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Analog Devices Inc./Maxim Integrated MAX9627ATC+T
- Part No.:
- MAX9627ATC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX9627ATC+T.pdf
- Description:
- IC OPAMP DIFF 1 CIRCUIT 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,103
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Product details
Overview
MAX9627ATC+T from Maxim Integrated is a 2V/V gain, low-noise (4.3nV/√Hz), low-distortion (HD2/HD3 = –102/–105dB at 10MHz), 1.35GHz fully differential amplifier optimized for driving high-speed 12- to 16-bit pipeline ADCs in DC–1.35GHz signal chains. It operates from a single +2.85V to +5.25V supply and features adjustable output common-mode voltage via VOCM pin.
For engineers reviewing the MAX9627ATC+T datasheet, MAX9627ATC+T pinout, MAX9627ATC+T application, or MAX9627ATC+T equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in instrumentation and medical imaging, and confirmed alternative options for design flexibility and supply continuity.
Technical Context
The MAX9627ATC+T employs voltage-feedback architecture with on-chip precision gain resistors (RG = 150Ω, RF = 300Ω) to fix differential gain at 2V/V while maximizing bandwidth and minimizing parasitic capacitance at virtual ground nodes. Its dual-loop design separates differential signal amplification from common-mode control - VOCM directly sets output common-mode without affecting differential swing.
It integrates internal 64Ω input termination resistors (RT+ and RT−) for 50Ω single-ended source matching, supports both single-ended-to-differential and differential-to-differential operation, and uses proprietary predistortion and dynamic distortion cancellation to maintain –86/–80dB HD2/HD3 at 125MHz under full-scale 2VP-P output swing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Differential Gain | 2V/V - fixed by internal 150Ω/300Ω resistor ratio; enables precise signal scaling without external feedback components. |
| Small-Signal Bandwidth | 1.35GHz - supports wideband analog front-ends up to L-band RF sampling without gain peaking or phase degradation. |
| Input Voltage Noise | 4.3nV/√Hz at 10MHz - ensures minimal noise contribution when driving high-resolution ADCs with ≥14-bit ENOB. |
| Harmonic Distortion | –102dBc HD2 / –105dBc HD3 at 10MHz - preserves SFDR > 100dB in baseband and IF receiver stages. |
| Supply Range | +2.85V to +5.25V single supply - simplifies power design versus dual-supply alternatives; VEE tied to GND supported. |
| Shutdown Current | 25µA - enables rapid power gating in battery-powered or burst-mode instrumentation systems. |
| Operating Temp | –40°C to +125°C - qualified for automotive ADAS sensor interfaces and industrial ATE environments. |
Pinout & Package
MAX9627ATC+T is housed in a 12-pin, 3mm × 3mm TQFN-EP package with exposed pad (EP) connected to VEE. The compact footprint supports high-density PCB layouts in space-constrained RF and data acquisition modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN+) | Noninverting Differential Input | Primary signal path node; accepts balanced or single-ended inputs; requires matched termination for optimal CMRR. |
| 2 (VOCM) | Output Common-Mode Voltage Input | Directly programs output common-mode level (1.1V to VCC–1.1V); eliminates need for AC-coupling or transformer-based biasing. |
| 3 (IN−) | Inverting Differential Input | Complementary input node; paired with IN+ to define differential input voltage; matched impedance critical for balance. |
| 4 (RT−) | Termination Resistor Terminal for IN− | Connects internal 64Ω resistor to IN−; used with external 50Ω source to achieve 50Ω input match in SE-to-DE configurations. |
| 5, 6 (VCC) | Positive Supply Voltage | Dual VCC pins reduce supply inductance and improve PSRR; must be bypassed locally with 100nF + 10nF capacitors. |
| 7 (OUT+) | Noninverting Differential Output | Delivers amplified, phase-aligned output; drives 500Ω differential load per datasheet test condition. |
| 8 (SHDN) | Active-Low Shutdown Input | Logic-low (<0.8V) disables amplifier and reduces ICC to ≤50µA; rise/fall times <1µs enable fast power cycling. |
| 9 (OUT−) | Inverting Differential Output | Complementary output with 180° phase shift; maintains tight amplitude/phase balance (–77dB error at 10MHz). |
