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Analog Devices Inc./Maxim Integrated MAX4288ESD
- Part No.:
- MAX4288ESD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4288ESD.pdf
- Description:
- IC BUFFER 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:598
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Product details
Overview
MAX4288ESD from Maxim Integrated is a dual, high-speed, unity-gain-stable voltage-feedback operational amplifier optimized as an ADC input buffer. It delivers 250MHz small-signal -3dB bandwidth, 350V/µs slew rate, and 88dBc SFDR at 5MHz while operating from a single +2.85V to +6.5V supply. Its dual high-speed disable pins (DISABLEA/DISABLEB), 10-pin µMAX package, and rail-to-rail input common-mode range make it suitable for multiplexed high-speed data acquisition systems in communications and ultrasound equipment.
For engineers reviewing the MAX4288ESD datasheet, MAX4288ESD pinout, MAX4288ESD application, or MAX4288ESD equivalent, key selection criteria include its dual-channel 250MHz bandwidth at unity gain, 40ns enable / 50ns disable timing, ±106mA/±77mA output drive capability, and validated performance driving SAR and pipeline ADC inputs under dynamic load conditions.
Technical Context
The MAX4288ESD is a voltage-feedback op amp with internal unity-gain compensation, supporting stable operation at AV = +1V/V. It features two independent high-impedance disable paths-each with dedicated active-low control (DISABLEA, DISABLEB)-enabling selective channel shutdown without affecting the other amplifier. Its input stage extends to VEE (ground in single-supply mode), and its output drives ±106mA sink / ±77mA source into low-impedance loads.
Designed specifically for ADC buffering, the device achieves 6ns settling time to 0.1%, 2pF input capacitance, and 0.5Ω output impedance in active mode. When disabled, output impedance rises to ~35kΩ with leakage <±3µA, enabling clean analog signal multiplexing without crosstalk degradation up to 100MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| -3dB Bandwidth | 250MHz at AV = +1V/V - supports wideband baseband and IF sampling up to Nyquist frequencies near 125MHz. |
| Slew Rate | 350V/µs - enables full-scale step response within nanoseconds for high-resolution, high-speed ADCs. |
| SFDR | 88dBc at fC = 5MHz, VOUT = 1Vp-p - meets ENOB ≥14.3 bits for 14-bit+ ADC drivers in instrumentation. |
| Output Drive | −106mA / +77mA - directly drives low-Z ADC inputs (e.g., 50Ω–200Ω dynamic loads) without external buffers. |
| Enable/Disable Time | 40ns enable / 50ns disable - allows sub-100ns channel switching in time-interleaved or multiplexed acquisition systems. |
| Input Common-Mode Range | VEE to VCC − 1.25V - accommodates ground-referenced sensors and single-supply signal chains without level-shifting. |
| Quiescent Current | 24mA per amplifier (typ.) at VCC = 5V - balances speed and power for portable or thermally constrained designs. |
Pinout & Package
MAX4288ESD is housed in a 10-pin µMAX package (3.0mm × 3.0mm, 0.8mm height, exposed pad), optimized for high-density PCB layouts and thermal performance in space-constrained applications.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCC | Positive supply input (2.85V to 6.5V); requires local 0.1nF + 0.1µF bypassing. |
| 2 | OUTB | Amplifier B output; capable of ±106mA/±77mA drive; high-Z when DISABLEB = low. |
| 3 | INB− | Inverting input of Amplifier B; 2pF input capacitance; matched to INB+ for precision differential drive. |
| 4 | INB+ | Noninverting input of Amplifier B; rail-to-rail common-mode range (VEE to VCC − 1.25V). |
| 5 | VEE | Negative supply or ground; forms return path for bias current and output current. |
| 6 | INA+ | Noninverting input of Amplifier A; electrically identical to INB+, enabling matched dual-channel buffering. |
| 7 | INA− | Inverting input of Amplifier A; symmetrical layout pairing with INB− minimizes inter-channel crosstalk. |
| 8 | OUTA | Amplifier A output; independently controllable via DISABLEA; maintains 0.5Ω output impedance when active. |
