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Analog Devices Inc./Maxim Integrated MAX4526CPA
- Part No.:
- MAX4526CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4526CPA.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,159
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Product details
Overview
MAX4526CPA from Maxim Integrated is a high-speed phase-reversal analog switch IC configured as a bridge of four CMOS switches (two NO/two NC) 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.
For engineers reviewing the MAX4526CPA datasheet, MAX4526CPA pinout, MAX4526CPA application, or MAX4526CPA equivalent, key selection criteria include guaranteed break-before-make timing (1–5ns), 10pC max charge injection, >65dB off-isolation at 1MHz, TTL/CMOS-compatible logic thresholds (0.8V/2.4V), and leakage current ≤0.5nA at +25°C.
Technical Context
The MAX4526CPA implements a fully symmetric bridge topology where analog inputs A and B are cross-switched to outputs X and Y under IN control - routing A→Y/B→X (IN low) or A→X/B→Y (IN high). Its internal logic-level translator drives N- and P-channel MOSFET gates with out-of-phase V+ and V− signals, enabling true rail-to-rail conduction without ground reference.
It features matched on-resistance flatness (12Ω typ), 13pF off-capacitance per terminal, and ESD protection >2kV per Method 3015.7. Unlike discrete bridge implementations, its monolithic layout ensures DC and AC symmetry optimized for ±15V operation - critical for carrier suppression in balanced modulators up to 100kHz.
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 wide-range unipolar systems. |
| On-Resistance (RON) | 175Ω max at ±15V - enables low-gain error in precision signal paths with minimal voltage drop. |
| RON Matching (∆RON) | 8Ω max between A-X/A-Y/B-X/B-Y - ensures amplitude balance in differential phase reversal. |
| Transition Time | <100ns at ±15V - supports fast chopper cycles and carrier frequencies up to 100kHz. |
| Charge Injection | 10pC max - limits offset voltage kick in high-impedance integrator nodes (e.g., chopper amp nulling). |
| Off-Isolation | −65dB at 1MHz - suppresses carrier feedthrough in modulator/demodulator applications. |
| Leakage Current | 0.5nA max at +25°C - preserves accuracy in µA-level sensor or calibration circuits. |
Pinout & Package
MAX4526CPA uses an 8-pin plastic DIP package (0.300″ width), with lead finish Sn/Pb, operating temperature range 0°C to +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Analog input terminal A | Connected to Y when IN = low; to X when IN = high - one half of balanced input pair. |
| 2 (B) | Analog input terminal B | Connected to X when IN = low; to Y when IN = high - complementary input for phase reversal. |
| 3 (GND) | Digital ground reference | Reference for logic circuitry only; analog paths are floating between V+ and V− - no analog ground tie. |
| 4 (IN) | Logic-level control input | TTL/CMOS-compatible (0.8V/2.4V thresholds); controls switch state; accepts voltages from V− to V+. |
| 5 (V−) | Negative analog supply | Sets lower analog rail; connect to GND for single-supply operation; internally powers P-channel switches. |
| 6 (Y) | Analog output terminal Y | Output node for inverted or non-inverted path depending on IN; bidirectional, rail-to-rail capable. |
| 7 (X) | Analog output terminal X | Complementary output node to Y; maintains symmetry with X/Y pair for balanced termination. |
| 8 (V+) | Positive analog/digital supply | Powers N-channel switches and logic; internally tied to substrate; sets upper analog rail. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Analog signals swing from V− to V+ with no ground reference - ideal for isolated differential systems. |
| Guaranteed break-before-make | 1–5ns minimum delay prevents momentary short-circuit during switching - essential for stable chopper operation. |
| 10pC max charge injection | Minimizes voltage glitch on high-Z nodes (e.g., integrator capacitors), reducing settling error in auto-zero circuits. |
| 2pC max charge-injection match | Ensures common-mode rejection in differential paths by equalizing transient kick across A/B inputs. |
| 175Ω on-resistance with 8Ω matching | Delivers amplitude balance <0.5% over full signal range - critical for carrier suppression in modulators. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
|
Use Scenario: Front-end switching stage in precision op-amp chopper circuits that alternate input polarity at 10kHz–100kHz to cancel offset and drift. IC Role / Device Role / Timing Role: Phase-reversal analog switch providing synchronous polarity inversion of differential input signals under clock-driven IN control. Use Value: Enables zero-drift performance with <10pC charge injection and matched RON - minimizing residual offset and harmonic distortion. |
Use Scenario: Carrier-synchronous signal routing in instrumentation-grade AM modulators/demodulators operating up to 100kHz. IC Role / Device Role / Timing Role: Balanced bridge switch applying logic-level square wave (IN) to reverse signal polarity and generate suppressed-carrier output. Use Value: −65dB off-isolation and 2pC charge-injection match ensure >40dB carrier suppression without external trimming. |
| Data Acquisition Systems | Test Equipment Signal Routing |
|
