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Analog Devices Inc./Maxim Integrated MAX4233ABC+T
- Part No.:
- MAX4233ABC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-WFBGA, CSPBGA
- Datasheet:
-
MAX4233ABC+T.pdf
- Description:
- IC CMOS 2 CIRCUIT 12UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:857
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Product details
Overview
MAX4233ABC+T from Maxim Integrated is a dual, rail-to-rail input/output CMOS operational amplifier with integrated shutdown control, designed for high-current output drive in RF power amplifier biasing and portable audio applications. It delivers 200mA peak output current per channel, features 10MHz gain-bandwidth product, 10V/μs slew rate, and operates from a single 2.7V to 5.5V supply. Its 10-bump UCSP package enables ultra-compact placement in space-constrained wireless handset front-end circuits.
For engineers reviewing the MAX4233ABC+T datasheet, MAX4233ABC+T pinout, MAX4233ABC+T application, or MAX4233ABC+T equivalent, key selection criteria include dual-channel shutdown independence, 780pF capacitive-load stability, rail-to-rail swing into 32Ω loads, and guaranteed performance across –40°C to +125°C.
Technical Context
The MAX4233ABC+T implements parallel n- and p-channel differential input stages to achieve true rail-to-rail common-mode input range (VSS to VDD), with each stage active over complementary voltage bands. Its output stage supports rail-to-rail swing-within 500mV of VDD and 360mV of VSS at 32Ω load-and actively drives outputs low during shutdown (VOUT(SHDN) ≤ 150mV at RL = 200Ω).
It features unity-gain stability with capacitive loads up to 780pF and includes independent SHDN1/SHDN2 pins enabling per-amplifier enable/disable. Shutdown supply current is <1μA per amplifier at VDD = 2.7V, and enable time from shutdown is 6μs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.5V single supply - supports direct integration into battery-powered 3.3V and 5V systems without level-shifting. |
| Gain-Bandwidth Product | 10MHz - enables 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 headset driver and RF envelope tracking applications. |
| Output Drive Current | 200mA peak per channel - sufficient to directly bias Class AB/ABE RF PAs or drive 32Ω headphones at 60mW/channel. |
| Input Offset Voltage | ±8mV max - maintains DC accuracy in precision bias networks where offset-induced PA quiescent current drift must be minimized. |
| Shutdown Current | <1μA per amplifier - extends battery life in always-on mobile devices by disabling unused channels without PCB rework. |
| Capacitive Load Stability | 780pF - eliminates need for external isolation resistors when driving ADC input filters or long PCB traces. |
Pinout & Package
The MAX4233ABC+T is housed in a 10-bump, 1.5mm × 1.5mm UCSP™ (Ultra Compact Silicon Package) with bottom-side solder bumps. This chip-scale package provides the smallest footprint area for a dual op amp with independent shutdown, optimized for high-density RF front-end modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | IN1+ | Noninverting input of Amplifier 1 - accepts rail-to-rail common-mode signals; requires matched layout to minimize offset drift. |
| 2 (A2) | IN1− | Inverting input of Amplifier 1 - forms feedback node; sensitive to stray capacitance due to 8pF input capacitance. |
| 3 (B1) | SHDN1 | Shutdown control for Amplifier 1 - logic-low disables amplifier and forces OUT1 to VSS; no pull-up required. |
| 4 (B2) | VSS | Negative supply - must be connected to ground in single-supply configurations; serves as reference for output low-state. |
| 5 (B3) | OUT1 | Amplifier 1 output - capable of sourcing/sinking 200mA; output impedance drops to 10Ω in shutdown mode. |
| 6 (C1) | IN2+ | Noninverting input of Amplifier 2 - electrically isolated from IN1+; allows independent signal paths in stereo or dual-PA biasing. |
| 7 (C2) | IN2− | Inverting input of Amplifier 2 - shares same input structure as IN1−; exhibits identical CMRR (≥46dB) and PSRR (≥70dB). |
| 8 (C3) | SHDN2 | Shutdown control for Amplifier 2 - operates independently of SHDN1; enables asymmetric power management in multi-PA systems. |