| 9 | DISABLEB | Active-low disable for Amplifier B; logic threshold VIL ≤ VCC − 2V, VIH ≥ VCC − 1V. |
| 10 | DISABLEA | Active-low disable for Amplifier A; fully decoupled from DISABLEB for asymmetric channel control. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-speed disable | Separate DISABLEA/DISABLEB pins enable per-channel power gating with 40ns/50ns timing-critical for TDM or interleaved ADC architectures. |
| Unity-gain stable architecture | Internally compensated for AV = +1V/V; eliminates need for external compensation components in most ADC buffer configurations. |
| High-output-current drive | −106mA sink / +77mA source capability ensures full swing into 50Ω–200Ω ADC input impedances without gain error or distortion. |
| Low distortion at RF frequencies | 88dBc SFDR at 5MHz and 85dBc at 10MHz supports high-dynamic-range digitization in LTE, DOCSIS, and medical imaging front-ends. |
| Rail-to-rail input common-mode range | Operates with inputs down to VEE (0V in single supply), simplifying interface to ground-referenced transducers and sensor outputs. |
Applications
| Communications Baseband Processing | Ultrasound Beamforming |
|---|---|
|
Use Scenario: Driving dual-channel 125MSPS pipeline ADCs in broadband wireless transceivers with I/Q demodulation paths. IC Role / Device Role / Timing Role: ADC input buffer providing matched gain, phase, and settling across both channels to preserve image rejection and EVM. Use Value: 250MHz bandwidth and 6ns settling ensure accurate capture of 60MHz IF signals; dual disable enables rapid channel blanking during AGC transitions. |
Use Scenario: Conditioning analog echo signals from phased-array transducer elements before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-noise, high-drive buffer placed immediately after LNA to maintain SNR while driving multiplexed ADC inputs. Use Value: 10.0nV/√Hz input voltage noise and 88dBc SFDR preserve weak echo fidelity; 10-pin µMAX footprint fits tight probe PCB real estate. |
| High-Speed Data Acquisition Systems | Automated Test Equipment (ATE) |
|
Use Scenario: Multiplexed front-end for 16-channel, 100MSPS digitizers used in oscilloscope and spectrum analyzer modules. IC Role / Device Role / Timing Role: Dual-channel buffer with independent disable control enabling sequential channel sampling without cross-talk or settling delay penalties. Use Value: 35kΩ disabled output impedance and <2pF output capacitance minimize channel-to-channel feedthrough (<−85dBc at 100MHz). |
Use Scenario: Precision stimulus conditioning in high-throughput semiconductor test handlers requiring fast channel switching and low THD. IC Role / Device Role / Timing Role: Unity-gain buffer isolating DAC outputs from reactive DUT loads while maintaining flat frequency response to 200MHz. Use Value: 0.1dB gain flatness to 75MHz and 2.2ns rise time support accurate pulse fidelity for digital pattern generation and jitter testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4388ESD | Same 10-pin µMAX package and pinout, but gain-stable only at AV ≥ +5V/V; 150MHz bandwidth; no unity-gain stability. | Requires minimum +5V/V closed-loop gain; unsuitable for direct ADC buffering where unity gain is needed for signal integrity. | Select MAX4388ESD only when fixed high-gain signal conditioning precedes the ADC; not a drop-in replacement for MAX4288ESD. |
| THS4561IRGET | Single-supply, rail-to-rail output; 1.8GHz GBW; but only 120mA output drive and no integrated disable function. | Lacks dual-channel disable and exhibits higher 1/f noise; requires external enable circuitry for multiplexing. | Prefer THS4561IRGET for ultra-wideband (>500MHz) single-ended-to-differential conversion, not for low-latency multiplexed ADC buffering. |
Compared with MAX4388ESD and THS4561IRGET, the MAX4288ESD uniquely combines dual-channel unity-gain stability, integrated per-amplifier disable, and 250MHz bandwidth in a 10-pin µMAX package-making it the only option that satisfies simultaneous requirements for high-fidelity, low-latency, and space-efficient ADC front-end buffering.
