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Analog Devices Inc./Maxim Integrated MAX4526EUA+
- Part No.:
- MAX4526EUA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4526EUA+.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
MAX4526EUA+ from Maxim Integrated is a high-speed phase-reversal analog switch IC configured as a bridge of four CMOS switches (A-X/A-Y/B-X/B-Y) for polarity inversion of balanced differential signals. It operates from ±4.5V to ±18V dual supplies or +4.5V to +36V single supply, delivers 175Ω max on-resistance with 8Ω matching, <100ns transition time at ±15V, and rail-to-rail signal handling - enabling chopper-stabilized amplifier front-ends requiring precise DC/low-frequency phase reversal.
For engineers reviewing the MAX4526EUA+ datasheet, MAX4526EUA+ pinout, MAX4526EUA+ application, or MAX4526EUA+ equivalent, key selection criteria include guaranteed break-before-make timing (1–5ns), 10pC max charge injection, >65dB off-isolation at 1MHz, and −40°C to +85°C industrial temperature rating in the 8-pin µMAX package.
Technical Context
The MAX4526EUA+ implements a fully integrated bridge topology with two normally open and two normally closed paths controlled by a single logic input (IN), enabling true signal polarity reversal without external wiring. Its internal logic-level translator drives N- and P-channel MOSFET gates with out-of-phase signals referenced to V+ and V−, ensuring symmetrical conduction across the full analog range (V− to V+).
Unlike discrete switch configurations, it guarantees matched on-resistance flatness (12Ω typ), low leakage (0.5nA @ +25°C), and tight charge-injection matching (2pC max) - critical for zero-drift amplifier auto-zero cycles and balanced modulator carrier suppression where DC/AC path symmetry directly determines error voltage and harmonic distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±18V dual or +4.5V to +36V single - supports industrial bipolar rails and wide-input power systems without level-shifting. |
| On-Resistance (RON) | 175Ω max at ±15V - ensures minimal gain error and thermal drift in precision instrumentation signal paths. |
| On-Resistance Match (∆RON) | 8Ω max - maintains amplitude balance between inverted/non-inverted paths for <0.1% differential gain error. |
| Transition Time | <100ns at ±15V - enables clean switching at chopper frequencies up to 100kHz with minimal transient feedthrough. |
| Charge Injection | 10pC max - limits offset voltage kick in integrator-based auto-zero circuits to sub-µV levels. |
| Off-Isolation | −65dB at 1MHz - suppresses carrier leakage in balanced modulators to enable >100dB dynamic range. |
| Leakage Current | 10nA max @ +85°C - preserves high-impedance node integrity in sensor front-ends and sample-hold stages. |
Pinout & Package
Package: 8-pin µMAX (3.05mm × 3.05mm × 0.91mm body, 0.65mm pitch), RoHS-compliant, thermally enhanced for industrial ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Analog input terminal A | Connected to Y when IN = LOW; to X when IN = HIGH - forms one half of differential input pair. |
| 2 (B) | Analog input terminal B | Connected to X when IN = LOW; to Y when IN = HIGH - complementary input for phase reversal symmetry. |
| 3 (GND) | Digital ground reference | Reference for logic thresholds only; no analog signal return - prevents ground-loop coupling into sensitive analog paths. |
| 4 (IN) | Logic control input | TTL/CMOS-compatible (0.8V–2.4V thresholds); drives internal translator to select signal routing path. |
| 5 (V−) | Negative analog supply | Sets lower analog rail limit; internally connected to ESD diodes - must be bypassed with 0.1µF ceramic for stability. |
| 6 (Y) | Analog output terminal Y | Output node for inverted signal path; bidirectional - may serve as input in reverse-signal configurations. |
| 7 (X) | Analog output terminal X | Output node for non-inverted signal path; matched parasitics to Y ensure AC balance in modulator applications. |
| 8 (V+) | Positive analog/digital supply | Powers analog switches and logic core; internally tied to substrate - requires local 0.1µF bypass to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V− to V+ without clipping - essential for full-scale operation in ±15V industrial systems. |
| Guaranteed break-before-make | 1–5ns minimum delay prevents momentary short-circuit between X/Y outputs during state transition - eliminates signal glitches in chopper feedback loops. |
| 10pC max charge injection | Minimizes voltage step on high-Z integrator capacitors - enables sub-1µV offset correction in auto-zero amplifiers. |
| 2pC max charge-injection match | Ensures matched transients between A-X and A-Y paths - critical for common-mode rejection in differential chopper topologies. |
| >2kV ESD protection | Withstands human-body-model ESD events per Method 3015.7 - improves robustness in bench-test and production handling environments. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
Use Scenario: Front-end switching in precision op-amp auto-zero circuits that alternate input polarity at 10–100kHz to cancel input offset and 1/f noise. IC Role / Device Role / Timing Role: Phase-reversal analog switch providing synchronous polarity inversion of differential sensor inputs with matched RON and Qj. Use Value: Enables <100nV offset drift over temperature and time by eliminating mismatch-induced residual errors in chopper cycle transitions. | Use Scenario: Carrier-synchronous signal modulation in precision measurement systems using square-wave carriers up to 100kHz. IC Role / Device Role / Timing Role: Balanced analog switch acting as a polarity-reversing mixer core, driven by logic-level carrier applied to IN pin. Use Value: Achieves >65dB carrier suppression via matched on-resistance flatness and low charge-injection mismatch - critical for lock-in amplifier sensitivity. |
| Data Acquisition Systems | Test Equipment Signal Routing |
