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Analog Devices Inc./Maxim Integrated MAX4252ESA+T
- Part No.:
- MAX4252ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4252ESA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,095
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Product details
Overview
The MAX4252ESA+T from Analog Devices is a dual, single-supply, rail-to-rail output operational amplifier optimized for low-noise (7.9nV/√Hz at 30kHz), low-distortion (0.0002% THD+N at 1kHz), and ultra-low quiescent current (400µA per amplifier) operation from 2.4V to 5.5V. It features unity-gain stability, 3MHz gain-bandwidth product, ±5mA output drive, and is specified for -40°C to +85°C operation - ideal for portable instrumentation and precision ADC buffering.
For engineers reviewing the MAX4252ESA+T datasheet, MAX4252ESA+T pinout, MAX4252ESA+T application, or MAX4252ESA+T equivalent, key selection criteria include its rail-to-rail output swing within 8mV of rails (10kΩ load), input common-mode range extending to ground, 400pF capacitive-load stability, and absence of shutdown functionality - distinguishing it from MAX4251/MAX4253/MAX4256 variants.
Technical Context
The MAX4252ESA+T belongs to the MAX4249–MAX4257 family of low-noise, low-distortion op amps designed for high-fidelity signal conditioning in space-constrained, battery-powered systems. Its internal compensation ensures unity-gain stability with a 3MHz GBW, enabling accurate amplification of DC-coupled and wideband AC signals without external compensation.
It employs a push-pull output stage delivering ±5mA while maintaining DC accuracy into 1kΩ loads, and features an input stage with 1pA bias current and 70µV offset voltage - supporting high-impedance sensor interfaces and precision gain stages where leakage and offset errors must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 3MHz - supports stable unity-gain operation up to ~300kHz closed-loop bandwidth with minimal phase margin degradation. |
| Input Voltage Noise Density | 7.9nV/√Hz at 30kHz - enables clean amplification of low-level signals in 16-bit ADC front-ends without degrading SNR. |
| THD+N | 0.0002% at 1kHz, 2VP-P, 1kΩ load - preserves signal integrity in audio and communications paths requiring ultra-low harmonic artifacts. |
| Quiescent Supply Current | 400µA per amplifier - allows dual-channel operation in sub-1mA total supply budget for extended battery life. |
| Rail-to-Rail Output Swing | Within 8mV of VDD/VSS with 10kΩ load - maximizes dynamic range in 3V or 5V single-supply systems without headroom loss. |
| Input Common-Mode Range | Extends to VSS (ground) - permits direct interfacing with ground-referenced sensors and DAC outputs without level-shifting. |
| Capacitive Load Drive | Stable with ≤400pF - eliminates need for isolation resistors when driving ADC input capacitance or long PCB traces. |
Pinout & Package
The MAX4252ESA+T is housed in an 8-pin SO (Small Outline) package with exposed pad (SOIC-8EP), measuring 4.9mm × 3.9mm × 1.75mm. Pin 1 is marked with a dot; the exposed pad is electrically connected to VSS and must be soldered to PCB ground for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Amplifier A output | Delivers rail-to-rail buffered signal; capable of ±5mA drive into 1kΩ with <8mV headroom. |
| 2 (IN−A) | Inverting input A | High-impedance node (1pA bias); requires matched trace impedance and guard ring for optimal CMRR. |
| 3 (IN+A) | Noninverting input A | DC-coupled to ground-sensing sources; common-mode range includes VSS for true single-supply operation. |
| 4 (VSS) | Negative supply / ground | Reference for all inputs and outputs; exposed pad must be connected to system ground plane. |
| 5 (VDD) | Positive supply | Accepts 2.4V–5.5V; requires local 0.1µF ceramic bypass capacitor placed within 2mm of pin. |
| 6 (IN−B) | Inverting input B | Independent channel input; no crosstalk specification provided - layout separation recommended. |
