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Analog Devices Inc./Maxim Integrated MAX475CSD+
- Part No.:
- MAX475CSD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX475CSD+.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:190
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Product details
Overview
MAX475CSD+ from Maxim Integrated is a quad, single-supply operational amplifier optimized for rail-to-rail output swing and high-speed signal conditioning. It delivers 10MHz unity-gain bandwidth, 15V/µs slew rate, ±2.8mV input offset voltage (max), 2.7V–5.25V supply operation, and drives 600Ω loads - used in portable instrumentation, battery-powered filters, and servo-loop feedback stages.
For engineers reviewing the MAX475CSD+ datasheet, MAX475CSD+ pinout, MAX475CSD+ application, or MAX475CSD+ equivalent, key selection considerations include guaranteed rail-to-rail output swing (within ±50mV of rails), low 3.6mA total supply current (0.9mA per amplifier), input common-mode range extending to VEE, short-circuit protected outputs, and SO-14 package compatibility with industry-standard op-amp layouts.
Technical Context
The MAX475CSD+ integrates four independent bipolar op amps on a single die, each featuring unity-gain stability, internal compensation, and rail-to-rail output stage architecture. Its input stage accepts signals down to the negative rail (VEE = 0V in single-supply mode), enabling true single-supply signal acquisition without level-shifting circuitry.
Designed for low-voltage portable systems, it operates across 2.7V–5.25V with guaranteed performance over 0°C to +70°C. The device exhibits 63° phase margin at 10kΩ||20pF load and maintains stable small-signal transient response up to 220pF capacitive loading when properly bypassed and laid out.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7V to 5.25V - supports Li-ion battery (3.0–4.2V) and regulated 3.3V systems without level translation |
| Unity-Gain Bandwidth | 10MHz (min) - enables accurate amplification of signals up to ~1MHz in closed-loop gain ≥2 configurations |
| Slew Rate | 15V/µs (min) - ensures <700ns settling to 0.1% for 1V step inputs, suitable for fast pulse conditioning |
| Input Offset Voltage | ±2.8mV (max, TA = –40°C to +85°C) - limits DC error in precision sensor buffering and active filter DC biasing |
| Output Drive Capability | 600Ω load (guaranteed) - supports direct interface to analog-to-digital converter input networks and low-impedance transducer drivers |
| Rail-to-Rail Output Swing | Within ±50mV of VEE and VCC - maximizes dynamic range in 3.3V or 5V single-supply data acquisition front-ends |
| Supply Current (Total) | 3.6mA (max, TA = –40°C to +85°C) - enables four-channel amplification in sub-10mA portable system power budgets |
Pinout & Package
MAX475CSD+ is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, 3.9mm wide, with standard 1.27mm pitch. Pin 1 is marked by a beveled corner or dot; pin numbering follows counter-clockwise convention from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN– (A/B/C/D) | Inverting input for each of four independent amplifiers - requires matched source impedance to minimize bias-current-induced offset |
| 2, 6, 10, 12 | IN+ (A/B/C/D) | Noninverting input for each amplifier - extends to VEE rail, enabling ground-referenced sensor interfacing |
| 3, 7, 8, 14 | OUT (A/B/C/D) | Amplifier output - rail-to-rail swing, short-circuit protected, capable of sourcing/sinking 5mA continuously |
| 4 | VEE | Negative supply pin - tied to ground in single-supply operation; substrate connection point |
| 11 | VCC | Positive supply pin - requires 0.1µF ceramic bypass capacitor placed within 5mm of pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Swings to within 50mV of both supply rails - preserves full-scale resolution in 3.3V ADC interfaces |
| Single-supply operation | Functional from 2.7V to 5.25V with input range including VEE - eliminates need for dual supplies in portable designs |
| 15V/µs minimum slew rate | Enables clean amplification of 100kHz square waves with <1% overshoot into 10kΩ||20pF loads |
| Input common-mode range includes VEE | Accepts 0V input signals with no external level shift - simplifies connection to ground-referenced sensors and DACs |
| Short-circuit protected outputs | Withstands indefinite output-to-ground shorts without latch-up or parametric degradation |
| Guaranteed 10MHz unity-gain bandwidth | Validated across temperature and supply voltage - ensures consistent AC performance in production environments |
Applications
| Portable Instrumentation | Battery-Powered Signal Filters |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying mV-level thermocouple or shunt voltage signals under 3.3V battery power. IC Role / Device Role / Timing Role: Quad op amp providing simultaneous gain, filtering, and buffer isolation for analog measurement channels. Use Value: Rail-to-rail output swing maximizes usable ADC input range; low 3.6mA total supply current extends battery life in continuous measurement mode. |
Use Scenario: Active bandpass filter (fo = 190kHz, Q = 10) in ultrasonic distance sensor using one 1/4 section of MAX475CSD+. IC Role / Device Role / Timing Role: High-speed, low-distortion op amp configured as second-order bandpass stage with precise gain and phase response. Use Value: 10MHz GBW and 15V/µs slew rate maintain filter shape integrity at 190kHz; 600Ω drive capability directly interfaces to downstream comparator inputs. |
| Servo-Loop Feedback Amplifier | Discrete Sensor Signal Conditioning |