Use Scenario: Input multiplexing and polarity selection in 16-bit+ SAR ADC front-ends requiring programmable gain and sign inversion. IC Role / Device Role / Timing Role: Precision analog switch enabling software-selectable signal inversion prior to PGA or ADC sampling stage. Use Value: Maintains THD <−90dB at 1kHz through low on-capacitance (13pF) and high off-isolation - preserves SNR in high-resolution digitization. | Use Scenario: Reconfigurable signal path routing in automated test equipment (ATE) for stimulus/response channel pairing with polarity control. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch supporting ±15V test signal levels and fast reconfiguration (<100ns) between DUT interfaces. Use Value: Eliminates need for relay-based polarity switching - reduces mechanical wear, improves repeatability, and enables microsecond-level test sequencing. |
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 |
|---|---|---|---|
| MAX4527EUA+ | Identical pinout and analog specs, but optimized for low-power operation: 1µA supply current vs. MAX4526EUA+'s 1.5mA; slower transition time (250ns vs. <100ns). | Better suited for battery-powered or thermally constrained systems where speed <10kHz suffices. | Select MAX4527EUA+ only when power budget is primary constraint and chopper frequency ≤10kHz. |
| ADG1419BRMZ | Single-pole double-throw (SPDT) configuration only; no native bridge topology - requires external wiring to emulate phase reversal; higher on-resistance (1.3Ω typical) but wider bandwidth (170MHz). | Applicable where high-frequency signal routing dominates over precision DC reversal; not drop-in for chopper amplifier designs. | Use ADG1419BRMZ only for AC-coupled, high-bandwidth polarity switching - not for DC-coupled auto-zero or modulator applications requiring intrinsic bridge symmetry. |
Compared with MAX4527EUA+, the MAX4526EUA+ provides 2.5× faster switching and lower charge injection for precision chopper systems, while ADG1419BRMZ offers RF-grade bandwidth at the cost of added layout complexity and loss of guaranteed break-before-make - making MAX4526EUA+ the sole choice for industrial-grade, DC-optimized phase reversal.
Availability
MAX4526EUA+ is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and precision data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4526EUA+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4526/MAX4527 product line was designed specifically for precision DC and low-frequency phase-reversal applications - targeting chopper amplifiers, self-calibrating sensors, and carrier-based modulation where analog path symmetry, low leakage, and predictable switching transients are non-negotiable.
FAQ
What is the operating temperature range for the MAX4526EUA+?
The MAX4526EUA+ is rated for −40°C to +85°C, qualifying it for industrial and extended-temperature applications. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, where "E" grade denotes the −40°C to +85°C specification. The µMAX package's thermal characteristics support reliable operation across this full span without derating under typical PCB copper pour conditions.
Does the MAX4526EUA+ support single-supply operation?
Yes, the MAX4526EUA+ supports single-supply operation from +4.5V to +36V when V− is connected to GND. The datasheet explicitly states this in the General Description and Applications Information sections, and Figure 7 illustrates single-supply test conditions. All electrical specifications - including on-resistance, leakage, and transition time - remain valid under these conditions, provided proper bypassing (0.1µF ceramic per supply pin) is implemented.
What is the purpose of the break-before-make feature in the MAX4526EUA+?
The break-before-make feature in the MAX4526EUA+ enforces a minimum 1ns (typical 5ns) dead time between opening one switch path and closing the other, preventing momentary short-circuit between X and Y outputs. This is critical in chopper amplifier feedback loops to avoid latch-up or transient spikes. The feature is guaranteed in the Electrical Characteristics table under "Break-Before-Make Time Delay (tBBM)" and verified in Figure 4's timing diagram.
Can the MAX4526EUA+ handle signals beyond the supply rails?
No - the MAX4526EUA+ does not support rail-over operation. Its absolute maximum ratings specify that all analog pins (A, B, X, Y) must remain within (V− − 0.3V) to (V+ + 0.3V). Internal ESD diodes clamp signals exceeding V+ or V−, and forward conduction beyond ±20mA risks permanent damage. The datasheet emphasizes this in Note 1 of the Electrical Characteristics table and the Power-Supply Considerations section.
How does charge injection affect performance in chopper applications using the MAX4526EUA+?
In chopper applications, charge injection from the MAX4526EUA+ causes a voltage step on high-impedance integrator nodes, directly contributing to residual offset. With a guaranteed maximum of 10pC (and 2pC matching between paths), the resulting offset kick is limited to <1µV on a 10nF capacitor - enabling sub-100nV system-level offset stability. This value is measured per Figure 5 and specified in the Features list and Electrical Characteristics table.
MAX4526EUA+ 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):
- 175Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4526EUA+ FAQ
1.How can I place an order for MAX4526EUA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4526EUA+ 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 MAX4526EUA+ reliable?
The price and inventory of MAX4526EUA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4526EUA+ is usually 5 days.
3.What payment methods are accepted for MAX4526EUA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4526EUA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4526EUA+?
MAX4526EUA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4526EUA+ 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 MAX4526EUA+?
For technical support, including MAX4526EUA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4526EUA+ requirements.
6.How does Aetrix verify that MAX4526EUA+ is sourced from the original manufacturer or authorized distributors?
All MAX4526EUA+ 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 MAX4526EUA+ meets industry standards.
7.What is the process for return or replacement of MAX4526EUA+?
All MAX4526EUA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4526EUA+, 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 MAX4526EUA+ part is unused and in its original packaging.
Return procedure for MAX4526EUA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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