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Analog Devices Inc./Maxim Integrated MAX4233ABC
- Part No.:
- MAX4233ABC
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFBGA, CSPBGA
- Datasheet:
-
MAX4233ABC.pdf
- Description:
- IC CMOS 2 CIRCUIT 12UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,610
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Product details
Overview
The MAX4233ABC from Maxim Integrated is a dual, rail-to-rail input/output CMOS operational amplifier with independent shutdown control per channel, 10MHz gain-bandwidth product, 10V/µs slew rate, and 200mA peak output drive capability-designed for RF power amplifier biasing and portable audio driver applications in wireless handsets and battery-powered systems.
For engineers reviewing the MAX4233ABC datasheet, MAX4233ABC pinout, MAX4233ABC application, or MAX4233ABC equivalent, key selection criteria include dual-channel shutdown timing (1µs enable/disable), UCSP package footprint constraints, rail-to-rail operation down to 2.7V supply, capacitive-load stability up to 780pF, and automotive-grade temperature range (-40°C to +125°C).
Technical Context
The MAX4233ABC integrates two independent high-output-drive op amps in a single 10-bump UCSP package, each featuring parallel n- and p-channel input stages enabling true rail-to-rail common-mode input range (VSS to VDD) and rail-to-rail output swing within 500mV of rails under 32Ω load. Its shutdown logic actively pulls outputs to VSS when SHDNx is low.
Each amplifier delivers 200mA peak sourcing/sinking current, supports unity-gain stability with up to 780pF capacitive loads, and maintains 10MHz GBWP and 10V/µs slew rate across the full -40°C to +125°C automotive temperature range while consuming only 1.1mA per amplifier at 2.7V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10MHz - enables stable closed-loop operation up to ~1MHz at gain ≥10, suitable for audio and PA bias control loops. |
| Slew Rate | 10V/µs - supports fast transient response for headset drivers and RF PA envelope tracking without distortion. |
| Output Drive | 200mA peak - drives 32Ω headphones directly and biases RF PAs requiring high-current DC bias control. |
| Supply Voltage Range | 2.7V to 5.5V - compatible with Li-ion, Li-poly, and regulated 3.3V/5V rails in portable and automotive systems. |
| Shutdown Current | <1µA per amplifier - reduces system standby power in battery-critical applications like wireless headsets. |
| Capacitive Load Stability | 780pF - eliminates need for external isolation resistors when driving ADC inputs or long PCB traces. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial embedded environments. |
Pinout & Package
The MAX4233ABC is housed in a 10-bump UCSP (Ultra Compact Silicon Package) measuring 1.5mm × 1.5mm × 0.5mm, with bottom-side solder bumps and exposed die pad connected to VSS. This ultra-small footprint provides the smallest area for a dual op amp with independent shutdown in the MAX4230 family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS (Pin 1, 5) | Negative supply / ground reference | Common return path for both amplifiers and SHDN logic; exposed pad must be soldered to PCB ground plane for thermal and electrical performance. |
| VDD (Pin 10) | Positive supply input | Single 2.7V–5.5V rail powers both amplifiers; requires local 0.1µF ceramic bypass capacitor. |
| IN1+, IN1− (Pins 2, 3) | Noninverting/inverting inputs for Amp 1 | Differential pair with rail-to-rail common-mode range (VSS to VDD); input capacitance 8pF affects high-frequency stability. |
| OUT1 (Pin 4) | Amplifier 1 output | Capable of ±200mA peak drive; output impedance <10Ω in shutdown; rail-to-rail swing limited by load current. |
| SHDN1 (Pin 6) | Shutdown control for Amp 1 | Active-low logic: drives OUT1 to VSS when low; VIH = 0.57×VDD, VIL = 0.8V; enables independent channel power gating. |
| IN2+, IN2− (Pins 7, 8) | Noninverting/inverting inputs for Amp 2 | Electrically identical to Amp 1 inputs; supports independent signal paths for stereo or dual-bias applications. |
| OUT2 (Pin 9) | Amplifier 2 output | Functionally identical to OUT1; allows concurrent biasing of two RF PAs or stereo headphone drive without cross-talk. |
