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Analog Devices Inc./Maxim Integrated MAX4253ESD+T
- Part No.:
- MAX4253ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4253ESD+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,972
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Product details
Overview
MAX4253ESD+T from Analog Devices is a dual, low-noise, low-distortion, rail-to-rail output operational amplifier in a 14-pin SO package, operating from 2.4V to 5.5V single supply with 400µA quiescent current per amplifier, 0.0002% THD at 1kHz, and 7.9nV/√Hz input voltage-noise density - ideal for precision ADC buffering and portable instrumentation.
For engineers reviewing the MAX4253ESD+T datasheet, MAX4253ESD+T pinout, MAX4253ESD+T application, or MAX4253ESD+T equivalent, key selection criteria include its unity-gain unstable (AV ≥ 10V/V) architecture, shutdown capability (0.5µA), rail-to-rail swing within 8mV of rails, and guaranteed operation over –40°C to +85°C.
Technical Context
The MAX4253ESD+T is a decompensated dual op amp optimized for gains ≥ 10V/V, delivering 22MHz gain-bandwidth product and 2.1V/µs slew rate. Its input stage features ultra-low input bias current (1pA typ) and wide input common-mode range (to ground), enabling direct interfacing with high-impedance sensors.
It integrates independent shutdown inputs (SHDNA/SHDNB) per channel, placing outputs in high-impedance state while reducing total supply current to 1µA (0.5µA per amplifier). The device drives capacitive loads up to 400pF without oscillation and maintains stability with 1kΩ resistive loads while preserving DC accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.4V to 5.5V single supply - supports battery-powered systems down to two alkaline cells or Li-ion with LDO dropout margin. |
| Quiescent Current | 400µA per amplifier (normal mode); 0.5µA per amplifier (shutdown) - enables multi-day operation in always-on sensor nodes. |
| Gain-Bandwidth Product | 22MHz at AV ≥ 10V/V - provides sufficient loop gain for precision 16-bit ADC drivers at 10× gain with >1MHz signal bandwidth. |
| Input Voltage-Noise Density | 7.9nV/√Hz at 30kHz - ensures minimal added noise when conditioning low-level signals from strain gauges or piezoelectric transducers. |
| THD+N | 0.0002% at 1kHz, 2VP-P, RL = 1kΩ - preserves signal fidelity in audio and communications front-ends requiring <–115dBc harmonic suppression. |
| Output Swing | Within 8mV of rails (10kΩ load) - maximizes dynamic range in low-voltage 3.3V or 2.5V data acquisition systems. |
| Input Bias Current | 1pA typical at +25°C - prevents significant offset drift when used with MΩ-range feedback or sensor source impedances. |
Pinout & Package
MAX4253ESD+T is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package with standard 1.27mm pitch, compatible with automated PCB assembly and IPC-7351B footprint S14+1. Thermal performance supports continuous operation at TA ≤ +85°C with 471mW derated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 13 | OUTA / OUTB | Dual independent amplifier outputs - each capable of rail-to-rail swing and 5mA drive; high-impedance in shutdown. |
| 2, 6 | INA− / INB− | Inverting inputs - matched input capacitance (11pF) requires feed-forward compensation (CZ) for stable AV = 10V/V operation. |
| 3, 5 | INA+ / INB+ | Noninverting inputs - common-mode range includes ground, enabling single-supply transducer interfacing without level-shifting. |
| 4 | VSS | Negative supply terminal - connect directly to system ground in single-supply configurations. |
| 7, 14 | VDD | Positive supply input - requires local 0.1µF ceramic bypass capacitor for PSRR optimization and noise immunity. |
| 8, 10 | SHDNA / SHDNB | Independent shutdown controls - logic-high (≥ 0.8×VDD) enables amplifier; logic-low (≤ 0.2×VDD) disables output and reduces IQ to 0.5µA. |
| 9, 11, 12 | N.C. | No internal connection - left unconnected on PCB; no routing or thermal relief required. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives to within 8mV of VDD/VSS under 10kΩ load - preserves full-scale resolution in low-voltage SAR ADC reference buffers. |
| Low-power shutdown mode | Reduces per-amplifier supply current to 0.5µA while placing outputs in high-Z - enables dynamic channel gating in multi-sensor systems. |
| 400pF capacitive-load stability | Operates without external isolation resistor up to 400pF - simplifies layout for LCD bias, DAC output filtering, or long-trace analog routing. |
| Ultra-low input current noise | 0.5fA/√Hz - minimizes Johnson noise contribution when amplifying high-impedance (>100MΩ) sources like pH electrodes or photodiodes. |
| Guaranteed phase reversal immunity | No output polarity inversion during input overdrive - eliminates latch-up risk in open-loop comparator or protection circuit applications. |
Applications
| ADC Buffering | Portable Instrumentation |
|---|---|
Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., MAX195) with ±10mV differential sensor output referenced to midsupply. IC Role / Device Role / Timing Role: Precision unity-gain buffer isolating high-impedance source from ADC sampling capacitor kickback. Use Value: 7.9nV/√Hz noise and 0.0002% THD ensure ENOB ≥ 15.2 bits at 100ksps without calibration. | Use Scenario: Signal conditioning in handheld medical devices measuring microvolt-level ECG or EEG signals. IC Role / Device Role / Timing Role: Low-noise, low-power preamplifier stage with shutdown control synchronized to measurement duty cycle. Use Value: 400µA/quiescent current and rail-to-rail output enable >72-hour battery life in AA-powered units. |
