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Analog Devices Inc./Maxim Integrated MAX414CPD+
- Part No.:
- MAX414CPD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX414CPD+.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,604
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Product details
Overview
MAX414CPD+ from Maxim Integrated is a quad, precision, low-noise operational amplifier optimized for high-speed, low-voltage systems. It delivers 2.4nV/√Hz input voltage-noise density at 1kHz, 28MHz unity-gain bandwidth, and 4.5V/µs slew rate while operating from ±2.4V to ±5V supplies. It is used in ultra-low-noise instrumentation amplifiers and bridge signal conditioning circuits requiring stable DC accuracy and wideband fidelity.
For engineers reviewing the MAX414CPD+ datasheet, MAX414CPD+ pinout, MAX414CPD+ application, or MAX414CPD+ equivalent, key selection criteria include guaranteed 2.4nV/√Hz noise performance at 1kHz, ±250µV max input offset voltage (0°C to +70°C), 2.5mA per amplifier supply current, and compatibility with 14-pin plastic DIP packaging for through-hole prototyping and industrial control interfaces.
Technical Context
The MAX414CPD+ employs a bipolar input stage designed to minimize voltage noise without compromising DC precision-achieving <2.4nV/√Hz at 1kHz while maintaining ±250µV max VOS over 0°C to +70°C. Its 28MHz gain-bandwidth product and 4.5V/µs slew rate support stable unity-gain operation in wideband measurement paths.
It operates across ±2.4V to ±5V supplies, delivering ±3.6V output swing into 2kΩ loads, and features 115dB min open-loop voltage gain and 135dB channel separation at 1kHz-critical for quad-channel signal integrity in differential sensor front-ends and multi-channel data acquisition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 2.4nV/√Hz (max) at 1kHz - enables sub-µV-level signal resolution in low-amplitude sensor interfaces |
| Unity-Gain Bandwidth | 28MHz - supports stable amplification of signals up to ~10MHz with minimal phase lag |
| Slew Rate | 4.5V/µs - ensures faithful reproduction of fast-rising transients in pulse and audio applications |
| Input Offset Voltage | ±250µV (max) at 0°C to +70°C - maintains DC accuracy in precision gain stages and bridge amplifiers |
| Supply Current per Amp | 2.5mA - balances low-noise performance with power efficiency in multi-amp systems |
| CMRR | 115dB (min) - rejects common-mode interference in noisy industrial environments |
| PSRR | 96dB (min) - suppresses supply ripple in battery-powered or shared-rail systems |
Pinout & Package
MAX414CPD+ is housed in a 14-pin plastic DIP package (package code P14-3), with exposed pad not present-suitable for through-hole mounting and legacy PCB designs. Pin 1 is top-left corner when notch faces upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Output of amplifier channel 1 - drives external load or next-stage input with ±3.6V swing into 2kΩ |
| 2 | IN1− | Inverting input of channel 1 - accepts feedback network or differential signal reference |
| 3 | IN1+ | Noninverting input of channel 1 - connects to sensor, reference, or signal source with high CMRR |
| 4 | V− | Negative supply rail - must be connected to system ground or negative bias for dual-supply operation |
| 5 | V+ | Positive supply rail - supplies +5V (or +2.4V min) to enable full output swing and noise performance |
| 6 | IN2+ | Noninverting input of channel 2 - electrically isolated from channel 1 for independent signal routing |
| 7 | IN2− | Inverting input of channel 2 - supports differential configuration or single-ended gain setting |
| 8 | OUT2 | Output of amplifier channel 2 - shares same electrical specs as OUT1; no crosstalk above 135dB |
| 9 | OUT3 | Output of amplifier channel 3 - identical performance to OUT1/OUT2; validated for simultaneous use |
| 10 | IN3− | Inverting input of channel 3 - matches IN1−/IN2− pin function and impedance characteristics |
| 11 | IN3+ | Noninverting input of channel 3 - supports matched-pair configurations with channels 1 and 2 |
| 12 | V− | Shared negative supply - internally tied to pin 4; must be low-impedance for all four amplifiers |
| 13 | IN4+ | Noninverting input of channel 4 - completes quad-channel set; fully specified across temperature |
| 14 | IN4− | Inverting input of channel 4 - supports independent gain/feedback per channel without interaction |
Key Features
| Feature | Design Value |
|---|---|
| Low 1/f noise corner | 90Hz - minimizes low-frequency drift in DC-coupled instrumentation and sensor signal chains |
| No internal input current-limiting resistors | Preserves 2.4nV/√Hz noise floor - unlike standard op amps, avoids resistor-induced noise degradation |
| Guaranteed unity-gain stability | Enables direct use in voltage followers and active filters without external compensation |
| High channel separation | 135dB at 1kHz - prevents inter-channel coupling in multi-sensor or multi-axis measurement systems |
| Wide supply range | ±2.4V to ±5V - supports operation from single 4.8V supplies or standard ±5V rails with no derating |
Applications
| Low-Noise Frequency Synthesizers | Infrared Detectors |
|---|---|
Use Scenario: Amplifying low-level IF signals in PLL-based frequency synthesizers where phase noise directly impacts spectral purity. IC Role / Device Role / Timing Role: Low-noise preamplifier and loop filter buffer in VCO control path, preserving signal-to-noise ratio before frequency division. Use Value: 2.4nV/√Hz noise density ensures <0.1° RMS phase jitter contribution at 1kHz offset, critical for RF local oscillator stability. |
Use Scenario: Conditioning weak photocurrent outputs from cooled HgCdTe or InSb infrared detectors in spectroscopy systems. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) front-end with matched feedback networks for four parallel detector elements. Use Value: 28MHz bandwidth and 4.5V/µs slew rate support >10MHz detector pulse response while maintaining sub-µV noise floor. |
| High-Quality Audio Amplifiers | Bridge Signal Conditioning |