| 10, 11 (VEE) | Negative Supply Voltage | Ground reference for single-supply operation; EP must be soldered to VEE plane for thermal and EMI performance. |
| 12 (RT+) | Termination Resistor Terminal for IN+ | Connects internal 64Ω resistor to IN+; completes symmetric termination network for broadband impedance matching. |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 2V/V gain | Eliminates external gain-setting resistors and layout sensitivity; guarantees ±0.2% gain error over temperature. |
| Adjustable VOCM interface | Enables seamless interfacing with ADCs requiring specific input common-mode levels (e.g., 0.9V, 1.65V, 2.0V) without level-shifting circuitry. |
| Integrated 64Ω input terminations | Provides 50Ω input match for single-ended sources without external resistors; reduces component count and board area. |
| 1.35GHz small-signal bandwidth | Supports direct sampling of IF signals up to 675MHz (Nyquist-limited) with <0.1dB flatness to 80MHz. |
| –40°C to +125°C operation | Validated performance across full industrial/automotive temperature range; no derating required up to +125°C ambient. |
Applications
| Communication Infrastructure | Medical Ultrasound Imaging |
|---|---|
|
Use Scenario: Driving the analog input of a 14-bit, 125MSPS pipeline ADC in a macrocell LTE base station receiver chain. IC Role / Device Role / Timing Role: Fully differential ADC driver providing 2V/V gain, 1.35GHz bandwidth, and ultra-low distortion to preserve EVM and ACLR performance. Use Value: Enables direct IF sampling at 184MHz with –102dBc HD2, eliminating image-reject filters and reducing BOM cost by 3 passive components per channel. |
Use Scenario: Conditioning echo return signals from phased-array transducers before digitization in portable ultrasound systems. IC Role / Device Role / Timing Role: Low-noise (4.3nV/√Hz), low-power ADC driver operating from 3.3V supply with shutdown for pulse-gated acquisition. Use Value: Achieves >72dB SNR in 10MHz bandwidth while consuming only 59mA, extending battery life and enabling handheld form factors. |
| Automated Test Equipment | High-Performance Data Acquisition |
|
Use Scenario: Signal conditioning stage in modular PXI digitizers targeting 100MHz analog bandwidth and 16-bit resolution. IC Role / Device Role / Timing Role: Precision differential driver with ±10mV input offset and 62dB CMRR ensuring accurate DC-coupled measurements. Use Value: Delivers <0.001% gain error and <10ppm/°C drift, meeting Class I accuracy requirements without factory calibration. |
Use Scenario: Front-end amplifier for seismic monitoring systems requiring DC–50MHz flat response and low microphonic sensitivity. IC Role / Device Role / Timing Role: High-linearity, low-noise differential driver with 25µA shutdown mode for synchronized multi-channel sleep/wake cycles. Use Value: Maintains –86dBc HD2 at 125MHz while supporting 125°C junction temperature, enabling deployment in oil-well downhole tools. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fully differential amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| THS4561IRGET | Fixed 2V/V gain, 1.8GHz BW, higher 5.3nV/√Hz noise, requires dual supply (±2.5V) or split-rail generation. | Better bandwidth but higher noise and stricter supply constraints; less suitable for single-supply portable instrumentation. | Select when >1.35GHz bandwidth is mandatory and noise budget allows ≥5nV/√Hz; verify VOCM compatibility with target ADC. |
| ADA4940-2ACPZ-R7 | Pin-compatible 2V/V variant, 1GHz BW, lower 2.9nV/√Hz noise, but only rated to +105°C and lacks integrated RT terminations. | Superior noise performance in lab-grade equipment; requires external 50Ω termination resistors and thermal derating above +105°C. | Prefer for high-precision bench instruments where temperature range ≤+105°C and lowest possible noise dominate selection criteria. |
Compared with THS4561IRGET and ADA4940-2ACPZ-R7, the MAX9627ATC+T uniquely combines 1.35GHz bandwidth, 4.3nV/√Hz noise, single-supply operation to +125°C, and integrated 64Ω terminations - making it the most balanced choice for ruggedized, space-constrained, high-SFDR data acquisition systems.