| SHDN2 (Pin 10) | Shutdown control for Amp 2 | Independent of SHDN1; permits asymmetric power management (e.g., disable only one PA channel during sleep mode). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O operation | Enables full dynamic range utilization from 2.7V supply in single-ended configurations-critical for low-voltage portable audio and bias circuits. |
| Independent per-channel shutdown | Reduces total system quiescent current to sub-µA levels when either amplifier is idle, extending battery life in intermittent-use applications. |
| 780pF capacitive-load stability | Eliminates need for series output isolation resistors when driving ADCs, filters, or long interconnects-preserving signal integrity and simplifying layout. |
| 200mA peak output current | Directly drives 32Ω headphones at 60mW/channel and supplies precise DC bias to RF power amplifiers without external buffers. |
| Automotive temperature range | Guarantees parametric performance from -40°C to +125°C-qualified for infotainment, telematics, and ADAS subsystems. |
Applications
| RF PA Bias Control | Portable Headphone Driver |
|---|---|
Use Scenario: Biasing RF power amplifiers in cellular handsets and Bluetooth headsets to maintain linearity and efficiency across varying transmit power levels. IC Role / Device Role / Timing Role: Dual-channel precision DC bias generator with independent shutdown-each amplifier sets VGS/VBE of a separate PA stage. Use Value: Enables fast PA enable/disable sequencing (1µs shutdown time) and eliminates unconverted RF leakage during sleep modes via active low-impedance output pull-down. | Use Scenario: Driving 32Ω stereo headphones from a single 3.3V or 5V supply in smartphones, tablets, and portable media players. IC Role / Device Role / Timing Role: Dual rail-to-rail output buffer delivering 60mW/channel with <1% THD+N at 1kHz-configured as noninverting amplifier with AC-coupled input. Use Value: Delivers full audio bandwidth (20Hz–20kHz) with 10MHz GBWP and 10V/µs slew rate, while 200mA drive ensures low-distortion output into reactive loads. |
| Audio Hands-Free Car Kit | Laptop Audio Amplification |
Use Scenario: Providing microphone preamplification and speaker drive in automotive hands-free kits operating in harsh temperature environments. IC Role / Device Role / Timing Role: Dual op amp configured as low-noise mic preamp (Amp 1) and loudspeaker driver (Amp 2), both leveraging rail-to-rail I/O and shutdown control. Use Value: -40°C to +125°C rating ensures reliable operation in parked-car summer heat and winter cold; 12nV/√Hz input noise preserves SNR in mic front-end. | Use Scenario: Boosting line-level audio signals to drive internal speakers or external 32Ω headphones in ultrabooks and 2-in-1 laptops. IC Role / Device Role / Timing Role: Dual-channel voltage follower/buffer isolating codec DAC outputs from variable speaker/headphone loads. Use Value: 1.1mA per amplifier quiescent current minimizes impact on system power budget; UCSP package saves board space in thin form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-output-drive op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX44260AUB+T | Single 10MHz op amp, 150mA drive, same UCSP-8 package but no shutdown; higher input offset (±1.5mV vs. ±0.85mV). | Requires two devices for dual-channel use; lacks independent shutdown-unsuitable for asymmetric PA bias control. | Select MAX4233ABC when dual-channel integration, per-channel shutdown, and 200mA drive are required in minimal area. |
| OPA2991IDGKT | Dual 10MHz op amp, 120mA drive, SOT-23-8 package, shutdown shared across both channels, 1.8V–5.5V supply. | Shared shutdown prevents independent channel control; lower output current limits 32Ω drive capability at full swing. | Choose MAX4233ABC for applications demanding per-channel power gating, higher output current, and automotive temperature compliance. |
Compared with MAX44260AUB+T and OPA2991IDGKT, the MAX4233ABC uniquely combines dual-channel integration, independent shutdown per amplifier, 200mA peak output drive, and UCSP packaging-enabling compact, low-power, and thermally robust RF PA bias and portable audio solutions where channel-level control and high-current capability are essential.
