field-deployable test equipment |
| Low power consumption | <300µW at +5V-enables always-on monitoring in battery-powered guidance systems |
Applications
| Sample-and-Hold Circuits | Automatic Test Equipment |
|---|---|
Use Scenario: Selecting analog sensor outputs for periodic sampling into a 12-bit ADC with 1µF hold capacitor. IC Role / Device Role / Timing Role: Precision analog switch controlling acquisition window; low charge injection prevents hold-step error. Use Value: <5pC charge injection limits voltage disturbance to <5mV-meeting 12-bit (±1 LSB = 1.22mV) accuracy requirement. |
Use Scenario: Routing DUT signals to multiple measurement instruments (DMM, scope, spectrum analyzer) under microcontroller control. IC Role / Device Role / Timing Role: High-isolation signal router enabling concurrent multi-instrument testing without cross-coupling. Use Value: –75dB off-isolation and <2.5nA leakage ensure measurement integrity across 100kΩ+ instrument inputs. |
| Military Radios | Battery-Operated Systems |
Use Scenario: Switching between RF front-end filters and antenna paths in manpack radios operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Temperature-stable analog switch managing signal chain reconfiguration during mode transitions. Use Value: RON drift <15Ω from –40°C to +85°C ensures consistent insertion loss in critical comms paths. |
Use Scenario: Multiplexing outputs from multiple low-power sensors (temperature, humidity, accelerometer) to a shared ADC in handheld devices. IC Role / Device Role / Timing Role: Ultra-low-quiescent switch minimizing standby current while maintaining signal fidelity. Use Value: <1µA shutdown current (EN = low) extends battery life in sleep-mode intervals without sacrificing wake-up latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX399CEE | Same die, QSOP-16 packaged; includes leadframe, molding, and standard solderable terminations | Requires PCB footprint change; suitable for prototyping and low-volume production where dice assembly is impractical | Select MAX399CEE for rapid evaluation or small-batch builds needing standard packaging |
| ADG409BRUZ | 44Ω typical RON, 100ns tTRANS, but no guaranteed RON matching or <5pC charge injection spec | Better speed, weaker precision specs; acceptable in non-critical audio routing but not S/H or metrology | Choose ADG409BRUZ only when switching speed dominates over leakage and matching requirements |
Compared with MAX399C/D, MAX399CEE offers identical electrical performance in a manufacturable package, while ADG409BRUZ trades guaranteed precision for faster switching-making MAX399C/D optimal for high-fidelity, temperature-stable signal routing where parameter tolerances are design-critical.
Availability
MAX399C/D is available at Aetrix Electronics and suitable for military radios, battery-operated systems, and automatic test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX399C/D 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 and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX398/MAX399 family targets high-accuracy analog signal routing where low leakage, matched on-resistance, and rail-to-rail operation are essential-especially in portable and harsh-environment instrumentation.
FAQ
What is the maximum analog signal range supported by the MAX399C/D?
The MAX399C/D supports rail-to-rail analog signals from V− to V+. With ±5V supplies, this yields a ±4.5V range; with +5V single supply (V− = GND), it supports 0V to 4.5V. The device maintains specified RON flatness and leakage across these ranges, as verified in the Electrical Characteristics tables for dual and single-supply conditions.
Does the MAX399C/D require external protection diodes for overvoltage tolerance?
No-external diodes are not recommended for the MAX399C/D. Its absolute maximum ratings allow (V− − 2V) to (V+ + 2V) at any terminal, and internal protection diodes handle transient clamping. Adding external diodes reduces signal range without improving reliability, especially in single-supply configurations where they introduce forward-drop errors.
How does the MAX399C/D achieve guaranteed RON matching below 6Ω?
The MAX399C/D achieves <6Ω RON matching through laser-trimmed polysilicon resistor networks and matched transistor sizing in its silicon-gate CMOS process. This matching is 100% tested at temperature extremes and guaranteed across the full operating range-not just at +25°C-ensuring consistent gain in multi-channel sensor arrays using MAX399C/D.
Can the MAX399C/D operate with unbalanced supplies like +10V and –5V?
Yes-the MAX399C/D supports unbalanced supplies as long as V+ to V− differential stays within 17V and each rail remains within its absolute rating (V+ ≤ +17V, V− ≥ –17V). For example, +10V/–5V (15V total) is valid. Performance parameters such as RON and leakage are characterized across ±3V to ±8V and +3V to +15V, covering this use case.
What is the function of the exposed pad (EP) in QFN-packaged variants, and does the MAX399C/D dice version include it?
In QFN variants (e.g., MAX399CGE), the exposed pad (EP) must be connected to V+ for thermal and electrical stability. However, the MAX399C/D is a bare die-no EP structure exists. Die-level thermal management relies on the customer's substrate design, and electrical reference is established solely through bonded V+ and GND pads per the pin description table.
MAX399C/D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 6Ohm (Max)
- Voltage - Supply, Single (V+):
- 3V ~ 15V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 20pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
MAX399C/D FAQ
1.How can I place an order for MAX399C/D through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX399C/D 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 MAX399C/D reliable?
The price and inventory of MAX399C/D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX399C/D is usually 5 days.
3.What payment methods are accepted for MAX399C/D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX399C/D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX399C/D?
MAX399C/D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX399C/D 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 MAX399C/D?
For technical support, including MAX399C/D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX399C/D requirements.
6.How does Aetrix verify that MAX399C/D is sourced from the original manufacturer or authorized distributors?
All MAX399C/D 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 MAX399C/D meets industry standards.
7.What is the process for return or replacement of MAX399C/D?
All MAX399C/D units undergo pre-shipment inspection (PSI). If there is an issue with MAX399C/D, 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 MAX399C/D part is unused and in its original packaging.
Return procedure for MAX399C/D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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