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Analog Devices Inc./Maxim Integrated MAX4462TESA+
- Part No.:
- MAX4462TESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4462TESA+.pdf
- Description:
- IC INST AMP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,502
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Product details
Overview
The MAX4462TESA+ from Maxim Integrated is a precision rail-to-rail output instrumentation amplifier with fixed gain of 10 V/V, REF input for bipolar operation in single-supply systems, ±0.1% gain accuracy, 100 µV typical input offset voltage, and 2.5 MHz gain-bandwidth product - designed for low-side current sensing and strain-gauge signal conditioning in battery-powered industrial sensors.
For engineers reviewing the MAX4462TESA+ datasheet, MAX4462TESA+ pinout, MAX4462TESA+ application, or MAX4462TESA+ equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in transducer interfaces and medical equipment, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The MAX4462TESA+ implements Maxim's proprietary indirect current-feedback architecture, enabling ground-sensing capability while maintaining ultra-low 1 pA typical input bias current and high common-mode rejection (90–120 dB). Its REF pin accepts an external reference to set output DC level at zero differential input, supporting true bipolar signal amplification from single supplies.
This device operates from 2.85 V to 5.25 V single supply or ±2.6 V dual supply, features rail-to-rail output swing, and achieves 0.12% typical gain error at G = 10 with 18 nV/√Hz input-referred noise - optimized for high-impedance, low-amplitude differential sources like bridge sensors and current-shunt monitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain | Fixed 10 V/V (suffix 'T'), factory-trimmed to ±0.1% accuracy at +25°C |
| Input Offset Voltage | 100 µV typical; enables accurate amplification of mV-level differential signals without nulling circuitry |
| Gain-Bandwidth Product | 2.5 MHz; supports stable 10× amplification up to 250 kHz (–3 dB BW) with 100 pF load |
| Supply Current | 700 µA typical at 5 V; allows integration into power-constrained portable instrumentation |
| Input Bias Current | 1 pA typical; preserves signal integrity in high-impedance sensor interfaces (e.g., piezoresistive bridges) |
| Input Noise Density | 18 nV/√Hz at 10 kHz; ensures low-noise performance for precision analog front-ends |
| Common-Mode Rejection | 90–120 dB (DC to 100 Hz); rejects interference from noisy industrial environments |
Pinout & Package
MAX4462TESA+ is housed in an 8-pin SO (Small Outline) package with exposed pad not present (SO variant). Pin functions are electrically validated per Maxim's official pin description table for MAX4462.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplified Output | Rail-to-rail voltage output referenced to REF; drives loads ≥10 kΩ |
| 2 (VSS) | Negative Supply | Connect to ground (single supply) or negative rail (dual supply); defines lower output swing limit |
| 3 (IN+) | Positive Differential Input | High-impedance MOS input; accepts small-signal differential voltages up to ±100 mV at G = 10 |
| 4, 5 (N.C.) | No Connection | Not internally bonded; must remain unconnected on PCB |
| 6 (IN−) | Negative Differential Input | Complementary high-Z input; forms matched pair with IN+ for CMRR optimization |
| 7 (VDD) | Positive Supply | Accepts 2.85 V to 5.25 V single supply or +2.6 V in dual-supply mode |
| 8 (REF) | Output Reference Level | Sets output DC level at zero differential input; range: 0.1 V to (VDD − 1.7 V); typically tied to VDD/2 for symmetric swing |
Key Features
| Feature | Design Value |
|---|---|
| Bipolar operation from single supply | REF pin enables ±VOUT swing centered at user-defined DC level - eliminates need for dual supplies in portable medical devices |
| Ultra-low input bias current | 1 pA typical preserves gain accuracy in high-source-impedance applications (e.g., pH electrodes, thermopiles) |
| Factory-trimmed precision gain | G = 10 version (TESA+) guaranteed ±0.1% gain error at +25°C - reduces calibration overhead in production test |
| Rail-to-rail output stage | Delivers full dynamic range across 2.85 V to 5.25 V supply - maximizes ADC utilization in 12-bit+ data acquisition systems |
| Wide input common-mode range | Extends from VSS − 0.1 V to VDD − 1.7 V - supports direct connection to low-side current-sense shunts near ground |
Applications
| Strain-Gauge Amplifier | Precision Low-Side Current Sense |
|---|---|
|
Use Scenario: Amplifying microvolt-level differential outputs from 350 Ω Wheatstone bridge strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation amplifier providing fixed 10× gain, REF-biased output, and high CMRR to reject bridge excitation noise. Use Value: Enables direct interface to 16-bit SAR ADCs without additional level-shifting; ±0.1% gain tolerance reduces system calibration steps. |
Use Scenario: Measuring motor phase current via 5 mΩ shunt resistor in battery-powered industrial drives. IC Role / Device Role / Timing Role: Ground-sensing instrumentation amplifier with REF pin tied to mid-supply, converting bidirectional shunt voltage to bipolar output. Use Value: Supports true bidirectional current measurement with single 3.3 V supply - avoids cost and complexity of dual-rail op-amp solutions. |
| Low-Noise Microphone Preamplifier | Battery-Powered Medical Equipment |
|
Use Scenario: Conditioning output of electret condenser microphones (ECM) in portable voice recorders and hearing aids. IC Role / Device Role / Timing Role: Low-noise (18 nV/√Hz), low-power (700 µA) instrumentation amplifier with rail-to-rail output driving anti-aliasing filter. Use Value: Delivers SNR > 85 dB over 20 Hz–20 kHz with minimal quiescent power - extends battery life in Class II medical audio devices. |
