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Analog Devices Inc./Maxim Integrated MAX4527CSA+
- Part No.:
- MAX4527CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4527CSA+.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,535
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Product details
Overview
MAX4527CSA+ from Maxim Integrated is a low-power phase-reversal analog switch IC configured as a dual SPDT bridge for polarity inversion in precision analog signal paths. It operates from +4.5V to +36V single supply or ±4.5V to ±18V dual supplies, delivers 175Ω max on-resistance with 8Ω matching, supports rail-to-rail ±15V analog signals, and consumes only 1µA at +25°C - ideal for chopper-stabilized amplifiers and self-calibrating sensor front-ends.
For engineers reviewing the MAX4527CSA+ datasheet, MAX4527CSA+ pinout, MAX4527CSA+ application, or MAX4527CSA+ equivalent, this page provides verified pin functions, real-world leakage and charge-injection values, confirmed break-before-make timing, package dimensions, and two validated alternative parts for low-power phase-reversal switching in DC/low-frequency instrumentation.
Technical Context
The MAX4527CSA+ implements a fully integrated CMOS bridge topology with two normally open and two normally closed switches, enabling true differential signal polarity reversal under single logic control (IN). Its internal logic-level translator drives N- and P-channel MOSFETs out-of-phase using V+ and V−, eliminating ground reference for analog paths while maintaining TTL/CMOS-compatible input thresholds (0.8V–2.4V).
Unlike discrete bridge implementations, it guarantees break-before-make timing (1–5ns), matches on-resistance within 8Ω, limits charge injection to 10pC max (2pC matching), and achieves >65dB off-isolation at 1MHz - all in an 8-pin µMAX package optimized for layout isolation between analog and digital domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +4.5V to +36V single supply or ±4.5V to ±18V dual supply - enables operation in industrial ±15V systems and battery-powered +5V/+12V designs. |
| On-Resistance (RON) | 175Ω max at ±15V - ensures minimal gain error and THD degradation in precision signal routing up to 100kHz. |
| On-Resistance Match (∆RON) | 8Ω max - critical for balanced modulator carrier suppression and chopper amplifier offset cancellation. |
| Leakage Current | 0.5nA at +25°C, 10nA at +85°C - preserves accuracy in high-impedance sensor interfaces and integrator circuits. |
| Charge Injection | 10pC max (2pC matching) - minimizes voltage glitch and settling error during switching in auto-zeroing amplifiers. |
| Transition Time | 250ns max at ±15V - sufficient for DC–100kHz phase-reversal applications without signal distortion. |
| ESD Protection | >2kV per Method 3015.7 - enhances robustness in bench test equipment and field-deployable instrumentation. |
Pinout & Package
MAX4527CSA+ uses an 8-pin µMAX package (3.05mm × 3.05mm × 0.91mm, 0.65mm pitch), pin-compatible with SO and DIP variants but optimized for space-constrained PCB layouts and analog-digital isolation.
| 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 the phase-reversal path. |
| 2 B | Analog input terminal B | Connected to X when IN = LOW; to Y when IN = HIGH - complementary input for balanced signal routing. |
| 3 GND | Digital ground reference | Reference for logic inputs only; analog paths are floating between V+ and V− - prevents ground-loop coupling. |
| 4 IN | Logic control input | TTL/CMOS-compatible (0.8V–2.4V thresholds); controls phase state; ESD-protected to V+ and V−, not GND. |
| 5 V− | Negative analog supply | Set to GND for single-supply use; defines lower analog signal limit; biases P-channel switches to reduce RON. |
| 6 Y | Analog output terminal Y | Output node for inverted or non-inverted path depending on IN state; bidirectional, rail-to-rail capable. |
| 7 X | Analog output terminal X | Complementary output node; AC symmetry optimized when A/B are inputs and X/Y are outputs. |
| 8 V+ | Positive analog/digital supply | Powers analog switches and internal logic; internally connected to substrate; sets upper analog signal limit. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Analog signals swing from V− to V+ without clipping - supports full dynamic range in ±15V op-amp systems. |
| Guaranteed break-before-make | 1–5ns delay prevents momentary short-circuit between X and Y - essential for avoiding transient glitches in feedback loops. |
| 10pC max charge injection | Minimizes voltage step on high-Z nodes (e.g., integrator capacitors), reducing settling time and residual offset in chopper amps. |
| 1µA supply current (MAX4527) | Enables ultra-low-power operation in battery-backed data acquisition and portable calibration tools. |
| 8-pin µMAX package | 3×3mm footprint with exposed pad option - simplifies thermal management and board layout while isolating analog and digital traces. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
|
Use Scenario: Reversing input polarity at precise intervals to cancel op-amp input offset voltage in precision DC measurement systems. IC Role / Device Role / Timing Role: Phase-reversal switch providing synchronous polarity inversion synchronized to chopper clock - enables auto-zeroing without external relays or discrete bridges. Use Value: Achieves sub-µV offset drift via matched on-resistance (≤8Ω) and ultra-low charge injection (≤10pC), directly improving long-term measurement stability. |
Use Scenario: Carrier-synchronized signal modulation/demodulation in lock-in amplifiers and impedance analyzers operating below 100kHz. IC Role / Device Role / Timing Role: Balanced analog switch acting as synchronous mixer - IN pin accepts square-wave carrier; A/B and X/Y form differential RF path. Use Value: Delivers >65dB off-isolation and matched RON to suppress carrier feedthrough, enabling accurate low-level signal recovery in noisy environments. |
| Data Acquisition Front-Ends | Audio-Signal Routing |
|
Use Scenario: Polarity-selectable input stage for programmable-gain instrumentation amplifiers in multi-channel sensor systems. IC Role / Device Role / Timing Role: Low-leakage (0.5nA @ +25°C), rail-to-rail analog switch enabling bipolar signal conditioning before ADC sampling. Use Value: Maintains signal integrity across temperature (10nA @ +85°C) and avoids gain error from RON mismatch in calibrated measurement chains. |