| 7 (IN+B) | Noninverting input B | Matches IN+A characteristics; supports dual-channel differential or independent signal paths. |
| 8 (OUTB) | Amplifier B output | Functionally identical to OUTA; enables dual-channel buffering without inter-channel coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC reference voltage range in 3V systems, improving effective resolution by up to 0.5 LSB. |
| 70µV input offset voltage | Reduces DC error in precision gain stages; contributes <0.0014% gain error at AV = 100 with 5V supply. |
| 1pA input bias current | Permits use with >10MΩ source impedances (e.g., piezoelectric sensors) without significant voltage drop or drift. |
| 3MHz unity-gain bandwidth | Supports settling of 12-bit steps in <1.5µs, meeting timing requirements for multiplexed sensor arrays sampling at 500ksps. |
| No shutdown pin | Eliminates control logic overhead and potential latch-up risk in always-on monitoring applications like medical ECG front-ends. |
Applications
| ADC Buffering | Portable Medical Sensors |
|---|---|
Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., MAX195) with 10kΩ input impedance and 10pF sampling capacitance. IC Role / Device Role / Timing Role: Precision voltage follower providing low-output-impedance, rail-to-rail signal conditioning with <0.0002% THD+N to preserve ENOB. Use Value: Maintains >94dB SNR across full input range by minimizing noise injection and distortion-induced harmonic folding. | Use Scenario: Amplifying low-amplitude bio-potential signals (e.g., ECG, EEG) from dry electrodes with high source impedance (>1MΩ). IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with ground-sensing inputs and rail-to-rail output for direct interface to low-voltage ADCs. Use Value: 1pA bias current prevents electrode polarization drift; 7.9nV/√Hz noise ensures ≥110dB input-referred dynamic range at 10Hz. |
| Digital Scale Signal Conditioning | Wireless Transceiver IF Amplification |
Use Scenario: Amplifying mV-level bridge outputs from strain gauges in battery-powered digital scales. IC Role / Device Role / Timing Role: Low-power, precision gain stage (AV = 100) with 400µA per channel to extend coin-cell battery life beyond 1 year. Use Value: 70µV offset and 0.3µV/°C drift ensure <0.05% full-scale error over -10°C to +50°C operating range. | Use Scenario: IF amplification stage in 2.4GHz ISM-band transceivers (e.g., MAX2837), driving mixer or filter inputs. IC Role / Device Role / Timing Role: Low-distortion, rail-to-rail buffer isolating sensitive analog sections from digital switching noise. Use Value: 0.0002% THD+N prevents spectral regrowth that would violate FCC spurious emission limits at adjacent channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, rail-to-rail, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4252EUA+ | Same die in 8-pin µMAX package (3mm × 3mm); 10°C lower max junction temperature rating (125°C vs. 150°C). | Preferred for ultra-dense PCB layouts where SOIC footprint is prohibitive; thermal performance limited in high-ambient environments. | Select MAX4252EUA+ only when board area savings outweigh thermal derating requirements. |
| OPA2333AIDR | Zero-drift architecture (0.02µV/°C offset drift); higher quiescent current (17µA per amp); 350kHz GBW. | Better for DC-critical applications (e.g., precision weigh scales) but unsuitable for >100kHz signal chains due to limited bandwidth. | Choose OPA2333AIDR when ultra-stable DC offset dominates over AC performance and bandwidth. |
Compared with MAX4252EUA+, the MAX4252ESA+T offers superior thermal robustness in convection-cooled industrial enclosures; compared with OPA2333AIDR, it delivers 8.5× higher bandwidth and 23× lower THD+N at 1kHz - making it optimal for mixed-signal data acquisition where both AC fidelity and DC accuracy matter.
Availability
The MAX4252ESA+T is available at Aetrix Electronics and suitable for portable medical devices, precision ADC front-ends, and wireless transceiver signal chains requiring stable component supply, RoHS-compliant packaging, and guaranteed -40°C to +85°C operation.