Availability
The MAX4233ABC is available at Aetrix Electronics and suitable for RF power amplifier biasing, portable headphone driver designs, automotive hands-free systems, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MAX4233ABC 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 automotive, industrial, communications, and consumer applications.
The MAX4230–MAX4234 family was engineered specifically for high-output-drive, rail-to-rail operational amplification in space-constrained, battery-sensitive systems-targeting RF PA bias control and portable audio driver functions in wireless handsets and automotive infotainment.
FAQ
What is the maximum output current capability of the MAX4233ABC?
The MAX4233ABC delivers up to 200mA peak sourcing or sinking current per amplifier channel, verified across the full -40°C to +125°C temperature range and 2.7V to 5.5V supply. This enables direct drive of 32Ω headphones and precise DC biasing of RF power amplifiers without external buffers-critical for compact wireless handset designs where board space and power efficiency are constrained.
Does the MAX4233ABC support rail-to-rail input and output operation?
Yes, the MAX4233ABC supports true rail-to-rail input common-mode range (VSS to VDD) and rail-to-rail output swing. Its parallel n- and p-channel input stage accepts inputs from ground to supply rail, while the output can swing within 500mV of VDD and VSS under 32Ω load at 2.7V supply-ensuring maximum dynamic range utilization in low-voltage single-supply applications such as portable audio and RF PA bias circuits.
What is the shutdown behavior of the MAX4233ABC outputs?
When either SHDN1 or SHDN2 pin is pulled low, the corresponding amplifier output is actively driven to VSS (ground) with low impedance (~10Ω), not left floating. This ensures RF power amplifiers remain fully disabled during sleep mode, preventing unintended RF leakage. The shutdown supply current drops to <1µA per amplifier at 2.7V, and enable/disable transitions occur in 1µs-enabling fast, deterministic power-state control in time-critical wireless systems.
Which package type does the MAX4233ABC use, and what are its key mechanical characteristics?
The MAX4233ABC uses a 10-bump UCSP (Ultra Compact Silicon Package) measuring 1.5mm × 1.5mm × 0.5mm with bottom-side solder bumps. The exposed die pad is internally connected to VSS and must be soldered to a PCB ground plane for optimal thermal dissipation and electrical performance. This package provides the smallest footprint for a dual op amp with independent shutdown in the MAX4230 family-ideal for ultra-thin portable and automotive modules.
Can the MAX4233ABC drive capacitive loads, and what is the maximum stable value?
Yes, the MAX4233ABC is unity-gain stable with capacitive loads up to 780pF-verified in the manufacturer's AC electrical characteristics table. This eliminates the need for series output isolation resistors when driving ADC inputs, filter networks, or long PCB traces. For loads exceeding 780pF, an external isolation resistor (e.g., 39Ω) restores stability, as demonstrated in typical operating characteristic Figure 8 of the MAX4230–MAX4234 datasheet.
MAX4233ABC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFBGA, CSPBGA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 10V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 850 µV
- Current - Supply:
- 1.2mA (x2 Channels)
- Current - Output / Channel:
- 200 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UCSP
MAX4233ABC FAQ
1.How can I place an order for MAX4233ABC through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4233ABC 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 MAX4233ABC reliable?
The price and inventory of MAX4233ABC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4233ABC is usually 5 days.
3.What payment methods are accepted for MAX4233ABC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4233ABC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4233ABC?
MAX4233ABC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4233ABC 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 MAX4233ABC?
For technical support, including MAX4233ABC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4233ABC requirements.
6.How does Aetrix verify that MAX4233ABC is sourced from the original manufacturer or authorized distributors?
All MAX4233ABC 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 MAX4233ABC meets industry standards.
7.What is the process for return or replacement of MAX4233ABC?
All MAX4233ABC units undergo pre-shipment inspection (PSI). If there is an issue with MAX4233ABC, 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 MAX4233ABC part is unused and in its original packaging.
Return procedure for MAX4233ABC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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