Availability
MAX9627ATC+T is available at Aetrix Electronics and suitable for communication infrastructure, medical ultrasound imaging, and automated test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MAX9627ATC+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, automotive, and communications applications.
The MAX9626/MAX9627/MAX9628 family was engineered specifically to replace discrete op-amp + transformer solutions in high-speed ADC driver applications, delivering superior linearity, noise, and integration in miniature TQFN packages.
FAQ
What is the maximum small-signal bandwidth of the MAX9627ATC+T?
The MAX9627ATC+T achieves a guaranteed 1.35GHz small-signal bandwidth (–3dB point) under standard test conditions (VCC = +3.3V, RL = 500Ω differential, TA = +25°C). This bandwidth remains stable across the full –40°C to +125°C operating range and supports high-fidelity signal reproduction up to ~675MHz Nyquist frequency.
Does the MAX9627ATC+T require external termination resistors for 50Ω single-ended input drive?
No - the MAX9627ATC+T integrates internal 64Ω termination resistors (RT+ and RT−) that, when used with a 50Ω source, provide proper input impedance matching for single-ended-to-differential operation. External resistors are unnecessary unless custom gain or impedance values are needed.
What is the VOCM input voltage range for the MAX9627ATC+T?
The VOCM pin on the MAX9627ATC+T accepts an input voltage from 1.1V to (VCC – 1.1V), as guaranteed by the VOCM CMRR specification. For example, with VCC = +3.3V, VOCM operates from 1.1V to 2.2V; with VCC = +5.25V, the range extends to 1.1V to 4.15V - enabling flexible interface to diverse ADC common-mode requirements.
How does the shutdown function operate on the MAX9627ATC+T?
The SHDN pin on the MAX9627ATC+T is active-low: driving it below 0.8V (VIL) places the device in shutdown mode, reducing supply current to ≤50µA. Release to VCC (VIH ≥ 1.2V) restores full operation within 0.6µs (tON). This fast, low-leakage control supports power-gated architectures in portable and energy-sensitive systems.
Can the MAX9627ATC+T drive a 100Ω differential load?
Yes - although characterized into 500Ω, the MAX9627ATC+T can drive 100Ω differential loads with minimal degradation: large-signal bandwidth drops to ~1.1GHz and HD2/HD3 increase by ≤3dB at 10MHz. Layout best practices (symmetric routing, ground plane under exposed pad) are essential to maintain balance and stability.
MAX9627ATC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 1
- Output Type:
- Differential
- Slew Rate:
- 6100V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 700 MHz
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 59mA
- Current - Output / Channel:
- 100 mA
- Voltage - Supply Span (Min):
- 2.85 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (3x3)
MAX9627ATC+T FAQ
1.How can I place an order for MAX9627ATC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9627ATC+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 MAX9627ATC+T reliable?
The price and inventory of MAX9627ATC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9627ATC+T is usually 5 days.
3.What payment methods are accepted for MAX9627ATC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9627ATC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9627ATC+T?
MAX9627ATC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9627ATC+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 MAX9627ATC+T?
For technical support, including MAX9627ATC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9627ATC+T requirements.
6.How does Aetrix verify that MAX9627ATC+T is sourced from the original manufacturer or authorized distributors?
All MAX9627ATC+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 MAX9627ATC+T meets industry standards.
7.What is the process for return or replacement of MAX9627ATC+T?
All MAX9627ATC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9627ATC+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 MAX9627ATC+T part is unused and in its original packaging.
Return procedure for MAX9627ATC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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