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Analog Devices Inc./Maxim Integrated MAX4233ABC+TG45
- Part No.:
- MAX4233ABC+TG45
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFBGA, CSPBGA
- Datasheet:
-
MAX4233ABC+TG45.pdf
- Description:
- IC CMOS 2 CIRCUIT 12UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,218
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Product details
Overview
MAX4233ABC+TG45 from Maxim Integrated is a dual, rail-to-rail input/output CMOS operational amplifier with integrated shutdown control, designed for high-current output drive (200mA peak) in RF power amplifier biasing and portable audio applications. It operates from a single 2.7V to 5.5V supply, delivers 10MHz gain-bandwidth product and 10V/μs slew rate, and is packaged in a 10-bump UCSP (1.5mm × 1.5mm) for space-constrained handset and headset designs.
For engineers reviewing the MAX4233ABC+TG45 datasheet, MAX4233ABC+TG45 pinout, MAX4233ABC+TG45 application, or MAX4233ABC+TG45 equivalent, key selection criteria include dual-channel shutdown independence, 780pF capacitive-load stability, rail-to-rail swing into 32Ω loads, and guaranteed operation across –40°C to +125°C industrial temperature range.
Technical Context
The MAX4233ABC+TG45 integrates two independent amplifiers sharing a common VDD and VSS, each with dedicated SHDN1 and SHDN2 pins enabling per-channel disable. Its parallel n- and p-channel input stage supports rail-to-rail common-mode input (VSS to VDD), while the output stage achieves <500mV headroom to both rails under 32Ω load at 2.7V supply.
It features unity-gain stability with capacitive loads up to 780pF, 100dB large-signal voltage gain (RL = 100kΩ), and low quiescent current of 1.1mA per amplifier at 2.7V - dropping to <1μA in shutdown. Shutdown output is actively driven low (typ. 68mV into 200Ω), ensuring reliable RF PA disablement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7V to 5.5V single supply - enables direct integration into battery-powered 3.3V/5V systems without level-shifting. |
| Gain-Bandwidth Product | 10MHz - supports stable closed-loop operation up to ~1MHz at gain ≥10, suitable for audio preamp and PA bias control loops. |
| Slew Rate | 10V/μs - ensures faithful reproduction of fast transient signals in headphone drivers and RF envelope tracking paths. |
| Output Drive | 200mA peak (at 5V) - directly drives 32Ω headphones or biases Class-AB/Class-E RF PAs without external buffers. |
| Shutdown Current | <1μA per amplifier (VDD = 2.7V) - extends battery life in intermittent-use portable devices like Bluetooth headsets. |
| Capacitive Load Stability | 780pF - allows direct connection to ADC input filters or long PCB traces without external isolation resistors. |
| Operating Temperature | –40°C to +125°C - qualified for automotive infotainment and industrial handheld equipment environments. |
Pinout & Package
MAX4233ABC+TG45 is housed in a 10-bump UCSP package (1.5mm × 1.5mm, 0.5mm pitch), optimized for minimal PCB footprint in ultra-compact wireless modules. The bump configuration follows standard UCSP layout with exposed substrate for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | IN1+ | Noninverting input of Amplifier 1 - accepts rail-to-rail common-mode signals (VSS to VDD). |
| 2 (A2) | IN1− | Inverting input of Amplifier 1 - used for feedback or differential sensing in bias control circuits. |
| 3 (B1) | SHDN1 | Independent shutdown control for Amplifier 1 - logic-low disables output and reduces IDD to <1μA. |
| 4 (B2) | VSS | Negative supply - must be connected to ground in single-supply configurations. |
| 5 (B3) | OUT1 | Amplifier 1 output - rail-to-rail capable, drives 32Ω loads with ≤500mV saturation voltage at 2.7V. |
| 6 (C1) | IN2+ | Noninverting input of Amplifier 2 - electrically isolated from Amplifier 1 for dual-path signal conditioning. |
| 7 (C2) | IN2− | Inverting input of Amplifier 2 - supports independent gain-setting resistor networks per channel. |
| 8 (C3) | SHDN2 | Independent shutdown control for Amplifier 2 - enables asymmetric power management in multi-PA systems. |
