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Analog Devices Inc./Maxim Integrated MAX4275AGESA+T
- Part No.:
- MAX4275AGESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4275AGESA+T.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,326
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Product details
Overview
MAX4275AGESA+T from Maxim Integrated is a single-channel, rail-to-rail output, fixed-gain operational amplifier with internal VCC/2 biasing at the noninverting input, 0.1% gain accuracy, ±17V input fault protection, and 300µA supply current. It operates from +2.5V to +5.5V and delivers up to 23MHz GBW (at AV = +25V/V to +101V/V), targeting precision signal conditioning in portable instrumentation and low-side current-sense applications.
For engineers reviewing the MAX4275AGESA+T datasheet, MAX4275AGESA+T pinout, MAX4275AGESA+T application, or MAX4275AGESA+T equivalent, this page provides verified technical context, exact pin functions, real-world use cases, and validated alternative options for single-supply, fixed-gain amplification where internal biasing and high-voltage fault tolerance are required.
Technical Context
The MAX4275AGESA+T integrates a decompensated rail-to-rail op-amp core with laser-trimmed on-chip feedback resistors (RF/RG) to deliver factory-set noninverting gains from +1.25V/V to +101V/V. Its internal 150kΩ/150kΩ resistor divider establishes a precise VCC/2 bias at IN+, eliminating external bias components in AC-coupled single-supply designs.
Input fault protection uses back-to-back SCR structures and diode clamps with current-limiting resistors (5kΩ at IN+, RG at IN−), enabling ±17V input overvoltage tolerance without phase reversal or excessive current draw. The device is stable driving capacitive loads up to 470pF without isolation resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports battery-powered and low-voltage industrial systems without level-shifting. |
| Gain Accuracy | ±0.1% - ensures consistent signal scaling across production units, reducing calibration overhead. |
| GBW Product | Up to 23MHz (at AV = +25V/V to +101V/V) - enables high-speed closed-loop response in sensor front-ends. |
| Input Fault Tolerance | ±17V at either input - protects against transient overvoltage in automotive or industrial I/O interfaces. |
| Capacitive Load Stability | Stable with ≤470pF - drives ADC input filters or long traces directly without added series resistance. |
| Supply Current | 300µA per amplifier - extends battery life in portable instruments and smart-card readers. |
| Output Swing | Rail-to-rail into 1kΩ - maximizes dynamic range in single-supply data acquisition systems. |
Pinout & Package
SOT23-5 package: compact 5-pin surface-mount outline with exposed pad for thermal performance; footprint compatible with standard SOT23 pick-and-place equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | Connected internally to RG; voltage must remain within supply rails to avoid distortion. |
| 2 (OUT) | Amplifier output | Rail-to-rail capable; drives 1kΩ load while maintaining DC accuracy and stability up to 470pF. |
| 3 (VCC) | Positive supply | Accepts +2.5V to +5.5V; requires 0.1µF bypass capacitor to ground for noise suppression. |
| 4 (VEE) | Negative supply / ground | Referenced to system ground in single-supply operation; forms return path for bias and output current. |
| 5 (IN+) | Noninverting input | Internally biased to VCC/2 via 150kΩ/150kΩ divider; eliminates external bias network for AC-coupled inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Internal VCC/2 biasing | Removes need for external resistor divider, simplifying layout and improving temperature stability of bias point. |
| Laser-trimmed gain resistors | 0.1% RF/RG matching enables high-accuracy fixed gain without manual trimming or calibration. |
| Rail-to-rail output stage | Delivers full supply swing into 1kΩ, maximizing SNR in 12-bit+ ADC interfacing applications. |
| ±17V input fault protection | Prevents latch-up or damage during hot-plug, ESD events, or power-rail transients in field-deployed systems. |
| 470pF capacitive load drive | Eliminates isolation resistor in anti-alias filter designs, preserving signal integrity and phase linearity. |
Applications
| Portable Instrumentation | Smart-Card Readers |
|---|---|
|
Use Scenario: Amplifying low-level analog sensor outputs (e.g., thermocouple, strain gauge) in handheld multimeters or environmental monitors. IC Role / Device Role / Timing Role: Fixed-gain signal conditioning stage with internal VCC/2 bias enabling rail-to-rail output swing from a single 3.3V battery supply. Use Value: Eliminates external bias resistors and reduces PCB area by >30% versus discrete op-amp + resistor solutions. |
Use Scenario: Conditioning contactless card reader signals (13.56MHz carrier envelope detection) before ADC sampling. IC Role / Device Role / Timing Role: Noninverting amplifier with +5V/V gain and ±17V input tolerance protecting against ESD-induced transients on antenna lines. Use Value: Maintains signal fidelity under ESD stress while consuming only 300µA-critical for battery-operated POS terminals. |
| Low-Side Current-Sense | Infrared Remote Receivers |
|
Use Scenario: Amplifying mV-level shunt voltage in motor control or power supply monitoring circuits. IC Role / Device Role / Timing Role: Precision noninverting amplifier with 0.1% gain accuracy and rail-to-rail output driving microcontroller ADC reference range. Use Value: Enables <1% current measurement error across temperature without software calibration. |
Use Scenario: Amplifying weak IR photodiode signals in TV remotes or home automation receivers. IC Role / Device Role / Timing Role: Low-noise (90nV/√Hz), low-power amplifier with internal VCC/2 bias simplifying AC-coupled front-end design. Use Value: Reduces component count by two resistors and one capacitor while maintaining 100kHz bandwidth for pulse decoding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-gain amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4175EUK+T | SOT23-5, same VCC/2 bias architecture but rated for −40°C to +85°C (vs. −40°C to +125°C for MAX4275AGESA+T); 0.1% gain accuracy retained. | Targeted at commercial-temperature portable devices; lacks extended industrial temperature range. | Select MAX4175EUK+T for cost-sensitive consumer applications where 125°C operation is unnecessary. |
| AD8273ARZ | Dual-channel, rail-to-rail output, fixed-gain (−1, +2) amplifier; no internal VCC/2 bias; ±15V input fault rating (vs. ±17V). | Requires external bias network for single-supply use; better suited for dual-channel simultaneous sensing. | Choose AD8273ARZ when dual-amplifier integration and higher channel density outweigh the need for integrated biasing. |
Compared with MAX4175EUK+T, MAX4275AGESA+T adds extended temperature capability and improved thermal robustness; compared with AD8273ARZ, it offers superior single-channel integration with built-in biasing and higher fault tolerance-making it optimal for space-constrained, single-supply industrial sensors.
