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Analog Devices Inc./Maxim Integrated MAX4483ASD+
- Part No.:
- MAX4483ASD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4483ASD+.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,348
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Product details
Overview
MAX4483ASD+ from Maxim Integrated is a quad, rail-to-rail output operational amplifier designed for low-power, single-supply signal conditioning in harsh environments. It operates from +2.5V to +5.5V, draws 50μA per amplifier, delivers ±3mA output drive, and maintains unity-gain stability with up to 400pF capacitive load. It is specified across –40°C to +125°C and housed in a 14-pin SO package.
For engineers reviewing the MAX4483ASD+ datasheet, MAX4483ASD+ pinout, MAX4483ASD+ application, or MAX4483ASD+ equivalent, key selection criteria include its ultra-low quiescent current, rail-to-rail output swing (within 80mV of rails at 5kΩ), 105dB open-loop gain, 140kHz gain-bandwidth product, and automotive-grade temperature qualification.
Technical Context
The MAX4483ASD+ employs a BiCMOS input stage enabling picoampere-level input bias current (±100pA typ) and high input resistance (1000MΩ). Its rail-to-rail output stage uses complementary MOSFETs to achieve full-swing capability while sourcing/sinking 3mA into resistive loads.
It features a stable internal compensation architecture that ensures unity-gain stability with capacitive loads up to 400pF-critical for driving long traces or ADC input filters without external isolation resistors. The device exhibits 86dB typical CMRR and 92dB typical PSRR over its full supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.5V to +5.5V - supports direct interface with Li-ion, 3.3V, and 5V logic systems without level-shifting. |
| Quiescent Current per Amp | 50μA - enables multi-amp signal chains in battery-powered instruments with sub-200μA total bias. |
| Output Swing (RL = 5kΩ) | VSS + 8mV to VDD – 80mV - delivers true rail-to-rail dynamic range for 12-bit+ ADC front-ends. |
| Open-Loop Gain (AVOL) | 105dB at RL = 5kΩ - ensures < 0.001% gain error in precision buffer and gain-stage applications. |
| Gain-Bandwidth Product | 140kHz - suitable for DC-coupled sensor amplification, zero-crossing detection, and slow-control loops. |
| Capacitive Load Stability | Up to 400pF - eliminates need for output series resistors when driving sampling capacitors or long PCB traces. |
| Input Offset Voltage | ±5.5mV max - enables accurate amplification of mV-level thermocouple or bridge outputs without trimming. |
| THD (1kHz, RL = 100kΩ) | 0.005% - preserves signal fidelity in audio preamps and analog telemetry paths. |
Pinout & Package
MAX4483ASD+ is packaged in a 14-pin SO (Small Outline) surface-mount package with standard 1.27mm pitch and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 10 | IN+ (A–D) | Noninverting inputs for each of four independent amplifiers - high-impedance (1000MΩ), low-bias (±100pA) nodes for precision sensor interfacing. |
| 2, 4, 6, 9 | IN− (A–D) | Inverting inputs - matched to IN+ for common-mode rejection; compatible with feedback networks up to 10MΩ. |
| 7, 8, 11, 14 | OUT (A–D) | Rail-to-rail output terminals - capable of sourcing/sinking 3mA while maintaining < 150mV saturation voltage at 5kΩ. |
| 12 | VDD | Positive supply pin - requires local 0.1μF ceramic bypass capacitor to minimize supply noise coupling. |
| 13 | VSS | Negative supply pin - connects to ground in single-supply operation; must be low-impedance return path. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable dynamic range within 8mV/80mV of VSS/VDD at 5kΩ - maximizes ADC utilization in 3.3V systems. |
| Ultra-low quiescent current | 50μA per amplifier - allows integration of four independent channels in space-constrained portable devices without thermal penalty. |
| Unity-gain stable with 400pF load | Eliminates need for output isolation resistors when driving anti-aliasing filters or SAR ADC inputs directly. |
| Automotive temperature range | –40°C to +125°C operation - qualified for under-hood sensors, electronic ignition modules, and industrial control I/O. |
| High open-loop gain (105dB) | Ensures < 0.001% closed-loop gain error with 10kΩ/10kΩ feedback - reduces calibration burden in production test. |
| Low THD (0.005%) | Maintains signal integrity in infrared receiver baseband amplifiers and audio monitoring circuits without post-amplifier filtering. |
Applications
| Single-Supply Zero-Crossing Detectors | Electronic Ignition Modules |
|---|---|
Use Scenario: Detecting AC waveform polarity transitions in microcontroller-based timing circuits using a single 3.3V supply. IC Role / Device Role / Timing Role: Quad comparator replacement via overdriven op-amp configuration; one amplifier per cylinder channel. Use Value: Rail-to-rail output swing ensures clean TTL-compatible transitions; 50μA per amp minimizes standby power in engine-off state. | Use Scenario: Amplifying and conditioning coil driver feedback signals in 12V automotive ignition systems. IC Role / Device Role / Timing Role: Four-channel signal conditioner for primary current sensing, dwell time monitoring, knock detection, and coil health diagnostics. Use Value: –40°C to +125°C rating ensures reliability under hood; 400pF capacitive load tolerance accommodates EMI filter networks. |
| Infrared Receivers | Sensor Signal Detection |
Use Scenario: Amplifying weak modulated IR photodiode currents in remote control receivers and proximity sensors. IC Role / Device Role / Timing Role: Transimpedance preamplifier + active bandpass filter stage; leverages low input bias current and low noise density (100nV/√Hz). Use Value: 0.005% THD preserves pulse shape fidelity; rail-to-rail output drives subsequent digital comparators directly. | Use Scenario: Conditioning low-level outputs from strain gauges, thermopiles, and MEMS accelerometers in industrial IoT nodes. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (using two amps per channel in diff-amp configuration) with gain and offset adjustment. Use Value: ±5.5mV VOS max and ±3μV/°C drift enable uncalibrated operation over wide temperature spans; 1000MΩ input resistance prevents loading of high-Z sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher supply current (1.2mA per amp), no rail-to-rail output, wider VOS range (±7mV), lower GBW (1.2MHz but higher noise). | Not suitable for low-voltage (2.5V) or precision rail-to-rail output applications; acceptable only in legacy 5V designs with relaxed accuracy. | Select MAX4483ASD+ when operating below 3V, requiring < 50μA per amp, or needing guaranteed rail-to-rail swing. |
| TLV2464CDR | Lower quiescent current (23μA), rail-to-rail I/O, higher GBW (6.4MHz), but only rated to +105°C and higher VOS (±2mV typ). | Better for high-speed, low-noise applications at ambient temperatures; unsuitable for under-hood or extended-temperature industrial use. | Choose MAX4483ASD+ for automotive-grade reliability and guaranteed performance at +125°C; choose TLV2464CDR for higher bandwidth where temperature is not extreme. |
Compared with LM324DR and TLV2464CDR, the MAX4483ASD+ uniquely balances ultra-low power (50μA), rail-to-rail output, and full automotive temperature qualification - making it the only option among the three qualified for harsh-environment quad amplification without performance trade-offs in supply voltage, output swing, or thermal range.