| 9 (C4) | OUT2 | Amplifier 2 output - identical drive capability and voltage swing as OUT1, fully decoupled in shutdown. |
| 10 (A3) | VDD | Positive supply - bypass with 0.1μF ceramic capacitor close to pin to suppress high-frequency noise. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent shutdown | SHDN1/SHDN2 allow per-amplifier disable - critical for dynamic RF PA sequencing and power domain isolation. |
| Rail-to-rail I/O with no phase reversal | Operates with inputs at VSS or VDD and outputs within 500mV of either rail - eliminates clipping in single-supply audio paths. |
| 200mA peak output drive | Directly sources/sinks 30mA into 200Ω or 10mA into 32Ω at full swing - removes need for discrete output transistors. |
| 780pF capacitive-load stability | Remains stable driving ADC input filters or long traces without added series resistance - simplifies layout and BOM. |
| 100dB open-loop gain (RL = 100kΩ) | Ensures <0.1% gain error in precision bias control loops where PA operating point must be tightly regulated. |
| 1.1mA quiescent current per amp | Enables always-on monitoring functions (e.g., PA temperature compensation) while minimizing standby power draw. |
Applications
| RF Power Amplifier Bias Control | Portable Headphone Driver |
|---|---|
Use Scenario: Precise DC bias voltage generation for GaAs/GaN RF PAs in 4G/5G handsets and IoT transceivers. IC Role / Device Role / Timing Role: Dual op-amp configures as independent current-source bias controllers - one channel sets PA collector current, the other regulates gate voltage. Use Value: Active low-shutdown output ensures RF PA is fully disabled during sleep mode, preventing antenna leakage and regulatory noncompliance. |
Use Scenario: Single-supply stereo headphone driver delivering 60mW/channel into 32Ω loads from 5V rail. IC Role / Device Role / Timing Role: Each amplifier operates in noninverting configuration with AC-coupled input and output - provides rail-to-rail swing and low THD+N (0.0005% @ 10kHz). Use Value: Eliminates bulky DC-blocking capacitors via rail-to-rail output swing, reducing solution size by >30% vs. legacy op-amps. |
| Wireless Headset Audio Processing | Industrial Sensor Signal Conditioning |
Use Scenario: Low-power audio path in Bluetooth headsets requiring simultaneous mic preamp and speaker driver. IC Role / Device Role / Timing Role: Amplifier 1 conditions microphone signal (gain = 100V/V), Amplifier 2 drives earpiece speaker (gain = 2V/V) - both independently shut down during mute. Use Value: Dual shutdown reduces system idle current to sub-μA level, extending talk time by >25% in compact form factors. |
Use Scenario: High-accuracy current-loop transmitter interface in industrial PLC analog I/O modules. IC Role / Device Role / Timing Role: Configured as precision voltage-to-current converter (4–20mA) with rail-to-rail input enabling 0–5V sensor input range. Use Value: 100dB open-loop gain and ±8mV offset ensure <0.05% FSR accuracy over –40°C to +85°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp with shutdown applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4233AUB+T | Same die, but in 10-pin μMAX package (3mm × 3mm) - 4× larger footprint, better thermal dissipation (derate 8.8mW/°C vs. 5.6mW/°C). | Preferred for prototyping or higher-power continuous operation where UCSP thermal limits may be exceeded. | Select when board space permits and >150mW sustained power dissipation is required. |
| OPA2350UA/2K5 | TI dual RRIO op-amp (5.5V, 38MHz GBWP, 22V/μs) - no shutdown, higher bandwidth, but only 60mA output drive. | Suitable for high-fidelity audio buffering but cannot replace MAX4233ABC+TG45 in RF PA biasing due to insufficient current drive. | Choose only for signal-chain amplification where shutdown and 200mA drive are not required. |
Compared with MAX4233AUB+T, the MAX4233ABC+TG45 offers 75% smaller footprint and faster enable time (6μs vs. 10μs), while OPA2350UA lacks shutdown and cannot drive 32Ω loads - making MAX4233ABC+TG45 uniquely suited for miniaturized, power-gated RF front-end biasing.
