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Analog Devices Inc./Maxim Integrated MAX4526EPA
- Part No.:
- MAX4526EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4526EPA.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,872
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Product details
Overview
MAX4526EPA from Maxim Integrated is a phase-reversal analog switch IC optimized for high-speed chopper-stabilized amplifier applications, featuring rail-to-rail signal handling (±15V supplies), 175Ω max on-resistance, <100ns transition time, and guaranteed break-before-make switching. It operates from ±4.5V to ±18V dual supplies or +4.5V to +36V single supply.
For engineers reviewing the MAX4526EPA datasheet, MAX4526EPA pinout, MAX4526EPA application, or MAX4526EPA equivalent, key selection criteria include on-resistance matching (≤8Ω), charge injection (≤10pC), leakage current (≤10nA at +85°C), TTL/CMOS-compatible logic thresholds (0.8V–2.4V), and -40°C to +85°C industrial temperature rating.
Technical Context
The MAX4526EPA implements a bridge-configured CMOS analog switch with two normally open and two normally closed paths, enabling true differential phase reversal under single logic control (IN pin). Its internal logic-level translator drives N- and P-channel MOSFETs out-of-phase using V+ and V− to maintain low on-resistance across rail-to-rail analog signals.
It guarantees break-before-make timing (1–5ns) to prevent momentary shorting during state transitions and features matched charge injection (≤2pC) and on-resistance flatness (≤12Ω) - critical for precision chopper and modulator circuits where DC/AC symmetry directly impacts carrier suppression and offset stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±18V dual or +4.5V to +36V single - supports industrial bipolar and single-supply systems without level-shifting. |
| On-Resistance (RON) | 175Ω max at ±15V - ensures minimal signal attenuation and gain error in precision analog paths. |
| On-Resistance Match (∆RON) | 8Ω max - enables high common-mode rejection in balanced modulators and chopper amplifiers. |
| Charge Injection | 10pC max - limits voltage glitch and settling error when switching high-impedance nodes (e.g., integrator inputs). |
| Transition Time | <100ns at ±15V - supports carrier frequencies up to 100kHz in balanced modulator/demodulator applications. |
| Leakage Current | 10nA max at +85°C - preserves accuracy in µA-range sensor interfaces and zero-drift amplifier feedback paths. |
| Logic Thresholds | 0.8V low / 2.4V high - ensures reliable TTL/CMOS compatibility across full supply range without external biasing. |
Pinout & Package
MAX4526EPA uses an 8-pin plastic DIP package (0.300" wide), with lead finish Sn/Pb, RoHS-compliant option available per factory request. Pin 1 = A (input), Pin 2 = B (input), Pin 3 = GND (digital ground reference), Pin 4 = IN (logic control), Pin 5 = V− (negative analog supply), Pin 6 = Y (output), Pin 7 = X (output), Pin 8 = V+ (positive analog/digital supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Analog input terminal A | Connected to Y when IN = LOW; to X when IN = HIGH - forms one half of phase-reversal path. |
| B | Analog input terminal B | Connected to X when IN = LOW; to Y when IN = HIGH - complementary input for balanced operation. |
| GND | Digital ground reference | Reference for logic circuitry only; analog signals are fully floating between V+ and V−. |
| IN | Logic-level control input | TTL/CMOS-compatible; drives internal translator to select phase-reversal state (LOW = non-inverted, HIGH = inverted). |
| V− | Negative analog supply | Sets lower analog signal limit; connected to GND for single-supply operation; internally powers P-channel switches. |
| Y | Analog output terminal Y | Output node for phase-reversed signal path; bidirectional - may serve as input in reverse-signal configurations. |
| X | Analog output terminal X | Output node for non-inverted signal path; identical electrical characteristics to Y; AC symmetry optimized when used with A/B as inputs. |
| V+ | Positive analog/digital supply | Powers N-channel switches and internal logic; internally tied to substrate; sets upper analog signal limit. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - eliminates clipping in ±15V op-amp front-ends and data acquisition channels. |
| Guaranteed break-before-make | 1–5ns delay prevents signal shorting during polarity reversal - essential for stable chopper amplifier feedback loops. |
| 10pC max charge injection | Minimizes voltage step errors at high-impedance nodes (e.g., integrator capacitors), reducing settling time and residual offset. |
| 2pC max charge-injection match | Ensures matched transient glitches across A/B paths - critical for differential signal integrity in modulators and self-calibrating circuits. |
| >2kV ESD protection | Meets Method 3015.7 - protects against handling damage during PCB assembly and field service in industrial environments. |
| 8-pin DIP package | Through-hole mounting with 0.300" width - enables prototyping, legacy system upgrades, and high-reliability industrial designs. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
|
Use Scenario: Reversing input polarity at precise intervals to cancel op-amp input offset voltage in precision instrumentation amplifiers. IC Role / Device Role / Timing Role: Phase-reversal switch controlling signal path polarity under synchronous clock control; replaces discrete relay or transformer-based choppers. Use Value: Enables sub-µV offset drift performance with no mechanical wear, thermal EMF, or magnetic coupling limitations. |
Use Scenario: Carrier-frequency modulation of differential sensor outputs (e.g., strain gauge bridges) in industrial transmitters. IC Role / Device Role / Timing Role: Balanced analog switch acting as synchronous multiplier; IN pin driven by square-wave carrier at up to 100kHz. Use Value: Achieves >65dB off-isolation and matched on-resistance to suppress carrier feedthrough and preserve SNR. |