Availability
MAX4288ESD is available at Aetrix Electronics and suitable for high-speed data acquisition, ultrasound imaging, and communications baseband processing requiring stable component supply, consistent parametric performance across temperature, and long-term production continuity.
Supply support for MAX4288ESD 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 demanding signal-chain applications.
The MAX4285–MAX4288 family was designed specifically as high-speed, low-distortion ADC buffer amplifiers-targeting instrumentation, medical imaging, and broadband communications where dynamic performance, power efficiency, and integration density are critical.
FAQ
What is the maximum recommended supply voltage for MAX4288ESD?
The absolute maximum supply voltage (VCC − VEE) for MAX4288ESD is +7.5V. The recommended operating range is +2.85V to +6.5V for single-supply use. Exceeding +6.5V risks parametric shift and reduced reliability; operation at +6.5V is validated across −40°C to +85°C with full specification compliance. MAX4288ESD must never be operated with VCC > VEE + 7.5V.
Does MAX4288ESD support true rail-to-rail output swing?
No, MAX4288ESD does not provide rail-to-rail output swing. Its linear output voltage range is specified as (VEE + 0.4V) to (VCC − 0.4V) under load. At VCC = 5V and VEE = 0V, this yields a usable swing of 0.4V to 4.6V - sufficient for driving most modern ADC inputs but requiring headroom consideration in 0–5V full-scale designs. MAX4288ESD output clips outside this range, degrading gain and phase margin.
Can MAX4288ESD drive a 50Ω transmission line directly?
Yes, MAX4288ESD can drive a 50Ω load directly: its output delivers −106mA sink and +77mA source current, supporting full-scale 2Vpp into 50Ω (40mA peak). However, for optimal stability and minimal ringing, Maxim recommends adding a 20Ω–30Ω isolation resistor in series with the output-especially when driving capacitive or unterminated lines-as documented in the Applications Information section of the MAX4288ESD datasheet.
What is the typical input offset voltage matching between channels in MAX4288ESD?
The typical input offset voltage matching (∆VOS) between Amplifier A and Amplifier B in MAX4288ESD is ±0.2mV (max). This tight matching ensures minimal gain and phase mismatch in dual-channel applications such as I/Q signal paths or differential ADC driving, directly contributing to >70dB image rejection in communication receivers. Matching is characterized over −40°C to +85°C and is process-trimmed during wafer sort.
Is the 10-pin µMAX package of MAX4288ESD RoHS-compliant and lead-free?
Yes, the MAX4288ESD in the 10-pin µMAX package (package code EUB) is RoHS-compliant and lead-free. Maxim's µMAX packages use matte-tin plating over copper leadframes and meet JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements. The device carries the "E" grade suffix indicating −40°C to +85°C operation and full compliance with EU RoHS Directive 2011/65/EU and China RoHS II.
MAX4288ESD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Buffer, Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 385V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 250 MHz
- Current - Input Bias:
- 13 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 23mA (x2 Channels)
- Current - Output / Channel:
- 106 mA
- Voltage - Supply Span (Min):
- 2.85 V
- Voltage - Supply Span (Max):
- 6.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4288ESD FAQ
1.How can I place an order for MAX4288ESD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4288ESD 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 MAX4288ESD reliable?
The price and inventory of MAX4288ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4288ESD is usually 5 days.
3.What payment methods are accepted for MAX4288ESD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4288ESD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4288ESD?
MAX4288ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4288ESD 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 MAX4288ESD?
For technical support, including MAX4288ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4288ESD requirements.
6.How does Aetrix verify that MAX4288ESD is sourced from the original manufacturer or authorized distributors?
All MAX4288ESD 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 MAX4288ESD meets industry standards.
7.What is the process for return or replacement of MAX4288ESD?
All MAX4288ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4288ESD, 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 MAX4288ESD part is unused and in its original packaging.
Return procedure for MAX4288ESD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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