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Analog Devices Inc./Maxim Integrated MAX4528CUA+
- Part No.:
- MAX4528CUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4528CUA+.pdf
- Description:
- IC SWITCH SPDT X 2 110OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:185
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Product details
Overview
The MAX4528CUA+ from Maxim Integrated is a low-voltage, CMOS phase-reversal analog switch optimized for chopper-stabilized amplifiers and balanced modulators. It operates from ±2.7V to ±6V dual supplies or +2.7V to +12V single supply, features 110Ω max on-resistance (±5V), 5pC max charge injection, <100ns transition time, and rail-to-rail analog signal handling from V− to V+.
For engineers reviewing the MAX4528CUA+ datasheet, MAX4528CUA+ pinout, MAX4528CUA+ application, or MAX4528CUA+ equivalent, key selection criteria include on-resistance matching (≤7Ω), leakage current (0.5nA at +25°C), TTL/CMOS-compatible logic thresholds, ESD protection (>2kV), and µMAX-8 package suitability for space-constrained chopper and modulation circuits.
Technical Context
The MAX4528CUA+ implements a bridge-configured phase-reversal topology with two normally open and two normally closed switches, enabling polarity inversion of balanced differential signals under IN control. Its internal gate drive uses out-of-phase V+ and V− signals to parallel N- and P-channel MOSFETs per path, ensuring DC continuity and high off-isolation (−68dB).
It supports true rail-to-rail analog operation (V− to V+) with no ground reference required for signal paths; leakage flows exclusively to V+ or V− via ESD diodes-not GND-enabling bipolar or single-supply use without signal degradation. Logic inputs tolerate voltages down to V−, allowing direct interface with bipolar carrier waveforms in modulator applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2.7V to ±6V dual or +2.7V to +12V single - enables flexible biasing in chopper amps and portable test gear |
| On-Resistance (RON) | 110Ω max (±5V) - ensures minimal gain error and thermal drift in precision signal paths |
| Charge Injection | 5pC max - limits voltage glitch and settling error during switching in auto-zeroing circuits |
| Transition Time | <100ns (±5V) - supports carrier frequencies up to 100kHz in balanced modulators |
| Leakage Current | 0.5nA at +25°C - preserves DC accuracy in high-impedance sensor front-ends |
| Logic Thresholds | VINH = 1.6–2.4V, VINL = 0.8–1.6V - guarantees reliable TTL/CMOS compatibility across supply voltages |
| ESD Protection | >2kV per Method 3015.7 - enhances robustness in lab and industrial test equipment environments |
Pinout & Package
The MAX4528CUA+ is housed in an 8-pin µMAX package (2.1mm × 1.6mm, 0.5mm pitch), optimized for high-density PCB layouts in portable instrumentation and embedded signal conditioning modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 A | Analog input/output terminal | Connected to Y when IN = LOW; to X when IN = HIGH - forms one half of phase-reversal pair |
| 2 B | Analog input/output terminal | Connected to X when IN = LOW; to Y when IN = HIGH - complements A for balanced signal routing |
| 3 GND | Digital ground reference | Reference for logic circuitry only; analog paths are fully floating between V+ and V− |
| 4 IN | Logic-level control input | TTL/CMOS-compatible; accepts voltages from V− to V+ - enables direct carrier-wave driving in modulators |
| 5 V− | Negative analog supply | Set to GND for single-supply operation; defines lower analog signal limit and P-FET gate drive strength |
| 6 Y | Analog output/input terminal | Output when IN = LOW (A→Y, B→X); output when IN = HIGH (A→X, B→Y) - designated for inverted-phase path |
| 7 X | Analog output/input terminal | Output when IN = LOW (B→X); output when IN = HIGH (A→X) - designated for non-inverted-phase path |
| 8 V+ | Positive analog/digital supply | Powers analog switches and logic; internally tied to substrate - requires local 0.1µF ceramic bypass |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Analog range spans V− to V+, eliminating clipping in ±5V chopper amplifier feedback loops |
| 7Ω max on-resistance match | Ensures matched gain and phase response between A/B paths - critical for carrier suppression in modulators |
| Break-before-make timing | 1–20ns delay prevents momentary short-circuit during polarity reversal - avoids signal transients |
| 1.0µA max supply current | Minimizes power draw in battery-powered data acquisition systems and handheld test tools |
| On-resistance flatness | 9–15Ω variation over full analog range - maintains consistent gain across ±3V input signals |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
|
Use Scenario: Used in auto-zeroing op-amp feedback paths to reverse input polarity at precise intervals for offset cancellation. IC Role / Device Role / Timing Role: Phase-reversal switch toggling analog signal polarity synchronously with chopper clock; provides bidirectional, low-leakage, low-charge-injection signal path. Use Value: Enables sub-µV offset stability by minimizing switching-induced errors (<5pC charge injection) and maintaining matched RON (≤7Ω) between paths. |
Use Scenario: Implements carrier-synchronous signal inversion in RF demodulation stages for AM/SSB receivers. IC Role / Device Role / Timing Role: Balanced analog switch controlled by square-wave carrier applied to IN pin; routes differential inputs to outputs with polarity reversal. Use Value: Achieves >68dB carrier suppression due to tight RON matching and symmetric capacitance (13pF), reducing unwanted mixing products. |
| Data Acquisition Front-Ends | Audio-Signal Routing |
|
Use Scenario: Selects and inverts sensor signals (e.g., thermocouple, strain gauge) prior to ADC sampling in multi-channel industrial DAQ systems. IC Role / Device Role / Timing Role: Low-leakage (0.5nA @ +25°C), rail-to-rail analog switch enabling DC-coupled, high-Z sensor interfacing with programmable polarity. Use Value: Preserves microvolt-level signal integrity over temperature (20nA @ +85°C) while supporting wide supply range (+2.7V to +12V) for mixed-voltage systems. |
