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Analog Devices Inc./Maxim Integrated MAX475CPD
- Part No.:
- MAX475CPD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX475CPD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,670
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Product details
Overview
MAX475CPD from Maxim Integrated is a quad, single-supply operational amplifier with rail-to-rail output swing, 10MHz unity-gain bandwidth, 15V/µs slew rate, and 2mA per amplifier supply current. It operates from +2.7V to +5.25V, features input range extending to the negative rail, and delivers ±50mV rail-to-rail output swing - ideal for battery-powered signal conditioning in portable instrumentation.
For engineers reviewing the MAX475CPD datasheet, MAX475CPD pinout, MAX475CPD application, or MAX475CPD equivalent, key selection considerations include guaranteed 10MHz bandwidth at 3V supply, rail-to-rail output drive into 600Ω, input bias current ≤200nA over temperature, and compatibility with industry-standard 14-pin DIP op-amp layout for legacy analog signal chains.
Technical Context
The MAX475CPD implements a bipolar input stage with output stage optimized for rail-to-rail swing while maintaining unity-gain stability across its full supply range (2.7V–5.25V). Its architecture supports single-supply operation without level-shifting circuitry, enabling direct interfacing with ADCs and DACs referenced to ground.
Each of the four amplifiers guarantees 10MHz unity-gain bandwidth and 15V/µs slew rate under 3V–5V supply conditions, with output short-circuit protection and phase margin ≥58° into 10kΩ||20pF loads - ensuring stable performance in active filter, servo-loop, and discrete gain-stage configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +5.25V - enables direct use with Li-ion, 3.3V, and 5V logic rails without regulation |
| Unity-Gain Bandwidth | 10MHz (min) - supports high-fidelity audio and 100kHz+ sensor signal conditioning |
| Slew Rate | 15V/µs (min) - ensures <700ns settling to 0.1% for 1V step, critical for pulse amplification |
| Supply Current per Amp | 3.4mA (max at +70°C) - allows four-channel operation within 14mA total budget |
| Input Offset Voltage | ±3.3mV (max at +70°C) - suitable for precision DC-coupled gain stages without trimming |
| Rail-to-Rail Output | Swings to within ±50mV of VEE and VCC - maximizes dynamic range in single-supply data acquisition |
| Input Common-Mode Range | Includes VEE (ground) - permits direct sensing of ground-referenced signals |
Pinout & Package
MAX475CPD is housed in a 14-pin plastic DIP package (0.300" wide), compatible with standard through-hole prototyping and legacy industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting Input (A–D) | High-impedance differential input nodes; bias current flows out (bipolar input) |
| 2, 6, 10, 12 | Noninverting Input (A–D) | Accepts signals down to VEE (0V); requires matched source impedance to minimize offset |
| 3, 7, 8, 14 | Output (A–D) | Rail-to-rail capable; short-circuit protected; drives 600Ω load to full swing |
| 4 | VEE | Negative supply pin - connect directly to ground in single-supply mode |
| 11 | VCC | Positive supply pin - bypass with 0.1µF ceramic capacitor close to pin |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers usable voltage range from VEE + 50mV to VCC – 50mV, preserving >96% of supply headroom |
| 15V/µs minimum slew rate | Enables accurate reproduction of fast transients up to 100kHz full-power sine waves |
| Guaranteed 10MHz bandwidth at 3V | Permits stable closed-loop gain ≥10 at 1MHz, supporting anti-aliasing and reconstruction filters |
| Input range includes negative rail | Eliminates need for external level shifters when amplifying ground-referenced sensor outputs |
| Short-circuit protected outputs | Withstands indefinite output-to-ground faults without latch-up or parametric degradation |
Applications
| Portable Equipment | Battery-Powered Instruments |
|---|---|
Use Scenario: Signal amplification in handheld multimeters and portable oscilloscopes powered by two AA cells. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, and reference buffering for dual-channel analog front-end. Use Value: 2.7V minimum supply operation extends battery life; rail-to-rail output maximizes ADC utilization without external biasing. | Use Scenario: Front-end conditioning for thermocouple and RTD measurements in field-deployable data loggers. IC Role / Device Role / Timing Role: Configured as precision instrumentation amplifier stage and low-drift buffer for 24-bit sigma-delta ADC inputs. Use Value: ±3.3mV max input offset ensures <0.1°C error in cold-junction compensation; 10MHz bandwidth rejects RF interference. |
| Signal Processing | Servo-Loops |
Use Scenario: Active bandpass filtering (190kHz center, Q=10) in ultrasonic distance sensors using discrete RC networks. IC Role / Device Role / Timing Role: One quarter of MAX475CPD implements each filter pole in cascaded topology with precise gain control. Use Value: 15V/µs slew rate prevents distortion at 1Vp-p output; unity-gain stability avoids external compensation components. | Use Scenario: Position feedback amplification and error correction in brushless DC motor controllers with Hall-effect sensors. IC Role / Device Role / Timing Role: Provides fast, low-noise error amplification and integrator function in analog PID loop compensators. Use Value: 600Ω drive capability directly interfaces with gate-driver input capacitance; 58° phase margin ensures loop stability under varying load inertia. |
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 | Lower bandwidth (1.2MHz), slower slew rate (0.5V/µs), no rail-to-rail output (1.5V headroom) | Acceptable for DC/low-frequency sensor buffering but unsuitable for >10kHz signal chains or 3V systems | Select LM324DR only when cost sensitivity outweighs speed and dynamic range requirements |
| TLV2464CDR | Rail-to-rail I/O, 6.4MHz bandwidth, 1.6V/µs slew rate, lower supply current (650µA/amp) | Better for ultra-low-power designs but lacks 10MHz bandwidth needed for high-fidelity filtering | Choose TLV2464CDR where quiescent current is critical and bandwidth ≤5MHz suffices |
Compared with LM324DR and TLV2464CDR, MAX475CPD uniquely delivers 10MHz bandwidth with rail-to-rail output in a legacy-compatible 14-pin DIP, making it irreplaceable for existing designs requiring fast, full-swing signal processing at 3V without layout revision.
