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Analog Devices Inc./Maxim Integrated MAX4526ESA
- Part No.:
- MAX4526ESA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4526ESA.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4526ESA 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), optimized for chopper-stabilized amplifiers and balanced modulators. It operates from ±4.5V to ±18V dual supplies or +4.5V to +36V single supply, delivers 175Ω max on-resistance with 8Ω matching, supports rail-to-rail analog signals up to ±15V, and guarantees break-before-make switching. Its 10pC max charge injection and <100ns transition time enable precision DC/low-frequency polarity reversal in instrumentation-grade signal paths.
For engineers reviewing the MAX4526ESA datasheet, MAX4526ESA pinout, MAX4526ESA application, or MAX4526ESA equivalent, this page provides verified technical context, package-specific pin functions, real-world use-value per application, and two validated alternative parts - all grounded in Maxim's official 19-1165 datasheet and SO-package characterization.
Technical Context
The MAX4526ESA implements a fully differential bridge topology where logic-controlled IN pin selects between two complementary signal paths: low IN connects A→Y/B→X; high IN connects A→X/B→Y - enabling true analog phase inversion without external op-amps or transformers. Its internal logic-level translator drives N- and P-channel MOSFET gates with out-of-phase V+/V− signals, ensuring rail-to-rail conduction and minimizing distortion across DC–100kHz.
All analog terminals (A, B, X, Y) are bidirectional and electrically identical; AC symmetry is maximized when A/B serve as inputs and X/Y as outputs. Leakage current flows exclusively to V+ or V− via ESD diodes - not through GND - enabling true floating operation. The SO-8 package supports industrial temperature range (−40°C to +85°C) with guaranteed 2kV HBM ESD protection and <5ns input rise/fall times.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±18V dual or +4.5V to +36V single - enables direct interface with ±15V op-amp rails or +24V industrial systems without level-shifting. |
| On-Resistance (RON) | 175Ω max at ±15V - ensures minimal gain error and thermal drift in precision gain-setting or feedback networks. |
| RON Matching | 8Ω max mismatch between A-X/A-Y/B-X/B-Y - critical for common-mode rejection in balanced modulator/demodulator circuits. |
| Charge Injection | 10pC max - limits voltage glitch on high-impedance nodes (e.g., integrator capacitors in chopper amps), preserving DC accuracy. |
| Transition Time | <100ns at ±15V - supports carrier frequencies up to 100kHz in synchronous demodulation with low timing skew. |
| Leakage Current | 10nA max at +85°C - maintains signal integrity in µA-range sensor front-ends and zero-drift calibration loops. |
| ESD Protection | >2kV per Method 3015.7 - withstands handling and board-level transients without latch-up or parameter shift. |
Pinout & Package
MAX4526ESA is housed in an 8-pin SO (Small Outline) package, 3.9mm × 4.9mm body, 1.27mm pitch, JEDEC MS-012AC compliant. Pin 1 is marked by beveled corner; device orientation follows standard SO top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Analog Switch Input A | Bidirectional terminal; connected to Y when IN = LOW, to X when IN = HIGH - forms one half of phase-inverting pair. |
| 2 (B) | Analog Switch Input B | Bidirectional terminal; connected to X when IN = LOW, to Y when IN = HIGH - complements A to complete full bridge inversion. |
| 3 (GND) | Digital Ground Reference | Reference for logic thresholds only; no analog signal path connection - isolates digital noise from sensitive analog paths. |
| 4 (IN) | Logic Control Input | TTL/CMOS-compatible (0.8V–2.4V thresholds); controls phase state; accepts voltages down to V− in bipolar mode. |
| 5 (V−) | Negative Analog Supply | Sets lower analog rail limit; internally tied to ESD diodes; must be connected to GND for single-supply operation. |
| 6 (Y) | Analog Switch Output Y | Bidirectional terminal; output of inverted path (A→Y/B→X) when IN = LOW; used with X for balanced differential output. |
| 7 (X) | Analog Switch Output X | Bidirectional terminal; output of non-inverted path (A→X/B→Y) when IN = HIGH; pairs with Y for full bridge routing. |
| 8 (V+) | Positive Analog/Digital Supply | Powers analog switches and internal logic; internally connected to substrate; sets upper analog rail and logic high threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Analog signals swing from V− to V+ without clipping - supports ±15V op-amp interfaces and wide-dynamic-range sensor conditioning. |
| Guaranteed break-before-make | 1ns–5ns delay prevents momentary short-circuit between A/B and X/Y - eliminates signal cross-talk during state transitions. |
| 10pC max charge injection | Minimizes voltage step on high-Z nodes (e.g., 10nF integrator caps), reducing offset drift in chopper-stabilized amplifier feedback loops. |
| 2pC max charge-injection match | Ensures matched transient glitches on complementary outputs - preserves common-mode rejection in balanced demodulator architectures. |
| 175Ω on-resistance flatness | Variation ≤12Ω over full ±15V analog range - maintains consistent gain and linearity across entire signal swing in precision instrumentation. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
|
Use Scenario: Zero-drift amplifier front-end where input signal is periodically inverted and averaged to cancel offset and 1/f noise. IC Role / Device Role / Timing Role: Phase-reversal switch toggling input polarity at chopper frequency (typically 10Hz–10kHz); synchronized to integrator reset. Use Value: Enables sub-µV offset stability and <100nV/√Hz noise floor by eliminating op-amp input-stage imperfections without external transformers. |
Use Scenario: Carrier-synchronous demodulation of low-level sensor signals (e.g., strain gauge, thermopile) in noisy industrial environments. IC Role / Device Role / Timing Role: Balanced analog switch acting as synchronous rectifier; IN driven by square-wave carrier at 1kHz–100kHz. Use Value: Achieves >65dB carrier suppression and <0.01% THD due to matched RON, low charge injection, and intrinsic AC symmetry. |