Use Scenario: Position error amplifier in closed-loop motor control system powered from 5V rail with 0–5V encoder feedback. IC Role / Device Role / Timing Role: Precision error amplifier comparing reference and feedback signals, driving PWM modulator input. Use Value: ±2.8mV max input offset minimizes static position error; rail-to-rail output ensures full 0–5V command range is utilized. |
Use Scenario: Low-noise preamplifier for piezoelectric vibration sensor in predictive maintenance node operating from coin cell. IC Role / Device Role / Timing Role: First-stage gain block with high CMRR (70dB min) rejecting supply noise and EMI in unshielded enclosures. Use Value: 40nV/√Hz input noise density preserves SNR for µV-level sensor outputs; 80dB PSRR rejects ripple from switching regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | CMOS input (0.5pA IB), lower supply current (1.3mA per amp), but only 6.4MHz GBW and 1.6V/µs slew rate | Preferred for ultra-low-power, high-impedance sensor nodes; unsuitable for >100kHz signal paths requiring fast settling | Select TLV2464IDR when input bias current <1pA is critical and bandwidth ≤1MHz suffices |
| OPA4340UA | Rail-to-rail I/O, 5.5MHz GBW, 1.25V/µs slew rate, higher precision (±0.5mV VOS), but 1.8mA per amp and no short-circuit protection | Better for DC-critical applications like precision data loggers; lacks robustness for industrial I/O with potential fault conditions | Choose OPA4340UA for high-accuracy, low-drift DC amplification where fault tolerance is managed externally |
Compared with TLV2464IDR and OPA4340UA, MAX475CSD+ uniquely balances speed (10MHz/15V/µs), rail-to-rail output, short-circuit resilience, and moderate power (3.6mA total) - making it the only option among the three qualified for battery-powered servo loops and active filters demanding both bandwidth and ruggedness.
Availability
MAX475CSD+ is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered signal filters, and servo-loop feedback circuits requiring stable component supply and long-term design continuity.
Supply support for MAX475CSD+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX473/MAX474/MAX475 family was engineered for single-supply, high-speed signal conditioning in space- and power-constrained portable systems - emphasizing rail-to-rail output, low quiescent current, and robust output drive.
FAQ
What is the operating temperature range for MAX475CSD+?
The MAX475CSD+ is specified for operation from 0°C to +70°C. This commercial-grade temperature range aligns with its "C" grade suffix and is validated across all electrical parameters in the datasheet's +25°C and 0°C to +70°C test conditions. It is not rated for extended industrial (–40°C to +85°C) or military (–55°C to +125°C) ranges - those require MAX475ESD or MAX475MJD variants.
Is MAX475CSD+ pin-compatible with other packages in the MAX475 family?
Yes, MAX475CSD+ uses the same 14-pin SOIC footprint and pinout as MAX475CPD (14-pin DIP) and MAX475EPD (14-pin DIP, extended temp). All share identical pin functions: pins 1/5/9/13 = IN–, 2/6/10/12 = IN+, 3/7/8/14 = OUT, 4 = VEE, 11 = VCC. No PCB redesign is needed when migrating between these packages.
Does MAX475CSD+ support dual-supply operation?
Yes, MAX475CSD+ supports dual-supply operation from ±1.35V to ±2.625V. Its input common-mode range extends to VEE, and output swings within 50mV of both rails - enabling symmetric ±2.5V operation. Bypass each supply rail independently with 0.1µF ceramic capacitors to ground for optimal channel separation (>120dB up to 300kHz).
Can the input offset voltage of MAX475CSD+ be trimmed externally?
No, MAX475CSD+ does not support external offset nulling. Unlike the single-amplifier MAX473 (which has dedicated NULL pins 1 and 8), the quad MAX475 has no offset trim terminals. Its input offset voltage is factory trimmed and specified as ±2.8mV maximum over –40°C to +85°C - sufficient for most portable signal-chain applications without adjustment.
What is the recommended power supply bypassing for MAX475CSD+?
Place a 0.1µF X7R ceramic capacitor between VCC (pin 11) and VEE (pin 4), located within 5mm of the MAX475CSD+ package. For improved high-frequency PSRR and channel separation above 300kHz, add a parallel 10µF tantalum or aluminum electrolytic capacitor. Avoid long traces or vias between bypass caps and supply pins to preserve stability.
MAX475CSD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 17V/µs
- Gain Bandwidth Product:
- 12 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 800 µV
- Current - Supply:
- 2mA (x4 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX475CSD+ FAQ
1.How can I place an order for MAX475CSD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX475CSD+ 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 MAX475CSD+ reliable?
The price and inventory of MAX475CSD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX475CSD+ is usually 5 days.
3.What payment methods are accepted for MAX475CSD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX475CSD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX475CSD+?
MAX475CSD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX475CSD+ 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 MAX475CSD+?
For technical support, including MAX475CSD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX475CSD+ requirements.
6.How does Aetrix verify that MAX475CSD+ is sourced from the original manufacturer or authorized distributors?
All MAX475CSD+ 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 MAX475CSD+ meets industry standards.
7.What is the process for return or replacement of MAX475CSD+?
All MAX475CSD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX475CSD+, 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 MAX475CSD+ part is unused and in its original packaging.
Return procedure for MAX475CSD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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