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Analog Devices Inc./Maxim Integrated MAX4527CPA+
- Part No.:
- MAX4527CPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4527CPA+.pdf
- Description:
- IC SWITCH SPDT X 2 175OHM 8DIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4527CPA+ from Maxim Integrated is a low-power, phase-reversal analog switch IC configured as a bridge of two normally open and two normally closed CMOS switches. It operates from +4.5V to +36V single supply or ±4.5V to ±18V dual supplies, delivers 175Ω max on-resistance with 8Ω matching, handles rail-to-rail analog signals (V− to V+), and consumes only 1µA at +25°C - ideal for chopper-stabilized amplifiers requiring precision DC reversal.
For engineers reviewing the MAX4527CPA+ datasheet, MAX4527CPA+ pinout, MAX4527CPA+ application, or MAX4527CPA+ equivalent, key selection criteria include guaranteed break-before-make timing (1–5ns), 10pC max charge injection, ±15V supply compatibility, TTL/CMOS logic thresholds (0.8V–2.4V), and leakage current ≤0.5nA at +25°C - all critical for low-drift, low-noise signal routing in self-calibrating systems.
Technical Context
The MAX4527CPA+ implements a fully integrated bridge topology where analog inputs A and B are routed to outputs X and Y under logic control of the IN pin, enabling true polarity inversion without external components. Its internal logic-level translator drives N- and P-channel MOSFETs out-of-phase using V+ and V−, ensuring symmetrical conduction across the full analog range.
Unlike discrete switch configurations, the device guarantees matched on-resistance flatness (12Ω typ) and charge-injection matching (2pC max), while ESD protection (>2kV per Method 3015.7) and rail-to-rail signal handling (±15V supplies) support robust operation in test equipment and data acquisition front-ends where signal integrity and thermal stability are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +4.5V to +36V single or ±4.5V to ±18V dual - supports industrial and instrumentation rails without level-shifting. |
| On-Resistance (RON) | 175Ω max at ±15V - ensures minimal signal attenuation and gain error in precision DC paths. |
| On-Resistance Match (∆RON) | 8Ω max - critical for balanced modulator carrier suppression and chopper amplifier offset cancellation. |
| Charge Injection | 10pC max - limits voltage glitch on high-impedance nodes (e.g., integrator capacitors in auto-zero circuits). |
| Leakage Current | 0.5nA max at +25°C - preserves accuracy in µV-level sensor signal chains and long-time-constant filters. |
| Transition Time | 250ns max at ±15V - sufficient for <100kHz carrier modulation in balanced demodulators. |
| Logic Thresholds | 0.8V low / 2.4V high - ensures reliable TTL/CMOS interfacing across temperature without external biasing. |
Pinout & Package
MAX4527CPA+ uses an 8-pin plastic DIP package (0.300″ wide), with lead finish Pb-free and RoHS-compliant. 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 or GND for single supply), Pin 6 = Y (output), Pin 7 = X (output), Pin 8 = V+ (positive analog/digital supply).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Analog input terminal | Connected to Y when IN = LOW; to X when IN = HIGH - forms one leg of phase-reversal path. |
| 2 (B) | Analog input terminal | Connected to X when IN = LOW; to Y when IN = HIGH - complementary leg for balanced inversion. |
| 3 (GND) | Digital ground reference | Reference for logic circuitry only; analog signals float between V+ and V− with no GND tie. |
| 4 (IN) | Logic-level control input | TTL/CMOS-compatible; controls switch state with guaranteed break-before-make (1–5ns delay). |
| 5 (V−) | Negative analog supply | Set to GND for single-supply operation; defines lower analog signal limit (e.g., −15V in bipolar mode). |
| 6 (Y) | Analog output terminal | Output node carrying inverted or non-inverted signal depending on IN state; rail-to-rail capable. |
| 7 (X) | Analog output terminal | Complementary output to Y; used with Y to deliver differential or phase-reversed outputs. |
| 8 (V+) | Positive analog/digital supply | Powers analog 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 inputs from V− to V+ - enables direct interface with op-amp outputs and sensor bridges without clamping. |
| Guaranteed break-before-make | 1–5ns minimum delay prevents momentary short-circuit during state transition - essential for stable chopper amplifier feedback loops. |
| 10pC max charge injection | Minimizes voltage step on high-Z nodes (e.g., 10nF integrator caps), reducing settling error in auto-zero architectures. |
| 1µA supply current (MAX4527) | Enables battery-powered or energy-constrained applications like portable calibration tools and low-power data loggers. |
| 2pC max charge-injection match | Ensures matched transient errors between A/B paths - critical for common-mode rejection in balanced modulators. |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
Use Scenario: Precision DC amplification in strain-gauge interfaces where offset drift must be nulled every cycle. IC Role / Device Role / Timing Role: Phase-reversal switch toggling input polarity synchronously with chopper clock to enable auto-zero correction. Use Value: Eliminates need for external relay or discrete H-bridge; 0.5nA leakage and 10pC charge injection preserve sub-µV offset stability. |
Use Scenario: Carrier-frequency modulation of sensor outputs in industrial transmitters with >60dB carrier suppression required. IC Role / Device Role / Timing Role: Balanced analog switch acting as synchronous multiplier, driven by square-wave carrier on IN pin. Use Value: 8Ω RON match and 2pC charge-injection match directly improve carrier suppression beyond −65dB at 100kHz. |
| Data Acquisition Front-Ends | Audio-Signal Routing |