Use Scenario: Routes and flips left/right audio channels in professional mixer ICs requiring polarity correction or mono-summing. IC Role / Device Role / Timing Role: Bidirectional analog switch with <100ns transition time and −70dB off-isolation, preventing crosstalk between stereo paths. Use Value: Delivers low THD across audio band via low on-resistance flatness (9Ω) and minimized charge injection, avoiding audible switching artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-reversal analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4526CUA+ | Single-pole double-throw (SPDT) configuration; no bridge topology - lacks inherent phase-reversal capability | Suitable for basic signal routing but cannot perform polarity inversion without external wiring | Select MAX4526CUA+ only when discrete SPDT switching suffices and board area allows external bridging components |
| ADG1419BRMZ | Higher on-resistance (1.3Ω typical), wider supply (±15V), but no guaranteed ≤7Ω matching or 5pC charge injection spec | Better for high-voltage industrial I/O, less optimal for precision chopper amps requiring tight matching | Choose ADG1419BRMZ when operating beyond ±6V or needing higher ESD rating (4kV), not for low-error chopper designs |
Compared with MAX4528CUA+, MAX4526CUA+ requires external components to emulate phase reversal and sacrifices matching performance, while ADG1419BRMZ trades precision matching and ultra-low charge injection for higher voltage tolerance-making MAX4528CUA+ uniquely suited for sub-µV chopper stabilization.
Availability
MAX4528CUA+ is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators, data acquisition systems, test equipment, and audio-signal routing applications requiring stable component supply and long-term manufacturability.
Supply support for MAX4528CUA+ 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 for industrial, communications, and consumer applications.
The MAX4528CUA+ belongs to Maxim's precision analog switch product line, designed specifically for low-error, phase-sensitive signal conditioning in chopper amplifiers, modulators, and self-calibrating measurement systems.
FAQ
What is the operating temperature range for the MAX4528CUA+?
The MAX4528CUA+ is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with its intended use in laboratory test equipment, portable data loggers, and non-automotive industrial electronics where extended thermal extremes are not required. The device's leakage current remains below 20nA at +85°C, though full specification compliance is guaranteed only within the 0°C to +70°C range.
Can the MAX4528CUA+ operate from a single +3.3V supply?
Yes, the MAX4528CUA+ supports +2.7V to +12V single-supply operation. With V− tied to GND, it delivers 250Ω to 900Ω on-resistance (typical) and <400ns transition time at +3.3V - sufficient for low-frequency chopper and audio routing. Logic thresholds adjust automatically (VINL = 0.6–0.9V, VINH = 0.9–2.4V), ensuring reliable CMOS-level control without level-shifting.
How does the MAX4528CUA+ achieve phase reversal without external components?
The MAX4528CUA+ integrates a four-switch bridge topology (A/B inputs, X/Y outputs) with complementary control logic. When IN is LOW, A connects to Y and B to X; when IN is HIGH, A connects to X and B to Y - inherently reversing signal polarity across the differential pair. No external resistors, op-amps, or transformers are needed, preserving signal fidelity and simplifying layout versus discrete solutions.
Is the MAX4528CUA+ pin-compatible with other MAX452x variants?
Yes, the MAX4528CUA+ shares identical pinout and functionality with MAX4528CPA+ (DIP-8) and MAX4528CSA+ (SO-8). All three packages implement the same phase-reversal switch architecture, electrical specifications, and truth table. Designers may migrate between µMAX, SO, and DIP versions without PCB redesign - only footprint and thermal considerations differ.
What is the maximum analog signal frequency supported by the MAX4528CUA+?
The MAX4528CUA+ maintains usable performance up to 100kHz for balanced modulator/demodulator applications, as confirmed by carrier suppression data and −68dB off-isolation at 1MHz. Its −3dB bandwidth exceeds 10MHz (per Figure 12), but AC symmetry degrades above 100kHz due to internal capacitance mismatch - making it ideal for DC–100kHz chopper and modulation tasks, not RF switching.
MAX4528CUA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 110Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 6V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 13pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4528CUA+ FAQ
1.How can I place an order for MAX4528CUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4528CUA+ 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 MAX4528CUA+ reliable?
The price and inventory of MAX4528CUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4528CUA+ is usually 5 days.
3.What payment methods are accepted for MAX4528CUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4528CUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4528CUA+?
MAX4528CUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4528CUA+ 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 MAX4528CUA+?
For technical support, including MAX4528CUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4528CUA+ requirements.
6.How does Aetrix verify that MAX4528CUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4528CUA+ 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 MAX4528CUA+ meets industry standards.
7.What is the process for return or replacement of MAX4528CUA+?
All MAX4528CUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4528CUA+, 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 MAX4528CUA+ part is unused and in its original packaging.
Return procedure for MAX4528CUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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