| Data Acquisition Systems | Test Equipment Signal Routing |
|
Use Scenario: High-accuracy multichannel ADC front-end requiring programmable polarity inversion for differential input calibration. IC Role / Device Role / Timing Role: Polarity-selectable analog multiplexer stage preceding PGA and ADC; controlled by microcontroller GPIO. Use Value: Eliminates need for dual-op-amp inverting stages, reducing component count, board area, and thermal EMF errors in 16-bit+ systems. |
Use Scenario: Automated test equipment (ATE) switching matrix routing reference signals, DUT outputs, or calibration sources to measurement instruments. IC Role / Device Role / Timing Role: Low-leakage, low-charge-injection signal path selector with TTL-compatible control for sequenced test sequences. Use Value: Maintains signal fidelity across 100k+ switching cycles with <10nA leakage at 85°C - critical for long-duration parametric testing. |
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 |
|---|---|---|---|
| MAX4527ESA | Identical SO-8 package and analog specs (RON, leakage, charge injection), but 1µA supply current vs. MAX4526ESA's 1.5mA; 200ns transition time vs. <100ns. | Optimized for battery-powered or low-power data loggers where speed <100kHz suffices and quiescent current is critical. | Select MAX4527ESA when power budget dominates over bandwidth; same PCB layout, no redesign needed. |
| ADG1419BRMZ | Single 4-channel SPDT switch (not bridge-configured); 1.5Ω RON, 120pC charge injection, −40°C to +125°C rating; requires external logic for phase reversal. | Used in high-precision, high-temp environments (e.g., automotive sensors) where ultra-low on-resistance matters more than integrated inversion logic. | Choose ADG1419BRMZ only if system already implements external XOR logic for polarity control and demands <2Ω RON at cost of added complexity. |
Compared with MAX4527ESA, MAX4526ESA trades 1.5mA higher supply current for 2× faster switching and superior 10pC charge injection - making it optimal for chopper amps and 100kHz modulators. Versus ADG1419BRMZ, MAX4526ESA integrates phase-control logic and bridge topology, reducing BOM count and layout risk despite higher RON.
Availability
MAX4526ESA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and precision data acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4526ESA 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, mixed-signal, and power-management ICs for industrial, medical, and communications applications - emphasizing low-noise, rail-to-rail, and high-reliability performance.
The MAX4526/MAX4527 product line was engineered specifically for DC-coupled, low-frequency phase-reversal tasks - delivering integrated bridge topology, matched switch characteristics, and robust ESD protection in compact SO and µMAX packages.
FAQ
What is the operating temperature range for MAX4526ESA?
The MAX4526ESA is rated for −40°C to +85°C ambient operation, validated per Maxim's datasheet (19-1165, Rev 0). This industrial-grade range ensures reliable performance in factory automation, test equipment, and outdoor instrumentation where thermal cycling occurs. All electrical specifications - including on-resistance, leakage, and transition time - are guaranteed across this full range.
Can MAX4526ESA operate from a single supply?
Yes, MAX4526ESA supports single-supply operation from +4.5V to +36V by connecting V− to GND. In this configuration, analog signals swing from 0V to V+, maintaining rail-to-rail capability. However, bipolar supply operation (±4.5V to ±18V) is required to achieve the full ±15V signal range and optimal THD performance cited in the datasheet.
Is MAX4526ESA pin-compatible with MAX4527ESA?
Yes, MAX4526ESA and MAX4527ESA share identical SO-8 pinout, footprint, and terminal functions - both follow the same pin configuration (A, B, GND, IN, V−, Y, X, V+). They are drop-in replacements in layout; only timing and supply current differ. No PCB changes are required when substituting between these variants.
What does "guaranteed break-before-make" mean for MAX4526ESA?
Guaranteed break-before-make means MAX4526ESA enforces a minimum 1ns (typ. 5ns) dead time between opening one switch path and closing the other - preventing momentary short-circuit between A/B and X/Y terminals. This eliminates signal feedthrough and crosstalk during polarity transitions, which is essential for chopper amplifier stability and modulator carrier suppression.
How does charge injection affect MAX4526ESA performance in chopper applications?
MAX4526ESA's 10pC max charge injection introduces a small voltage glitch on high-impedance nodes (e.g., integrator capacitors). In chopper amplifiers, this causes minor offset steps that are averaged out over cycles - but its 2pC matching between complementary paths ensures common-mode rejection, preserving net DC accuracy and enabling sub-µV offset performance in well-designed systems.
MAX4526ESA 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4526ESA FAQ
1.How can I place an order for MAX4526ESA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4526ESA 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 MAX4526ESA reliable?
The price and inventory of MAX4526ESA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4526ESA is usually 5 days.
3.What payment methods are accepted for MAX4526ESA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4526ESA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4526ESA?
MAX4526ESA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4526ESA 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 MAX4526ESA?
For technical support, including MAX4526ESA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4526ESA requirements.
6.How does Aetrix verify that MAX4526ESA is sourced from the original manufacturer or authorized distributors?
All MAX4526ESA 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 MAX4526ESA meets industry standards.
7.What is the process for return or replacement of MAX4526ESA?
All MAX4526ESA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4526ESA, 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 MAX4526ESA part is unused and in its original packaging.
Return procedure for MAX4526ESA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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