Availability
MAX475CPD is available at Aetrix Electronics and suitable for portable equipment, battery-powered instruments, and signal processing applications requiring stable component supply and long-term industrial availability.
Supply support for MAX475CPD 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 computing markets.
The MAX473/MAX474/MAX475 family was designed specifically for single-supply, high-speed analog signal conditioning in space-constrained portable systems - prioritizing rail-to-rail output, low-voltage operation, and unity-gain stability without external compensation.
FAQ
What is the operating temperature range for MAX475CPD?
The MAX475CPD is specified for 0°C to +70°C ambient operation. This commercial-grade temperature range aligns with its 14-pin plastic DIP packaging and targets non-automotive, non-military applications such as test equipment and consumer portable devices. The device's electrical parameters - including 10MHz bandwidth and 15V/µs slew rate - are guaranteed across this full range, with supply current rising to 3.4mA per amplifier at +70°C.
Does MAX475CPD support dual-supply operation?
Yes, MAX475CPD supports dual-supply operation from ±1.35V to ±2.625V, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables. In dual-mode, VEE connects to the negative supply rail and VCC to the positive rail. Channel separation exceeds 120dB up to 300kHz with proper 0.1µF bypassing on both supplies. However, the device is optimized for single-supply use, with input common-mode range extending to VEE and rail-to-rail output swing referenced to both rails.
Can the input offset voltage of MAX475CPD be trimmed externally?
No, the input offset voltage of MAX475CPD cannot be trimmed externally. Unlike the single MAX473 (which provides offset null pins 1 and 8), the quad MAX475 - including MAX475CPD - has no dedicated offset adjustment terminals. Its input offset voltage is specified as ±3.3mV maximum over temperature, and design compensation must rely on system-level calibration or resistor matching at the inputs to mitigate bias-current-induced errors.
What is the maximum capacitive load MAX475CPD can drive stably?
MAX475CPD maintains stability with up to 390pF capacitive load in parallel with 10kΩ, as shown in Figure 3 of the datasheet. For larger loads (e.g., 1000pF), an isolation resistor (e.g., 10Ω) must be added in series with the output, as demonstrated in Figure 4. This configuration preserves phase margin by decoupling the load capacitance from the amplifier's feedback loop - a requirement explicitly documented for reliable operation beyond 390pF.
Is MAX475CPD pin-compatible with other quad op-amps in 14-pin DIP packages?
MAX475CPD uses the industry-standard 14-pin DIP op-amp pinout: VEE (pin 4), VCC (pin 11), and amplifier sections arranged as IN-/OUT/IN+ per channel (pins 1–3, 5–7, 8–10, 12–14). It is pin-compatible with other quad op-amps adhering to this layout (e.g., LM324, TL084), though functional differences - such as rail-to-rail output and 10MHz bandwidth - require verification of signal chain timing and headroom margins before substitution.
MAX475CPD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX475CPD FAQ
1.How can I place an order for MAX475CPD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX475CPD 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 MAX475CPD reliable?
The price and inventory of MAX475CPD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX475CPD is usually 5 days.
3.What payment methods are accepted for MAX475CPD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX475CPD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX475CPD?
MAX475CPD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX475CPD 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 MAX475CPD?
For technical support, including MAX475CPD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX475CPD requirements.
6.How does Aetrix verify that MAX475CPD is sourced from the original manufacturer or authorized distributors?
All MAX475CPD 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 MAX475CPD meets industry standards.
7.What is the process for return or replacement of MAX475CPD?
All MAX475CPD units undergo pre-shipment inspection (PSI). If there is an issue with MAX475CPD, 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 MAX475CPD part is unused and in its original packaging.
Return procedure for MAX475CPD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX475CPD Tags
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