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Analog Devices Inc./Maxim Integrated MAX414BCSD+
- Part No.:
- MAX414BCSD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX414BCSD+.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,605
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Product details
Overview
MAX414BCSD+ from Maxim Integrated is a quad, precision, low-noise operational amplifier optimized for high-speed, low-voltage instrumentation and measurement 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 and consuming only 2.5mA per amplifier. It is used in ultra-low-noise instrumentation amplifiers and bridge signal conditioning circuits.
For engineers reviewing the MAX414BCSD+ datasheet, MAX414BCSD+ pinout, MAX414BCSD+ application, or MAX414BCSD+ equivalent, key selection considerations include its guaranteed 2.4nV/√Hz noise floor at 1kHz, ±250µV max input offset voltage (B-grade), 14-pin SO package footprint, and operation across 0°C to +70°C industrial temperature range.
Technical Context
The MAX414BCSD+ employs a bipolar input stage engineered for optimal trade-off between voltage noise, current noise, and DC accuracy - achieving sub-2.5nV/√Hz noise without sacrificing input bias current (±150nA typ) or CMRR (115dB min). Its unity-gain stability and 28MHz bandwidth support wideband closed-loop configurations up to gain = 10 without compensation.
Designed for ±5V operation with 7.3VP-P output swing into 2kΩ, it maintains full performance down to ±2.4V supplies. The B-grade variant guarantees tighter offset voltage (±250µV max) and lower noise (2.4nV/√Hz max at 1kHz) versus standard grade, making it suitable for precision DC-coupled and AC-coupled low-noise signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Voltage Noise Density | 2.4nV/√Hz (max) at 1kHz - enables detection of µV-level signals in high-gain sensor front-ends |
| Unity-Gain Bandwidth | 28MHz - supports stable amplification of signals up to ~10MHz with gain ≥ 2 |
| Slew Rate | 4.5V/µs - ensures <1.3µs settling to 0.1% for 7V step, critical for fast pulse conditioning |
| Input Offset Voltage | ±250µV (max) - reduces DC error in precision differential amplifiers and strain gauge bridges |
| Supply Current | 2.5mA per amplifier - allows four-channel operation within 10mA total, easing thermal management |
| CMRR | 115dB (min) - rejects common-mode interference in noisy industrial environments |
| Operating Supply | ±2.4V to ±5V - compatible with legacy ±5V rails and modern low-voltage analog subsystems |
Pinout & Package
MAX414BCSD+ is housed in a 14-pin SO (Small Outline) package with exposed pad (no thermal pad connection required for standard operation). Pin 1 is marked via notch or dot; pin numbering follows standard SO convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | OUT1–OUT4 | Amplifier outputs - each drives 2kΩ load to ±3.6V with ±5V supplies |
| 2, 6, 10, 14 | IN1– IN4− | Inverting inputs - high-impedance bipolar nodes; require matched source impedances for noise optimization |
| 3, 7, 11, 12 | IN1+ – IN4+ | Noninverting inputs - same topology as inverting inputs; enable differential or single-ended configurations |
| 4 | V− | Negative supply rail - must be connected to system ground reference or negative rail; exposed paddle (if present) ties to V− |
| 8 | V+ | Positive supply rail - decoupling capacitor (0.1µF ceramic) required within 5mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar architecture | 2.4nV/√Hz (max) at 1kHz - achieves best-in-class voltage noise without JFET trade-offs in speed or PSRR |
| B-grade precision trimming | ±250µV max input offset voltage - eliminates need for external nulling in many 16-bit data acquisition designs |
| Wide supply flexibility | ±2.4V to ±5V operation - supports both legacy ±5V and energy-efficient ±2.4V systems without performance loss |
| Capacitive-load drive capability | Stable with up to 3900pF in unity-gain follower - simplifies anti-alias filter integration without isolation resistors |
| High channel separation | 135dB at 1kHz - prevents crosstalk between channels in multi-sensor synchronous sampling |
Applications
| Low-Noise Frequency Synthesizers | Infrared Detectors |
|---|---|