Availability
MAX4483ASD+ is available at Aetrix Electronics and suitable for electronic ignition modules, infrared receivers, sensor signal detection, and single-supply zero-crossing detectors requiring stable component supply across automotive and industrial lifecycles.
Supply support for MAX4483ASD+ 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4480–MAX4483 family was designed specifically for cost-sensitive, low-power, single-supply signal conditioning in automotive and industrial environments where rail-to-rail output, wide temperature operation, and capacitive-load stability are mandatory.
FAQ
What is the maximum capacitive load the MAX4483ASD+ can drive while remaining stable?
The MAX4483ASD+ is unity-gain stable with capacitive loads up to 400pF, as confirmed in the Electrical Characteristics table and Typical Operating Characteristics (Figure MAX4480 toc19). This specification applies across the full –40°C to +125°C temperature range and eliminates the need for output isolation resistors in most sensor interface and ADC driver applications. Exceeding 400pF may cause peaking or oscillation unless compensated per the manufacturer's recommended RISO network.
Does the MAX4483ASD+ have a shutdown pin, and how does it behave?
No, the MAX4483ASD+ does not include a shutdown function. Only the MAX4481 variant in the same family features an active-low SHDN pin that reduces supply current to 0.5μA max. The MAX4483ASD+ is a fixed-function quad op amp with no enable/disable control; all four amplifiers operate continuously when powered. This simplifies design in always-on applications like sensor monitoring but excludes it from duty-cycled ultra-low-power systems.
What is the input common-mode voltage range for the MAX4483ASD+?
The input common-mode voltage range for the MAX4483ASD+ is specified as VSS to VDD – 1.3V at +25°C and VSS to VDD – 1.4V over the full –40°C to +125°C range. This means the device accepts input signals down to ground but cannot reliably process voltages within ~1.4V of the positive rail. For true rail-to-rail input capability, a different amplifier family (e.g., MAX447X) would be required.
Can the MAX4483ASD+ operate from a 2.5V supply, and what performance changes occur?
Yes, the MAX4483ASD+ is fully specified to operate from +2.5V to +5.5V. At 2.5V, quiescent current drops to 45μA per amplifier (vs. 50μA at 5V), output swing remains rail-to-rail (though absolute voltage headroom shrinks), and large-signal gain decreases slightly (to ≥94dB at 5kΩ). All key parameters-including CMRR, PSRR, and capacitive-load stability-remain valid across the entire supply range, enabling direct use in energy-harvesting and coin-cell-powered systems.
What package type is used for the MAX4483ASD+, and is it RoHS-compliant?
The MAX4483ASD+ uses a 14-pin SO (Small Outline) package with standard 1.27mm lead pitch and matte tin lead finish. The "+" suffix in the part number explicitly denotes RoHS-compliance and lead-free construction per JEDEC J-STD-609. This package is footprint-compatible with industry-standard SO-14 land patterns and supports automated reflow soldering at peak temperatures up to +240°C.
MAX4483ASD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.08V/µs
- Gain Bandwidth Product:
- 140 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 50µA (x4 Channels)
- Current - Output / Channel:
- 17 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4483ASD+ FAQ
1.How can I place an order for MAX4483ASD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4483ASD+ 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 MAX4483ASD+ reliable?
The price and inventory of MAX4483ASD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4483ASD+ is usually 5 days.
3.What payment methods are accepted for MAX4483ASD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4483ASD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4483ASD+?
MAX4483ASD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4483ASD+ 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 MAX4483ASD+?
For technical support, including MAX4483ASD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4483ASD+ requirements.
6.How does Aetrix verify that MAX4483ASD+ is sourced from the original manufacturer or authorized distributors?
All MAX4483ASD+ 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 MAX4483ASD+ meets industry standards.
7.What is the process for return or replacement of MAX4483ASD+?
All MAX4483ASD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4483ASD+, 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 MAX4483ASD+ part is unused and in its original packaging.
Return procedure for MAX4483ASD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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