| Data Acquisition Systems | Test Equipment Signal Routing |
|
Use Scenario: Multiplexing and polarity inversion of low-level sensor signals (thermocouples, RTDs) before ADC sampling. IC Role / Device Role / Timing Role: Precision analog switch providing programmable signal inversion and rail-to-rail input range handling. Use Value: Eliminates need for external op-amp inverting stages, reducing component count, noise, and board space in 16-bit+ DAQ modules. |
Use Scenario: Automated reconfiguration of signal paths in benchtop multimeters, oscilloscope front-ends, and calibration standards. IC Role / Device Role / Timing Role: High-isolation, low-leakage switch enabling fast, repeatable routing of reference voltages and test stimuli. Use Value: Maintains measurement accuracy over temperature (-40°C to +85°C) with <10nA leakage and matched RON for ratio-metric measurements. |
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 |
|---|---|---|---|
| MAX4527EPA | Identical analog switch core but slower transition time (250ns vs. <100ns) and lower supply current (1µA vs. 1.5mA typical at +25°C). | Optimized for ultra-low-power battery-operated systems rather than high-speed chopper or modulator use. | Select MAX4527EPA only when speed is secondary to quiescent current; not suitable for >50kHz carrier applications. |
| ADG1419BRZ | Single SPDT switch (not phase-reversal bridge); 1.5Ω on-resistance but requires external logic to implement polarity reversal. | Lacks integrated break-before-make and matched charge injection - demands additional design effort for chopper functionality. | Use ADG1419BRZ only in non-critical, low-precision applications where discrete implementation of phase reversal is acceptable. |
Compared with MAX4527EPA, the MAX4526EPA delivers higher speed and higher drive capability at the cost of increased current; compared with ADG1419BRZ, it provides monolithic phase-reversal functionality with guaranteed timing and matching - reducing layout complexity and improving repeatability in production test and precision analog systems.
Availability
MAX4526EPA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and industrial data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for MAX4526EPA 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 computing 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 symmetry, low leakage, and controlled switching transients are mandatory.
FAQ
What is the operating temperature range of the MAX4526EPA?
The MAX4526EPA is rated for operation from -40°C to +85°C, making it suitable for industrial and automotive under-hood applications where ambient temperatures exceed commercial-grade limits. This extended range is confirmed in the Ordering Information table and validated across all electrical specifications including on-resistance, leakage, and transition time.
Does the MAX4526EPA support single-supply operation?
Yes, the MAX4526EPA supports single-supply operation from +4.5V to +36V by connecting V− to GND. The device maintains rail-to-rail analog signal handling (0V to V+) and retains all key specs including ≤175Ω on-resistance and ≤10pC charge injection - as verified in the Electrical Characteristics tables under single-supply conditions.
How does the MAX4526EPA achieve phase reversal?
The MAX4526EPA achieves phase reversal via an internal bridge configuration: when IN is LOW, A connects to Y and B connects to X; when IN is HIGH, A connects to X and B connects to Y. This cross-switching topology inverts the differential relationship between inputs A/B and outputs X/Y - enabling true signal polarity reversal without external components.
Is the MAX4526EPA pin-compatible with other variants in the MAX4526 family?
Yes, all MAX4526 variants (CPA, ESA, EUA, EPA) share identical 8-pin DIP/SO/µMAX pinouts and electrical functionality - only temperature grade and package differ. The MAX4526EPA uses the same pin configuration as MAX4526CPA, with identical A, B, IN, X, Y, V+, V−, and GND assignments per the Pin Configuration diagram.
What is the maximum analog signal voltage the MAX4526EPA can handle?
The MAX4526EPA handles analog signals from V− to V+ - i.e., rail-to-rail. With ±15V supplies, this means ±15V; with +15V/V− = GND, it handles 0V to +15V. Absolute maximum ratings allow V+ up to +44V and V− down to -25V, but functional analog range remains bounded by the applied supply rails per the Electrical Characteristics table.
MAX4526EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4526EPA FAQ
1.How can I place an order for MAX4526EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4526EPA 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 MAX4526EPA reliable?
The price and inventory of MAX4526EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4526EPA is usually 5 days.
3.What payment methods are accepted for MAX4526EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4526EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4526EPA?
MAX4526EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4526EPA 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 MAX4526EPA?
For technical support, including MAX4526EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4526EPA requirements.
6.How does Aetrix verify that MAX4526EPA is sourced from the original manufacturer or authorized distributors?
All MAX4526EPA 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 MAX4526EPA meets industry standards.
7.What is the process for return or replacement of MAX4526EPA?
All MAX4526EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4526EPA, 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 MAX4526EPA part is unused and in its original packaging.
Return procedure for MAX4526EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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