Use Scenario: Multiplexing low-level thermocouple or RTD signals into a shared ADC channel with minimal crosstalk. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch providing selectable gain/inversion paths before programmable gain amplifier. Use Value: 175Ω RON and 13pF COFF ensure bandwidth preservation and minimal settling time (<1µs) for 16-bit resolution. |
Use Scenario: Polarity-selectable routing in studio-grade headphone amplifiers supporting balanced/unbalanced output modes. IC Role / Device Role / Timing Role: Phase-reversal element enabling mono-to-differential conversion or polarity inversion for noise cancellation. Use Value: 100kHz small-signal bandwidth and <−65dB off-isolation prevent audible intermodulation distortion in line-level paths. |
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 |
|---|---|---|---|
| MAX4526CPA+ | Higher supply current (1.5mA vs. 1µA), faster transition time (95ns vs. 250ns), optimized for >100kHz operation. | Better suited for high-frequency modulators; less suitable for ultra-low-power battery systems. | Select MAX4526CPA+ when speed >100kHz and power budget allows >1mA; otherwise retain MAX4527CPA+ for µA-level operation. |
| ADG1419BRUZ | Single 4-channel SPDT, 1.5Ω RON, but no native phase-reversal topology - requires external wiring for inversion. | Lacks integrated bridge configuration; increases PCB area and layout sensitivity to imbalance. | Choose ADG1419BRUZ only if ultra-low RON is mandatory and board space permits discrete bridge implementation. |
Compared with MAX4526CPA+, the MAX4527CPA+ trades speed for 1000× lower quiescent current - making it optimal for portable calibration and energy-sensitive chopper systems; versus ADG1419BRUZ, it delivers monolithic phase reversal with guaranteed matching, eliminating layout-dependent performance variation.
Availability
MAX4527CPA+ is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition front-ends requiring stable component supply, long-term manufacturability, and traceable sourcing.
Supply support for MAX4527CPA+ 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.
The MAX4526/MAX4527 product line was engineered specifically for DC and low-frequency phase-reversal tasks - including chopper amplifiers, self-calibrating sensors, and balanced modulation - where matched switching, ultra-low leakage, and rail-to-rail operation are non-negotiable.
FAQ
What is the maximum operating temperature range for the MAX4527CPA+?
The MAX4527CPA+ is rated for operation from 0°C to +70°C. This commercial-grade temperature range is specified in the Ordering Information table and applies to all variants with the 'C' suffix. The device's leakage current remains ≤10nA up to +85°C, but full parametric guarantees - including on-resistance match and charge injection - are only assured within the 0°C to +70°C range for the MAX4527CPA+.
Can the MAX4527CPA+ operate from a single +5V supply?
Yes, the MAX4527CPA+ supports single-supply operation from +4.5V to +36V. When using +5V, connect V− to GND. Note that on-resistance increases (to ~300Ω typ) and transition time lengthens (~500ns) compared to ±15V operation, but rail-to-rail signal handling and 0.8V–2.4V logic thresholds remain fully functional - verified in Typical Operating Characteristics figures TOC-02 and TOC-12.
Does the MAX4527CPA+ require external pull-up or pull-down resistors on the IN pin?
No, the MAX4527CPA+ does not require external biasing on the IN pin. Its logic inputs have internally defined TTL/CMOS-compatible thresholds (0.8V low, 2.4V high) and are ESD-protected to V+ and V− - not GND - allowing direct connection to microcontroller GPIO or FPGA outputs without additional components, even when V− is negative.
How is break-before-make timing enforced in the MAX4527CPA+?
The MAX4527CPA+ guarantees break-before-make via internal logic design: the control signal path to the P-channel and N-channel switch gates is intentionally skewed to ensure all four analog paths (A-X, A-Y, B-X, B-Y) disconnect before any reconnect. Measured tBBM is 1–5ns at +25°C with ±15V supplies - documented in Electrical Characteristics Table on page 3 of the datasheet.
Is the MAX4527CPA+ pin-compatible with the MAX4527CUA (µMAX) package?
No, the MAX4527CPA+ (8-pin plastic DIP) is not pin-compatible with the MAX4527CUA (8-pin µMAX). While both share identical pin functions and ordering suffix logic ('C' = 0°C to +70°C), their physical footprints differ: DIP has 0.300″ row spacing and through-hole leads; µMAX has 3mm × 3mm body, 0.65mm pitch, and gull-wing surface-mount leads. PCB layout must be redesigned for package change.
MAX4527CPA+ 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4527CPA+ FAQ
1.How can I place an order for MAX4527CPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4527CPA+ 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 MAX4527CPA+ reliable?
The price and inventory of MAX4527CPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4527CPA+ is usually 5 days.
3.What payment methods are accepted for MAX4527CPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4527CPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4527CPA+?
MAX4527CPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4527CPA+ 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 MAX4527CPA+?
For technical support, including MAX4527CPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4527CPA+ requirements.
6.How does Aetrix verify that MAX4527CPA+ is sourced from the original manufacturer or authorized distributors?
All MAX4527CPA+ 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 MAX4527CPA+ meets industry standards.
7.What is the process for return or replacement of MAX4527CPA+?
All MAX4527CPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4527CPA+, 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 MAX4527CPA+ part is unused and in its original packaging.
Return procedure for MAX4527CPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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