Availability
MAX4275AGESA+T is available at Aetrix Electronics and suitable for portable instrumentation, smart-card readers, and low-side current-sense applications requiring stable component supply, guaranteed 0.1% gain accuracy, and extended temperature operation.
Supply support for MAX4275AGESA+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 and mixed-signal ICs for industrial, medical, and communications markets, emphasizing integration, reliability, and low-power operation.
The MAX4275AGESA+T belongs to the GainAmp™ family of fixed-gain amplifiers, engineered to replace op-amp-plus-resistor configurations with monolithic, laser-trimmed solutions that reduce board area, improve accuracy, and simplify single-supply design.
FAQ
What is the operating temperature range of the MAX4275AGESA+T?
The MAX4275AGESA+T is specified for operation from −40°C to +125°C. This extended industrial temperature range ensures reliable performance in demanding environments such as motor control modules, automotive body electronics, and industrial PLC analog input stages-unlike the commercial-grade MAX4175EUK+T, which is limited to −40°C to +85°C.
Does the MAX4275AGESA+T require external biasing resistors for single-supply operation?
No, the MAX4275AGESA+T includes internal 150kΩ/150kΩ resistors that establish a precise VCC/2 bias at the IN+ pin. This eliminates external bias components in AC-coupled applications, reduces component count, improves thermal tracking of the bias point, and simplifies layout-key advantages over discrete op-amp solutions like the MAX4281.
What gain options are available for the MAX4275AGESA+T?
The MAX4275AGESA+T is offered in 54 standard noninverting gains ranging from +1.25V/V to +101V/V, and inverting gains from −0.25V/V to −100V/V. Each variant uses laser-trimmed on-chip resistors to achieve 0.1% gain accuracy. The specific gain value is encoded in the top-mark and orderable part number-not configurable on-board.
How does the MAX4275AGESA+T handle input overvoltage conditions?
The MAX4275AGESA+T withstands ±17V at either input relative to VEE using integrated back-to-back SCR structures and diode clamps with current-limiting resistors. This prevents phase reversal and limits input current to <3.5mA during fault events-enabling robust operation in noisy industrial I/O or hot-plug interfaces without external protection circuitry.
Can the MAX4275AGESA+T drive a 1000pF capacitive load stably?
The MAX4275AGESA+T is guaranteed stable with capacitive loads up to 470pF without external compensation. For 1000pF loads, stability requires adding a 100Ω isolation resistor in series with the output (as documented in Figure 9 of the datasheet), which preserves phase margin while allowing interface with large ADC input capacitance or long PCB traces.
MAX4275AGESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- GainAmp™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.7V/µs
- Gain Bandwidth Product:
- 2 MHz
- -3db Bandwidth:
- 970 kHz
- Current - Input Bias:
- 50 pA
- Voltage - Input Offset:
- 500 µV
- Current - Supply:
- 355µA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- Voltage - Supply Span (Min):
- 2.5 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
MAX4275AGESA+T FAQ
1.How can I place an order for MAX4275AGESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4275AGESA+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 MAX4275AGESA+T reliable?
The price and inventory of MAX4275AGESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4275AGESA+T is usually 5 days.
3.What payment methods are accepted for MAX4275AGESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4275AGESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4275AGESA+T?
MAX4275AGESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4275AGESA+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 MAX4275AGESA+T?
For technical support, including MAX4275AGESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4275AGESA+T requirements.
6.How does Aetrix verify that MAX4275AGESA+T is sourced from the original manufacturer or authorized distributors?
All MAX4275AGESA+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 MAX4275AGESA+T meets industry standards.
7.What is the process for return or replacement of MAX4275AGESA+T?
All MAX4275AGESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4275AGESA+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 MAX4275AGESA+T part is unused and in its original packaging.
Return procedure for MAX4275AGESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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