| Strain Gauge Interface | PA Control Loop |
Use Scenario: Amplifying Wheatstone bridge output (2mV/V) from load cell in digital scale with 24-bit ΣΔ ADC. IC Role / Device Role / Timing Role: Instrumentation-grade gain stage (AV = 100V/V) with matched input impedance and low TCVOS (0.3µV/°C). Use Value: 1pA input bias current prevents bridge imbalance error; 70µV VOS enables <0.01% full-scale linearity. | Use Scenario: Closed-loop feedback amplifier in RF power amplifier bias control, monitoring drain current via shunt resistor. IC Role / Device Role / Timing Role: High-speed, low-drift error amplifier comparing sensed current to DAC-set reference. Use Value: 22MHz GBW and 2.1V/µs slew rate support 500kHz control loop bandwidth with <10ns step response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual, low-noise, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2376AIDR | Unity-gain stable (3MHz GBW), lower noise (4.5nV/√Hz), no shutdown, 5.5V max supply | Better for unity-gain sensor interfaces; unsuitable for AV ≥ 10V/V high-bandwidth designs | Select when gain ≤ 1V/V and shutdown is not required |
| ADA4807-2ARMZ | Unity-gain stable (180MHz GBW), higher supply current (1.2mA), no shutdown, rail-to-rail I/O | Higher speed/power trade-off; better for video or fast-settling multiplexed DAQ | Select when >10MHz bandwidth needed and power budget allows 3× higher IQ |
Compared with OPA2376AIDR and ADA4807-2ARMZ, the MAX4253ESD+T uniquely balances ultra-low distortion (0.0002% THD), shutdown capability, and 22MHz GBW at 400µA - making it optimal for battery-powered, high-fidelity, gain ≥ 10V/V signal chains where power and fidelity are co-constrained.
Availability
MAX4253ESD+T is available at Aetrix Electronics and suitable for portable instrumentation, precision ADC buffering, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4253ESD+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.
The MAX4249–MAX4257 family was designed specifically for low-power, low-noise, rail-to-rail signal conditioning in portable and precision measurement systems - emphasizing THD, noise floor, and shutdown efficiency over raw speed.
FAQ
What is the minimum stable gain for MAX4253ESD+T and why does it matter?
The MAX4253ESD+T is decompensated and requires a minimum closed-loop gain of 10V/V for stable operation. This design enables its 22MHz gain-bandwidth product and 2.1V/µs slew rate while minimizing power consumption. Using it at lower gains risks oscillation or excessive peaking; for unity-gain applications, select the MAX4250–MAX4254 variants instead.
Does MAX253ESD+T support true ground-referenced input operation?
Yes, the MAX4253ESD+T features an input common-mode voltage range that extends to VSS (ground) and beyond - down to –0.2V - with guaranteed phase reversal immunity. This allows direct connection of transducers or sensors whose outputs swing to ground, eliminating need for level-shifting circuitry in single-supply systems.
How does the shutdown function work on MAX4253ESD+T and what is its timing behavior?
MAX4253ESD+T has two independent shutdown pins (SHDNA and SHDNB). Pulling either low (≤ 0.2×VDD) disables its respective amplifier, reducing supply current to 0.5µA and placing the output in high-impedance state. Enable delay is 8µs (MAX4251/MAX4253), and shutdown delay is 0.8µs - enabling rapid channel power cycling in time-multiplexed sensor arrays.
Can MAX4253ESD+T drive heavy capacitive loads, and what is the maximum stable value?
Yes, the MAX4253ESD+T is specified to drive capacitive loads up to 400pF without external compensation or isolation resistor. Stability is maintained across all gains ≥ 10V/V. For loads exceeding 400pF, a series isolation resistor (e.g., 150Ω for 1000pF) must be added between output and load to preserve phase margin and prevent peaking.
What package and pinout does MAX4253ESD+T use, and is it RoHS-compliant?
MAX4253ESD+T uses a 14-pin SOIC package (S14+1 outline) with lead(Pb)-free/RoHS-compliant finish indicated by the '+' suffix. Pinout matches industry-standard dual op amp layout: pins 1/13 = OUTA/OUTB, pins 2/6 = IN−, pins 3/5 = IN+, pin 4 = VSS, pins 7/14 = VDD, pins 8/10 = SHDNA/SHDNB, and pins 9/11/12 = N.C.
MAX4253ESD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 14-SOIC
MAX4253ESD+T FAQ
1.How can I place an order for MAX4253ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4253ESD+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 MAX4253ESD+T reliable?
The price and inventory of MAX4253ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4253ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4253ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4253ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4253ESD+T?
MAX4253ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4253ESD+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 MAX4253ESD+T?
For technical support, including MAX4253ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4253ESD+T requirements.
6.How does Aetrix verify that MAX4253ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4253ESD+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 MAX4253ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4253ESD+T?
All MAX4253ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4253ESD+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 MAX4253ESD+T part is unused and in its original packaging.
Return procedure for MAX4253ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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