Supply support for MAX4252ESA+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX4249–MAX4257 product line was engineered specifically for battery-powered instrumentation demanding simultaneous low noise, low distortion, rail-to-rail operation, and sub-500µA per-channel quiescent current - targeting 16-bit data acquisition and portable sensor interfaces.
FAQ
What is the maximum capacitive load the MAX4252ESA+T can drive without oscillation?
The MAX4252ESA+T is stable driving capacitive loads up to 400pF without external compensation or isolation resistors. This capability is verified per the manufacturer's Electrical Characteristics table and Typical Operating Characteristics (Figure TOC12). Exceeding 400pF requires adding a series isolation resistor (e.g., 150Ω for 1000pF) between the output and load to maintain phase margin. The MAX4252ESA+T's ability to drive 400pF directly simplifies design in ADC buffer and filter driver applications.
Does the MAX4252ESA+T include a shutdown feature?
No, the MAX4252ESA+T does not include a shutdown feature. Unlike the MAX4251, MAX4253, or MAX4256 variants, the MAX4252ESA+T lacks a SHDN pin and operates continuously when powered. This is confirmed in the Pin/Bump Description table (page 9), Selector Guide (page 13), and Ordering Information (page 14), where "Shutdown Mode" is explicitly listed as "-" for MAX4252. Designers requiring power gating must implement external enable circuitry or select an alternative part with integrated shutdown.
What is the input common-mode voltage range of the MAX4252ESA+T?
The MAX4252ESA+T has an input common-mode voltage range extending from VSS (ground) to VDD − 1.1V, as specified in the Electrical Characteristics table (page 2). This ground-sensing capability allows direct connection to zero-referenced sensors and DAC outputs without level-shifting circuitry. At VDD = 5V, the usable input range is 0V to 3.9V; at VDD = 3V, it is 0V to 1.9V. This range is guaranteed over the full -40°C to +85°C temperature range and supports true single-supply operation in low-voltage systems.
Can the MAX4252ESA+T operate from a 2.4V supply?
Yes, the MAX4252ESA+T is fully specified to operate from a minimum supply voltage of 2.4V, as stated in the Absolute Maximum Ratings and Electrical Characteristics tables (pages 2–3). At 2.4V, it maintains rail-to-rail output swing (within 25mV of rails), 70µV typical offset voltage, and 400µA quiescent current per amplifier. Performance metrics such as GBW (3MHz) and THD+N (0.0002%) are characterized down to 2.4V, making the MAX4252ESA+T suitable for coin-cell and Li-ion battery-powered equipment where supply voltage sags below 3V.
What package type is used for the MAX4252ESA+T?
The MAX4252ESA+T uses an 8-pin Small Outline Integrated Circuit (SOIC) package with exposed pad (SOIC-8EP), outlined in Package Code S14+1 (page 15). Its dimensions are 4.9mm × 3.9mm × 1.75mm, with standard 1.27mm lead pitch. The "+T" suffix indicates tape-and-reel packaging for automated assembly. The exposed pad is internally connected to VSS and must be soldered to the PCB ground plane to meet thermal and electrical specifications - a requirement confirmed in the Pin/Bump Configurations section (page 14).
MAX4252ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Push-Pull, Rail-to-Rail
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 70 µV
- Current - Supply:
- 420µA (x2 Channels)
- Current - Output / Channel:
- 68 mA
- Voltage - Supply Span (Min):
- 2.4 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4252ESA+T FAQ
1.How can I place an order for MAX4252ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4252ESA+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 MAX4252ESA+T reliable?
The price and inventory of MAX4252ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4252ESA+T is usually 5 days.
3.What payment methods are accepted for MAX4252ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4252ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4252ESA+T?
MAX4252ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4252ESA+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 MAX4252ESA+T?
For technical support, including MAX4252ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4252ESA+T requirements.
6.How does Aetrix verify that MAX4252ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4252ESA+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 MAX4252ESA+T meets industry standards.
7.What is the process for return or replacement of MAX4252ESA+T?
All MAX4252ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4252ESA+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 MAX4252ESA+T part is unused and in its original packaging.
Return procedure for MAX4252ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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