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Analog Devices Inc./Maxim Integrated MAX4528CUA+T
- Part No.:
- MAX4528CUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4528CUA+T.pdf
- Description:
- IC SWITCH SPDT X 2 110OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,484
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Product details
Overview
MAX4528CUA+T from Maxim Integrated is a low-voltage, phase-reversal analog switch IC configured as a bridge-switch array for precision DC and low-frequency signal inversion. It operates from +2.7V to +12V single supply or ±2.7V to ±6V dual supplies, delivers ≤110Ω on-resistance (±5V), ≤5pC charge injection, <100ns transition time, and supports rail-to-rail analog signals from V− to V+. It is used in chopper-stabilized amplifiers requiring precise polarity reversal without op-amp offset accumulation.
For engineers reviewing the MAX4528CUA+T datasheet, MAX4528CUA+T pinout, MAX4528CUA+T application, or MAX4528CUA+T equivalent, key selection criteria include verified on-resistance matching (≤7Ω), leakage current at temperature (20nA @ +85°C), TTL/CMOS-compatible logic thresholds (0.8V–2.4V), and µMAX-8 package compatibility with high-density PCB layouts.
Technical Context
The MAX4528CUA+T implements a fully integrated bridge configuration of two normally open and two normally closed CMOS switches, enabling true analog signal phase reversal under digital control via a single IN pin. Its internal gate drive uses out-of-phase V+ and V− signals to bias paralleled N- and P-channel MOSFETs, ensuring symmetrical conduction and minimal charge injection.
It is characterized for ±5V dual-supply operation but maintains functional integrity across +2.7V–+12V single supply and asymmetric bipolar rails. Analog paths are fully isolated from GND-signals swing strictly between V− and V+, with ESD diodes clamping each terminal to both supplies-not to ground-enabling robust rail-to-rail handling and predictable leakage behavior tied to supply bias rather than reference potential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply or ±2.7V to ±6V dual supply - enables flexible power architecture in battery-powered and industrial systems |
| On-Resistance (RON) | 110Ω max (±5V) - ensures minimal signal attenuation and gain error in precision instrumentation paths |
| On-Resistance Match | 7Ω max - critical for balanced modulator/demodulator carrier suppression and chopper amplifier symmetry |
| Charge Injection | 5pC max - limits voltage glitch and settling time in sampled-data systems like auto-zeroing ADC front-ends |
| Transition Time | <100ns (±5V) - supports fast switching in chopper clock frequencies up to ~1MHz |
| Leakage Current | 20nA max @ +85°C - preserves DC accuracy in high-impedance sensor interfaces and integrator circuits |
| Logic Thresholds | 0.8V to 2.4V - guarantees interoperability with both 3.3V/5V CMOS and legacy TTL logic families |
Pinout & Package
The MAX4528CUA+T is housed in an 8-pin µMAX package (3mm × 3mm, 0.5mm pitch), thermally enhanced with exposed paddle, suitable for space-constrained portable and test equipment designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 A | Analog input/output terminal A | Interchangeable bidirectional node; connected to Y when IN = LOW, X when IN = HIGH - forms one leg of phase-reversal bridge |
| 2 B | Analog input/output terminal B | Interchangeable bidirectional node; connected to X when IN = LOW, Y when IN = HIGH - forms complementary leg of bridge |
| 3 GND | Digital ground reference | Reference for logic circuitry only; no analog signal path connection - enables isolation of digital noise from analog paths |
| 4 IN | Logic-level control input | TTL/CMOS-compatible; drives internal translators to switch A/B ↔ X/Y routing - determines phase state (0° or 180°) |
| 5 V− | Negative analog supply | Set to GND for single-supply operation; defines lower bound of analog signal range (V− to V+) |
| 6 Y | Analog output terminal Y | Output node receiving A or B depending on IN state; optimized for AC balance when paired with X as differential output |
| 7 X | Analog output terminal X | Output node receiving B or A depending on IN state; used with Y to deliver inverted or non-inverted differential signal pair |
| 8 V+ | Positive analog/digital supply | Internally tied to substrate; powers analog switches and logic; sets upper analog signal limit and logic threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full V− to V+ swing with no dead zone - essential for maximizing dynamic range in low-voltage sensor interfaces |
| Break-before-make timing | 1ns to 20ns - prevents momentary short-circuit between A/B and X/Y during state transitions, avoiding signal corruption |
| ESD protection | >2kV per Method 3015.7 - ensures robustness during board assembly and field handling without external protection components |
| Low quiescent current | 1.0µA max - extends battery life in portable chopper amplifiers and handheld test instruments |
| Small footprint packaging | 8-pin µMAX (3mm × 3mm) - reduces PCB area by >50% vs. SO-8 while maintaining thermal performance for high-density layouts |
Applications
| Chopper-Stabilized Amplifiers | Balanced Modulators/Demodulators |
|---|---|
Use Scenario: Reversing input polarity at precise intervals to cancel amplifier input offset voltage in ultra-low-drift instrumentation amplifiers. IC Role / Device Role / Timing Role: Phase-reversal switch providing synchronous, low-charge-injection signal inversion synchronized to chopper clock. Use Value: Enables sub-µV offset stability over temperature and time by eliminating cumulative op-amp input errors without external relays or discrete FET arrays. | Use Scenario: Carrier-synchronous switching of differential analog inputs in precision RF demodulation and lock-in amplifier front-ends. IC Role / Device Role / Timing Role: Balanced analog switch acting as a synchronous mixer core, driven by square-wave carrier applied to IN pin. Use Value: Achieves >70dB carrier suppression (±5V supplies) due to matched RON and low capacitance imbalance, reducing need for trimming networks. |
| Data Acquisition Systems | Audio-Signal Routing |