| 9 (C4) | OUT2 | Amplifier 2 output - identical drive capability and rail-to-rail swing as OUT1; supports bridge-tied load (BTL) configurations. |
| 10 (A3) | VDD | Positive supply - bypass with 0.1μF ceramic capacitor close to pin to suppress high-frequency noise coupling into sensitive analog nodes. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Common-mode range spans VSS to VDD; output swings within 500mV of rails into 32Ω - enables full utilization of battery voltage in single-supply audio/PA bias circuits. |
| Independent dual shutdown | SHDN1/SHDN2 pins disable respective amplifiers separately - permits dynamic channel gating in multi-band RF transceivers without cross-talk or timing skew. |
| High capacitive-load tolerance | Stable with up to 780pF load capacitance - eliminates need for output isolation resistors when driving ADC inputs or long interconnects in handheld PCBs. |
| No phase reversal on overdrive | Maintains correct polarity even when inputs exceed common-mode range - prevents latch-up or uncontrolled PA turn-on during signal clipping events. |
| Low quiescent current | 1.1mA per amplifier at 2.7V - reduces thermal load in thermally constrained modules and extends runtime in battery-operated headsets. |
Applications
| RF PA Bias Control | Portable Headphone Driver |
|---|---|
Use Scenario: Biasing Class AB/E RF power amplifiers in LTE/WCDMA handset front-ends to set quiescent collector current. IC Role / Device Role / Timing Role: Precision DC current source controlled via feedback loop; output voltage sets PA base/emitter bias point. Use Value: 200mA drive ensures stable bias under varying temperature and process corners; shutdown mode fully disables PA to prevent antenna leakage during sleep. | Use Scenario: Driving 32Ω stereo headphones from a single 3.3V or 5V supply in smartphones and portable media players. IC Role / Device Role / Timing Role: Single-supply headphone amplifier with DC-blocking capacitor; configured as noninverting gain stage with RIN/RF network. Use Value: Rail-to-rail output swing delivers >60mW/channel at 1% THD+N; 10MHz GBWP preserves audio fidelity up to 20kHz. |
| Audio Hands-Free Car Kit | DAC Output Buffer |
Use Scenario: Amplifying line-level audio signals for speaker output in automotive Bluetooth hands-free kits with wide ambient temperature range. IC Role / Device Role / Timing Role: Low-noise, high-slew-rate buffer between codec DAC and speaker driver stage; handles transient peaks without distortion. Use Value: 10V/μs slew rate prevents slew-induced distortion on bass transients; –40°C to +125°C rating ensures reliability in vehicle cabin environments. | Use Scenario: Isolating and driving the analog output of high-resolution DACs (e.g., 16–24-bit audio or precision instrumentation) into variable loads. IC Role / Device Role / Timing Role: Unity-gain voltage follower with low output impedance; rejects noise from digital sections while maintaining DC accuracy. Use Value: 100dB open-loop gain (RL = 100kΩ) minimizes gain error; 85dB PSRR suppresses supply noise coupling into sensitive analog outputs. |
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 electrical specs but in 10-pin μMAX® package (3mm × 3mm); no UCSP bump layout; higher thermal resistance. | Preferred for prototyping or manual assembly where solder-reflow of UCSP is impractical; less suitable for ultra-thin mobile designs. | Select MAX4233AUB+T when board assembly lacks fine-pitch UCSP reflow capability or when thermal margin above 150°C junction is required. |
| OPA2350UA/2K5 | Single-supply, rail-to-rail I/O dual op amp with 38MHz GBWP and 22V/μs slew rate; no integrated shutdown; 8-pin SOIC package. | Lacks per-channel shutdown and UCSP footprint; higher bandwidth suits wider-bandwidth signal conditioning but increases power consumption (5.2mA vs. 2.2mA). | Choose OPA2350UA/2K5 only if shutdown is implemented externally and higher speed is mandatory - not a drop-in replacement for MAX4233ABC+T. |
Compared with MAX4233AUB+T and OPA2350UA/2K5, the MAX4233ABC+T uniquely combines dual independent shutdown, 10-bump UCSP footprint, and guaranteed 200mA drive into 32Ω loads across automotive temperature range - making it irreplaceable in miniaturized RF bias modules where layout area and power sequencing are critical.