Use Scenario: Implementing discrete-channel line drivers and headphone amplifiers in professional audio interfaces requiring THD+N < -90dB. IC Role / Device Role / Timing Role: Quad-channel output buffer and gain stage, each channel independently configured for balanced/unbalanced drive. Use Value: 115dB voltage gain and 135dB channel separation prevent crosstalk between left/right and surround channels. |
Use Scenario: Amplifying differential output from Wheatstone bridge strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Precision instrumentation amplifier core using two MAX414CPD+ channels per bridge leg for ratiometric rejection. Use Value: ±250µV max VOS and 115dB CMRR ensure <0.01% full-scale error in 1mV/V bridge outputs at room temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134UA | Higher 8nV/√Hz noise at 1kHz; 4MHz GBW; JFET input; ±18V max supply | Better for high-impedance sources (>100kΩ); unsuitable for ±2.4V operation or sub-10MHz bandwidth needs | Select only if ultra-low input bias (<1pA) is required and noise >3× higher is acceptable |
| LT1499CN#PBF | 3.5nV/√Hz noise; 10MHz GBW; rail-to-rail output; ±15V max supply | Superior output swing near rails but lower bandwidth limits use in >5MHz signal paths | Prefer when driving ADC inputs directly with rail-to-rail capability, not for wideband low-noise gain |
Compared with OPA4134UA and LT1499CN#PBF, MAX414CPD+ uniquely combines 28MHz bandwidth, 2.4nV/√Hz noise, and ±2.4V minimum supply in a quad DIP package-making it optimal for wideband, low-voltage, multi-channel precision analog front-ends where noise and speed are co-constrained.
Availability
MAX414CPD+ is available at Aetrix Electronics and suitable for low-noise frequency synthesizers, infrared detector interfaces, high-fidelity audio amplifiers, and bridge signal conditioning requiring stable component supply across industrial temperature ranges and long-lifecycle production.
Supply support for MAX414CPD+ 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 and mixed-signal ICs for industrial, communications, and sensing applications.
The MAX410/MAX412/MAX414 family was designed specifically for precision, low-noise, wideband amplification in low-voltage systems-targeting instrumentation, test equipment, and sensor signal chains where noise, speed, and DC accuracy must coexist.
FAQ
What is the maximum input voltage range for MAX414CPD+?
The MAX414CPD+ supports a common-mode input voltage range of (V+ + 0.3V) to (V− − 0.3V). With ±5V supplies, this translates to −5.3V to +5.3V. For operation within specifications, the input must remain between V− + 1.5V and V+ − 1.5V - i.e., −3.5V to +3.5V - to guarantee linear behavior and avoid saturation. This range is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the MAX414CPD+ datasheet.
Does MAX414CPD+ require external compensation for unity-gain stability?
No, MAX414CPD+ is internally compensated for unity-gain stability. The datasheet explicitly states "unity-gain stability" as a feature and confirms stable operation with 10kΩ || 20pF load under all tested conditions. No external capacitors or resistors are needed for basic unity-gain follower or inverter configurations - verified across 0°C to +70°C and ±2.4V to ±5V supply ranges.
What is the thermal performance of MAX414CPD+ in 14-pin DIP package?
MAX414CPD+ in 14-pin plastic DIP has a continuous power dissipation of 800mW at +70°C ambient, with a derating factor of 10.00mW/°C above that temperature. Junction-to-ambient thermal resistance (θJA) is calculated as 125°C/W. At full 2.5mA per amplifier (10mA total), junction temperature rise is ~1.25°C - well within safe limits for typical board layouts without forced airflow.
Can MAX414CPD+ operate from a single 5V supply?
Yes, MAX414CPD+ supports single-supply operation down to 4.8V total supply (e.g., V+ = 4.8V, V− = 0V). Output swing is specified as ±3.6V into 2kΩ from ±5V, so with 5V/0V supply, expect ~0.4V to ~4.4V output range under load. Input common-mode range extends to V− + 1.5V and V+ − 1.5V - meaning 1.5V to 3.5V is fully functional for AC-coupled or level-shifted inputs.
How does MAX414CPD+ handle capacitive loads?
MAX414CPD+ remains stable driving up to 3900pF in unity-gain voltage-follower configuration, as shown in Figure 6a/b of the datasheet. For loads exceeding 3900pF, an isolation resistor (e.g., 10Ω) must be added in series with the output - a technique validated in Figure 7a/b. This preserves phase margin without degrading DC accuracy when combined with feedback around the resistor (Figure 8).
MAX414CPD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 4.5V/µs
- Gain Bandwidth Product:
- 28 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 80 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 2.5mA (x4 Channels)
- Current - Output / Channel:
- 35 mA
- Voltage - Supply Span (Min):
- 4.8 V
- Voltage - Supply Span (Max):
- 10.5 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX414CPD+ FAQ
1.How can I place an order for MAX414CPD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX414CPD+ 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 MAX414CPD+ reliable?
The price and inventory of MAX414CPD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX414CPD+ is usually 5 days.
3.What payment methods are accepted for MAX414CPD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX414CPD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX414CPD+?
MAX414CPD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX414CPD+ 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 MAX414CPD+?
For technical support, including MAX414CPD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX414CPD+ requirements.
6.How does Aetrix verify that MAX414CPD+ is sourced from the original manufacturer or authorized distributors?
All MAX414CPD+ 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 MAX414CPD+ meets industry standards.
7.What is the process for return or replacement of MAX414CPD+?
All MAX414CPD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX414CPD+, 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 MAX414CPD+ part is unused and in its original packaging.
Return procedure for MAX414CPD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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