Use Scenario: Signal conditioning for ECG electrode inputs in handheld patient monitors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Precision instrumentation amplifier rejecting 50/60 Hz mains interference while amplifying µV-level biopotentials. Use Value: 120 dB CMRR at DC and 100 µV offset enable baseline-stable amplification without AC coupling - critical for diagnostic waveform fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8221ARMZ | Fixed G = 10, 10 MHz GBWP, 250 µV max VOS, requires dual supply or level-shifting for single-supply REF-less operation | Lacks REF pin; unsuitable for true bipolar output from single supply without external bias network | Select when higher bandwidth is required and REF functionality is unnecessary; verify layout compatibility with different pinout |
| LTC6915CMS8#PBF | Digitally programmable gain (1–100), 1.5 MHz GBWP, 125 µV max VOS, no REF pin, SPI interface required | Requires digital control lines and firmware support; not drop-in for analog-only designs | Choose when gain flexibility across multiple channels justifies added complexity and cost; avoid if analog simplicity is mandatory |
Compared with AD8221ARMZ and LTC6915CMS8#PBF, the MAX4462TESA+ uniquely delivers REF-based bipolar output from single supply with lowest input bias current (1 pA) and smallest footprint among SO-packaged alternatives - making it optimal for space- and power-constrained analog sensor nodes.
Availability
MAX4462TESA+ is available at Aetrix Electronics and suitable for industrial process control, strain-gauge amplifiers, and precision low-side current sense applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX4462TESA+ 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 high-performance analog and mixed-signal ICs for industrial, medical, and communications applications.
The MAX4462TESA+ belongs to Maxim's precision instrumentation amplifier product line, engineered specifically for low-power, high-accuracy signal conditioning of millivolt-level differential sensor outputs in resource-constrained systems.
FAQ
What is the gain configuration of the MAX4462TESA+?
The MAX4462TESA+ is a fixed-gain instrumentation amplifier with G = 10 V/V, indicated by the 'T' suffix in its part number. It is factory trimmed to ±0.1% gain accuracy at +25°C and does not require external resistors to set gain. This configuration simplifies design and improves production yield compared to adjustable-gain variants like the MAX4460.
How does the REF pin function in the MAX4462TESA+?
The REF pin on the MAX4462TESA+ sets the output DC level when the differential input is zero. For example, tying REF to VDD/2 configures the device for symmetric bipolar output swing (e.g., 0.85 V to 4.15 V with 5 V supply). The REF input range is specified from VSS + 0.1 V to VDD − 1.7 V, enabling flexible level-setting in single-supply systems without dual rails.
Can the MAX4462TESA+ operate from dual supplies?
Yes, the MAX4462TESA+ supports dual-supply operation up to ±2.6 V (VDD = +2.6 V, VSS = −2.6 V), with REF typically connected to ground. In this mode, it delivers true bipolar output centered at 0 V for zero differential input. The input common-mode range extends from VSS − 0.1 V to VDD − 1.7 V, preserving functionality across both supply configurations.
What is the maximum capacitive load the MAX4462TESA+ can drive stably?
The MAX4462TESA+ is stable with capacitive loads up to 100 pF, as confirmed in the datasheet's Electrical Characteristics table under "Maximum Capacitive Load." Driving larger loads may cause peaking or oscillation; for heavier loads, an external isolation resistor (e.g., 10–50 Ω) between OUT and the capacitor is recommended to maintain phase margin.
Does the MAX4462TESA+ have shutdown capability?
No, the MAX4462TESA+ does not include a shutdown feature. That function is exclusive to the MAX4461 series (e.g., MAX4461TESA), which uses the SHDN pin. The MAX4462TESA+ maintains continuous operation with 700 µA typical supply current - appropriate for always-on sensing nodes where power cycling is not required.
MAX4462TESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- Instrumentation
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- 250 kHz
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 50 µV
- Current - Supply:
- 800µA
- Current - Output / Channel:
- 150 mA
- Voltage - Supply Span (Min):
- 2.85 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4462TESA+ FAQ
1.How can I place an order for MAX4462TESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4462TESA+ 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 MAX4462TESA+ reliable?
The price and inventory of MAX4462TESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4462TESA+ is usually 5 days.
3.What payment methods are accepted for MAX4462TESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4462TESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4462TESA+?
MAX4462TESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4462TESA+ 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 MAX4462TESA+?
For technical support, including MAX4462TESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4462TESA+ requirements.
6.How does Aetrix verify that MAX4462TESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4462TESA+ 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 MAX4462TESA+ meets industry standards.
7.What is the process for return or replacement of MAX4462TESA+?
All MAX4462TESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4462TESA+, 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 MAX4462TESA+ part is unused and in its original packaging.
Return procedure for MAX4462TESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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