Availability
MAX4233ABC+TG45 is available at Aetrix Electronics and suitable for RF power amplifier biasing, portable headphone driver designs, and industrial sensor signal conditioning requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.
Supply support for MAX4233ABC+TG45 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, communications, and consumer applications.
The MAX4230–MAX4234 family was designed specifically for high-output-drive, rail-to-rail operation in portable wireless infrastructure - targeting RF PA bias control, headset audio, and low-power signal conditioning where space, power, and drive capability are critical constraints.
FAQ
What is the maximum capacitive load the MAX4233ABC+TG45 can drive stably?
The MAX4233ABC+TG45 is specified to remain stable with capacitive loads up to 780pF when configured for unity-gain operation. This is verified across temperature and supply voltage ranges, eliminating the need for external isolation resistors in most filter or cable-driving applications. For loads exceeding 780pF, adding a small series resistor (e.g., 10Ω–39Ω) at the output restores stability without degrading audio fidelity or PA control loop response.
Does the MAX4233ABC+TG45 support true rail-to-rail input and output operation?
Yes, the MAX4233ABC+TG45 supports rail-to-rail input (common-mode range from VSS to VDD) and rail-to-rail output (swing within 500mV of VSS or VDD into 32Ω at 2.7V). Its parallel n- and p-channel input stage ensures no phase reversal when inputs exceed supply rails, and the output stage actively pulls to within millivolts of either rail under light loads - critical for single-supply headset and sensor interfaces.
How does the shutdown function operate on the MAX4233ABC+TG45?
The MAX4233ABC+TG45 features two independent shutdown pins (SHDN1 and SHDN2). Pulling either pin low disables its respective amplifier, reducing quiescent current to <1μA (at 2.7V) and actively driving the corresponding output to VSS (~68mV into 200Ω). This ensures complete RF PA disablement in handset applications. Both channels can be controlled separately, enabling asymmetric power management in multi-PA architectures.
What is the thermal performance limitation of the MAX4233ABC+TG45 in its UCSP package?
The MAX4233ABC+TG45 in 10-bump UCSP has a thermal derating factor of 5.6mW/°C above +70°C, with a maximum continuous power dissipation of 448.7mW at TA = +70°C. Due to its 200mA output capability, power dissipation must be calculated per application using RMS voltage/current and phase angle. For continuous 32Ω headphone drive at 5V, peak dissipation reaches ~196mW - well within safe limits, but coupling capacitors are recommended to eliminate DC current and further reduce thermal load.
Can the MAX4233ABC+TG45 be used in automotive applications?
Yes - the MAX4233ABC+TG45 is rated for operation from –40°C to +125°C and is RoHS-compliant (+ suffix). While not explicitly AEC-Q100 certified in this specific variant (the /V automotive grade uses different top mark ABF vs. ABF for standard), its electrical specifications and temperature range meet requirements for infotainment audio subsystems and telematics sensor interfaces in passenger vehicles. For full AEC-Q100 compliance, refer to MAX4233ABC/V+TG45.
MAX4233ABC+TG45 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFBGA, CSPBGA
- Packaging:
- Tape & Reel (TR)
- 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+TG45 FAQ
1.How can I place an order for MAX4233ABC+TG45 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4233ABC+TG45 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+TG45 reliable?
The price and inventory of MAX4233ABC+TG45 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4233ABC+TG45 is usually 5 days.
3.What payment methods are accepted for MAX4233ABC+TG45?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4233ABC+TG45 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4233ABC+TG45?
MAX4233ABC+TG45 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4233ABC+TG45 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+TG45?
For technical support, including MAX4233ABC+TG45 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4233ABC+TG45 requirements.
6.How does Aetrix verify that MAX4233ABC+TG45 is sourced from the original manufacturer or authorized distributors?
All MAX4233ABC+TG45 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+TG45 meets industry standards.
7.What is the process for return or replacement of MAX4233ABC+TG45?
All MAX4233ABC+TG45 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4233ABC+TG45, 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+TG45 part is unused and in its original packaging.
Return procedure for MAX4233ABC+TG45:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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