Use Scenario: Inverting/non-inverting signal path selection in professional audio line drivers and headphone amplifiers requiring phase correction. IC Role / Device Role / Timing Role: Low-distortion analog switch supporting full-audio bandwidth (THD <0.1% at 1kHz) with minimal crosstalk. Use Value: 13pF OFF-capacitance and >65dB isolation prevent channel bleed and preserve stereo imaging in compact PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-reversal analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4526CSA+ | Higher supply current (1.5mA vs. 1µA), faster transition time (95ns vs. 250ns), same RON and package - optimized for speed over power. | Better suited for carrier frequencies >100kHz; less suitable for battery-powered or thermally constrained designs. | Select MAX4526CSA+ when phase-reversal timing resolution is critical and power budget allows ≥1mA quiescent draw. |
| ADG1419BRMZ | Single 2:1 SPDT (not bridge), 0.5Ω RON, ±15V rating, but no inherent phase-reversal function - requires external wiring for polarity inversion. | Requires additional components and board area to replicate bridge functionality; lacks guaranteed break-before-make. | Choose ADG1419BRMZ only if discrete switch control and lowest possible RON outweigh integration, size, and timing guarantees. |
Compared with MAX4527CSA+, MAX4526CSA+ trades ultra-low power for higher speed, while ADG1419BRMZ offers lower on-resistance but sacrifices monolithic phase-reversal capability, requiring external design effort and compromising layout efficiency and timing reliability.
Availability
MAX4527CSA+ is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition front-ends requiring stable component supply, long-lifecycle support, and guaranteed parametric performance across temperature.
Supply support for MAX4527CSA+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and communications systems.
The MAX4526/MAX4527 product line was designed specifically for precision DC and low-frequency phase-reversal applications - including chopper amplifiers, self-calibrating sensors, and balanced modulators - where matched RON, low leakage, and guaranteed break-before-make are mandatory.
FAQ
What is the maximum operating temperature range for MAX4527CSA+?
The MAX4527CSA+ is rated for 0°C to +70°C operation, as indicated by the 'C' grade suffix in its ordering code. This commercial-grade temperature range is validated across all electrical specifications including on-resistance, leakage current, and transition time - making it suitable for lab equipment, industrial controllers, and consumer instrumentation where ambient conditions remain within this envelope. The MAX4527ESA+ variant extends to –40°C to +85°C.
Does MAX4527CSA+ support single-supply operation?
Yes, MAX4527CSA+ supports single-supply operation from +4.5V to +36V by connecting V− to GND. In this configuration, analog signals swing from 0V to V+, preserving rail-to-rail capability. All key parameters - including 175Ω max on-resistance, 0.5nA leakage at +25°C, and 10pC charge injection - are specified and tested under both single- and dual-supply conditions per the official datasheet.
Is MAX4527CSA+ pin-compatible with MAX4526CSA+?
Yes, MAX4527CSA+ is fully pin-compatible with MAX4526CSA+ in the same package (SO-8), sharing identical pinout, footprint, and voltage ratings. The functional difference lies solely in internal logic driver optimization: MAX4527CSA+ uses slower, lower-current circuitry for 1µA quiescent draw, while MAX4526CSA+ uses faster drivers for 95ns transition time - both maintain identical analog switch characteristics and truth table behavior.
What is the significance of guaranteed break-before-make in MAX4527CSA+?
Guaranteed break-before-make (1–5ns) in MAX4527CSA+ ensures that the X and Y output paths never conduct simultaneously during IN state transitions. This eliminates momentary short-circuits in feedback networks or transformer-coupled stages - a critical requirement in chopper amplifier topologies and balanced modulators where even nanosecond overlap causes measurable offset or carrier leakage. It is a monolithic guarantee, not dependent on external timing control.
Can MAX4527CSA+ handle bipolar analog signals without a ground reference?
Yes, MAX4527CSA+ handles fully floating bipolar analog signals ranging from V− to V+. Its analog path has no internal connection to GND - signals pass bidirectionally between A/B and X/Y terminals with no ground reference required. This architecture eliminates ground-loop errors in isolated measurement systems and enables direct interfacing with ±15V op-amps, transformer secondaries, or piezoelectric sensors where common-mode voltage swings independently of system ground.
MAX4527CSA+ 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4527CSA+ FAQ
1.How can I place an order for MAX4527CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4527CSA+ 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 MAX4527CSA+ reliable?
The price and inventory of MAX4527CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4527CSA+ is usually 5 days.
3.What payment methods are accepted for MAX4527CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4527CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4527CSA+?
MAX4527CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4527CSA+ 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 MAX4527CSA+?
For technical support, including MAX4527CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4527CSA+ requirements.
6.How does Aetrix verify that MAX4527CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX4527CSA+ 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 MAX4527CSA+ meets industry standards.
7.What is the process for return or replacement of MAX4527CSA+?
All MAX4527CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4527CSA+, 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 MAX4527CSA+ part is unused and in its original packaging.
Return procedure for MAX4527CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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