Use Scenario: Multiplexed input stage in 16-bit+ SAR or sigma-delta ADC systems requiring low-leakage, low-charge-injection switching before programmable gain amplifiers. IC Role / Device Role / Timing Role: Precision analog switch selecting between differential sensor inputs while preserving common-mode integrity and linearity. Use Value: 0.5nA max leakage at +25°C and rail-to-rail operation maintain DC accuracy across full input span without level-shifting. |
Use Scenario: Reconfigurable signal path in automated test equipment (ATE) for routing calibrated reference signals, DUT outputs, or feedback loops. IC Role / Device Role / Timing Role: High-fidelity analog switch enabling fast, low-distortion reconfiguration of measurement paths under microcontroller control. Use Value: <100ns transition time and 13pF off-capacitance minimize crosstalk and settling delay in multi-channel switching matrices. |
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 |
|---|---|---|---|
| MAX4527CPA | Identical analog switch core but slower logic driver; 1µA supply current vs. MAX4526CPA's 1.5mA at +25°C. | Optimized for low-power, battery-operated chopper systems where speed <50kHz suffices. | Select MAX4527CPA when power budget is constrained and transition time >250ns is acceptable. |
| ADG1419BRUZ | Single-pole double-throw (SPDT) topology; 1.5Ω on-resistance; requires external bridging for phase reversal; no guaranteed break-before-make. | Used in non-critical polarity inversion where ultra-low RON outweighs need for monolithic bridge symmetry. | Choose ADG1419BRUZ only if external discrete bridge layout is acceptable and sub-ohm RON is mandatory. |
Compared with MAX4527CPA, the MAX4526CPA trades higher supply current for faster switching and tighter timing control; compared with ADG1419BRUZ, it provides integrated bridge functionality, guaranteed break-before-make, and superior AC/DC matching - eliminating layout-dependent imbalance in precision phase reversal.
Availability
MAX4526CPA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4526CPA 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, high-reliability performance.
The MAX4526/MAX4527 product line was engineered specifically for DC- and low-frequency phase-reversal tasks including chopper amplifiers, self-calibrating systems, and balanced modulation - delivering monolithic symmetry unattainable with discrete switches.
FAQ
What is the maximum supply voltage rating for MAX4526CPA?
The MAX4526CPA has absolute maximum ratings of V+ = −0.3V to +44V and V− = −25V to +0.3V, with V+ to V− differential up to +44V. For reliable operation, use within specified ranges: ±4.5V to ±18V dual supply or +4.5V to +36V single supply. Exceeding these may cause permanent damage or degraded reliability over time.
Does MAX4526CPA support single-supply operation?
Yes, MAX4526CPA supports single-supply operation when V− is connected to GND. In this configuration, analog signals swing from 0V to V+, and logic thresholds remain TTL/CMOS-compatible as long as V+ is between +4.5V and +36V. All electrical specifications - including on-resistance and leakage - are validated for this mode.
What is the function of the GND pin on MAX4526CPA?
The GND pin on MAX4526CPA serves exclusively as the digital ground reference for the internal logic-level translator and input threshold circuitry. It is not connected to the analog signal paths, which operate fully floating between V+ and V−. This separation prevents ground-loop coupling and preserves analog signal integrity in isolated systems.
How does MAX4526CPA achieve break-before-make switching?
MAX4526CPA guarantees a 1–5ns break-before-make interval via internal timing control in its logic driver stage. This ensures the previously conducting switch path is fully opened before the new path closes - preventing momentary shorts in chopper or modulator applications. The specification is tested and guaranteed across temperature and supply conditions.
Can MAX4526CPA handle signals beyond the supply rails?
No - MAX4526CPA analog terminals (A, B, X, Y) must remain within (V− − 0.3V) to (V+ + 0.3V) at all times. Internal ESD diodes clamp signals exceeding these limits, and forward conduction can cause excessive current or latch-up. For overvoltage-tolerant operation, external protection circuitry is required.
MAX4526CPA 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4526CPA FAQ
1.How can I place an order for MAX4526CPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4526CPA 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 MAX4526CPA reliable?
The price and inventory of MAX4526CPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4526CPA is usually 5 days.
3.What payment methods are accepted for MAX4526CPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4526CPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4526CPA?
MAX4526CPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4526CPA 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 MAX4526CPA?
For technical support, including MAX4526CPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4526CPA requirements.
6.How does Aetrix verify that MAX4526CPA is sourced from the original manufacturer or authorized distributors?
All MAX4526CPA 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 MAX4526CPA meets industry standards.
7.What is the process for return or replacement of MAX4526CPA?
All MAX4526CPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4526CPA, 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 MAX4526CPA part is unused and in its original packaging.
Return procedure for MAX4526CPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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