Use Scenario: Polarity-selectable input stage in multi-channel, high-resolution SAR or sigma-delta ADCs for signed differential measurements. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling software-configurable input polarity per channel without hardware rework. Use Value: Eliminates need for external inverting op-amps or relay-based polarity selection, reducing component count and board area in compact DAQ modules. | Use Scenario: Inverting/non-inverting signal path selection in professional audio mixers and headphone amplifier feedback loops. IC Role / Device Role / Timing Role: Low-distortion, low-THD analog switch routing line-level or headphone-drive signals with phase control. Use Value: Delivers THD <0.01% at 1kHz (±5V) and flat frequency response to 10MHz, preserving audio fidelity without added op-amp stages. |
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 |
|---|---|---|---|
| MAX4526CUA+T | Single-pole double-throw (SPDT) topology; no bridge configuration; lacks phase-reversal capability | Suitable for basic signal routing but cannot perform polarity inversion or balanced modulation | Select only when simple channel selection-not phase reversal-is required |
| ADG1419BRMZ | Higher on-resistance (1.3Ω typical), wider supply range (±15V), but no guaranteed RON match or charge injection spec below 10pC | Used in higher-voltage industrial signal conditioning where precision chopper symmetry is not critical | Choose for ±15V operation or when layout allows larger MSOP-10 package; avoid for chopper amplifier zeroing |
Compared with MAX4528CUA+T, MAX4526CUA+T provides basic switching without phase control, while ADG1419BRMZ trades chopper-grade matching and low charge injection for higher voltage tolerance-making MAX4528CUA+T uniquely suited for sub-µV offset cancellation and carrier-suppressed modulation.
Availability
MAX4528CUA+T is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, data acquisition systems, test equipment, and audio-signal routing requiring stable component supply and long-term manufacturability.
Supply support for MAX4528CUA+T 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4528CUA+T belongs to Maxim's precision analog switch family, designed specifically for DC- and low-frequency phase-reversal tasks in chopper amplifiers, self-calibrating systems, and carrier-synchronous modulation where symmetry, low leakage, and minimal charge injection are mandatory.
FAQ
What is the operating temperature range for the MAX4528CUA+T?
The MAX4528CUA+T is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with its intended use in benchtop test equipment, portable instrumentation, and non-automotive industrial systems where extended thermal margins are not required. The device's leakage current remains within specification (≤20nA) at +85°C, though full parametric compliance is guaranteed only within the 0°C to +70°C range specified for the C-grade suffix.
Can the MAX4528CUA+T operate from a single 3.3V supply?
Yes, the MAX4528CUA+T supports +2.7V to +12V single-supply operation. When using a 3.3V supply, connect V− to GND and ensure the IN logic signal meets the adjusted thresholds (VINL = 0.6V min, VINH = 0.9V min). On-resistance increases to 250Ω–900Ω depending on signal voltage, and transition time extends to 150–400ns-parameters confirmed in the +3V Electrical Characteristics table of the MAX4528CUA+T datasheet.
How does the MAX4528CUA+T achieve phase reversal without op-amps or transformers?
The MAX4528CUA+T achieves phase reversal through an internal bridge-switch topology: terminals A and B serve as inputs, X and Y as outputs, and the IN pin controls cross-coupling. When IN is LOW, A→Y and B→X; when IN is HIGH, A→X and B→Y-effectively swapping output polarity. This hard-switched, resistor-matched method avoids op-amp offset drift and transformer size/weight, delivering true 180° inversion with ≤7Ω RON match and ≤5pC charge injection.
Is the MAX4528CUA+T pin-compatible with other variants in the MAX4528 family?
Yes, all MAX4528 variants-including MAX4528CPA, MAX4528CSA, and MAX4528CUA+T-share identical 8-pin pinouts across DIP, SO, and µMAX packages. The only differences are temperature grade (C = 0°C to +70°C) and package type; electrical specifications and switching behavior are identical. This allows drop-in replacement during prototyping or volume production when upgrading from DIP to µMAX for space savings.
What is the maximum analog signal frequency supported by the MAX4528CUA+T?
The MAX4528CUA+T is optimized for DC and low-frequency applications up to 100kHz for balanced modulation, with usable bandwidth beyond 10MHz (−3dB point). Its −3dB bandwidth exceeds 10MHz under ±5V supplies, and off-isolation remains >70dB up to 1MHz. For carrier frequencies above 100kHz, performance depends on external layout symmetry and source/load impedance matching-critical for maintaining carrier suppression in modulator applications.
MAX4528CUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 110Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 6V
- 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-uMAX/uSOP
MAX4528CUA+T FAQ
1.How can I place an order for MAX4528CUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4528CUA+T 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 MAX4528CUA+T reliable?
The price and inventory of MAX4528CUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4528CUA+T is usually 5 days.
3.What payment methods are accepted for MAX4528CUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4528CUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4528CUA+T?
MAX4528CUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4528CUA+T 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 MAX4528CUA+T?
For technical support, including MAX4528CUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4528CUA+T requirements.
6.How does Aetrix verify that MAX4528CUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4528CUA+T 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 MAX4528CUA+T meets industry standards.
7.What is the process for return or replacement of MAX4528CUA+T?
All MAX4528CUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4528CUA+T, 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 MAX4528CUA+T part is unused and in its original packaging.
Return procedure for MAX4528CUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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