Availability
MAX4233ABC+T is available at Aetrix Electronics and suitable for RF power amplifier biasing, portable headphone driver circuits, automotive hands-free audio systems, and precision DAC buffering requiring stable component supply and extended temperature operation.
Supply support for MAX4233ABC+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, designs precision analog, mixed-signal, and power management ICs for demanding industrial, communications, and consumer applications.
The MAX4230–MAX4234 family was engineered specifically for high-output-drive, rail-to-rail operation in portable wireless infrastructure - targeting RF PA bias control and compact audio driver functions where space, power, and thermal constraints are severe.
FAQ
What is the operating temperature range for the MAX4233ABC+T?
The MAX4233ABC+T is specified for continuous operation from –40°C to +125°C. This extended range is validated per AEC-Q100 stress testing and makes the device suitable for automotive infotainment modules, industrial handheld radios, and outdoor wireless equipment where ambient temperatures fluctuate widely. All DC and AC parameters in the datasheet are guaranteed across this full range.
Does the MAX4233ABC+T support rail-to-rail input and output simultaneously?
Yes, the MAX4233ABC+T supports true rail-to-rail input (common-mode range from VSS to VDD) and rail-to-rail output (swing within 500mV of VDD and 360mV of VSS into 32Ω) simultaneously. This is achieved via parallel n- and p-channel input stages and a complementary output stage. The feature enables full dynamic range utilization in single-supply 3.3V or 5V systems without external level-shifting circuitry.
How does the shutdown function work on the MAX4233ABC+T?
The MAX4233ABC+T features two independent shutdown pins: SHDN1 (Pin 3) controls Amplifier 1 and SHDN2 (Pin 8) controls Amplifier 2. Pulling either pin low disables its respective amplifier, reducing supply current to <1μA and actively driving the corresponding output to VSS (≤150mV at RL = 200Ω). No external pull-up resistors are needed, and the enable time from shutdown is 6μs.
Can the MAX4233ABC+T drive a 32Ω load at full rail-to-rail swing?
Yes, the MAX4233ABC+T is explicitly characterized to drive 32Ω loads with rail-to-rail output swing: at VDD = 2.7V, output swing is guaranteed to be within 500mV of VDD and 360mV of VSS; at VDD = 5V, it improves to within 240mV of VDD and 224mV of VSS. This capability enables direct 60mW/channel headphone drive without external boost circuitry.
Is the MAX4233ABC+T pin-compatible with other devices in the MAX4230–MAX4234 family?
No, the MAX4233ABC+T is not pin-compatible with other members of the MAX4230–MAX4234 family due to its unique 10-bump UCSP package and dedicated SHDN1/SHDN2 pin assignments. While functional equivalents exist (e.g., MAX4233AUB+T in μMAX), mechanical compatibility requires matching land patterns. The UCSP footprint (B12+4) is distinct from SOT23, SC70, μMAX, or TSSOP packages used by other variants.
MAX4233ABC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-WFBGA, CSPBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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+T FAQ
1.How can I place an order for MAX4233ABC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4233ABC+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 MAX4233ABC+T reliable?
The price and inventory of MAX4233ABC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4233ABC+T is usually 5 days.
3.What payment methods are accepted for MAX4233ABC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4233ABC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4233ABC+T?
MAX4233ABC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4233ABC+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 MAX4233ABC+T?
For technical support, including MAX4233ABC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4233ABC+T requirements.
6.How does Aetrix verify that MAX4233ABC+T is sourced from the original manufacturer or authorized distributors?
All MAX4233ABC+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 MAX4233ABC+T meets industry standards.
7.What is the process for return or replacement of MAX4233ABC+T?
All MAX4233ABC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4233ABC+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 MAX4233ABC+T part is unused and in its original packaging.
Return procedure for MAX4233ABC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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