Use Scenario: Amplifying low-amplitude IF signals in PLL-based synthesizer loop filters and VCO tuning paths. IC Role / Device Role / Timing Role: Low-noise transimpedance and buffer amplifier for phase detector outputs and tuning voltage conditioning. Use Value: 2.4nV/√Hz noise floor minimizes phase jitter contribution; 28MHz bandwidth supports fast lock times in sub-GHz synthesizers. |
Use Scenario: Front-end amplification of photodiode current from cooled IR detectors in spectroscopy systems. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with low input bias current (±150nA typ) and high CMRR. Use Value: Bipolar input preserves linearity at low photocurrents; 115dB CMRR rejects EMI from cryo-cooler switching noise. |
| High-Quality Audio Amplifiers | Bridge Signal Conditioning |
Use Scenario: Microphone preamplification and line-driver stages in studio-grade audio interfaces. IC Role / Device Role / Timing Role: Low-distortion, low-noise gain block with THD+N < −94dB at 1kHz (7VP-P). Use Value: 4.5V/µs slew rate prevents slew-induced distortion on transient-rich audio waveforms; 135dB channel separation avoids stereo crosstalk. |
Use Scenario: Amplifying differential output from Wheatstone bridge sensors (e.g., load cells, pressure transducers). IC Role / Device Role / Timing Role: Instrumentation-grade quad amplifier enabling simultaneous excitation, sensing, and ratiometric correction. Use Value: Matched quad topology ensures consistent gain/offset across channels; ±250µV max VOS enables <0.01% bridge error without calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, quad op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OP482ARZ | Higher noise (3.5nV/√Hz), lower bandwidth (10MHz), but superior PSRR (120dB) and rail-to-rail output | Better suited for single-supply, battery-powered sensor nodes where PSRR dominates over noise | Select OP482ARZ when supply rejection > noise performance and rail-to-rail swing are mandatory |
| LT1499IS#PBF | Lower noise (1.9nV/√Hz), higher supply current (3.5mA/amplifier), no B-grade option; SO-14 pinout differs (pin 1 = OUT1 vs. MAX414's pin 1 = OUT1) | Preferred for ultra-low-noise medical EEG front-ends where 1.9nV/√Hz justifies extra power and cost | Select LT1499IS#PBF only if 0.5nV/√Hz improvement outweighs 40% higher quiescent current and lack of guaranteed B-grade specs |
Compared with OP482ARZ and LT1499IS#PBF, MAX414BCSD+ uniquely balances 2.4nV/√Hz noise, 28MHz bandwidth, and 2.5mA/amplifier supply current in a drop-in SO-14 package - making it optimal for space-constrained, multi-channel instrumentation where thermal budget and board area are critical.
Availability
MAX414BCSD+ is available at Aetrix Electronics and suitable for low-noise instrumentation, infrared detection, and precision bridge signal conditioning requiring stable component supply across industrial temperature ranges.
Supply support for MAX414BCSD+ 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 U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for industrial, communications, and computing markets.
The MAX410/MAX412/MAX414 family was designed specifically for precision, low-noise signal conditioning in high-speed, low-voltage systems - targeting applications where voltage noise, bandwidth, and DC accuracy must coexist without compromise.
FAQ
What is the maximum input voltage range for MAX414BCSD+?
The MAX414BCSD+ supports a common-mode input voltage range of (V+ + 0.3V) to (V− − 0.3V), with guaranteed operation from ±3.5V when powered from ±5V supplies. At ±2.4V supplies, the usable common-mode range narrows to ±2.1V. This specification is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official MAX414 datasheet, ensuring reliable operation in both dual- and single-supply configurations.
Does MAX414BCSD+ require external offset nulling?
No, MAX414BCSD+ does not require external offset nulling under typical conditions. Its B-grade specification guarantees a maximum input offset voltage of ±250µV at +25°C and ±400µV over the full 0°C to +70°C operating range - sufficient for most 16-bit precision applications. While an optional null circuit exists (per Figure 9 in the datasheet), it is rarely needed unless sub-100µV residual offset is required after system-level calibration.
Can MAX414BCSD+ drive a 10kΩ load with full output swing?
Yes, MAX414BCSD+ delivers ±3.7V output swing into a 10kΩ load with ±5V supplies - exceeding its specified ±3.6V minimum into 2kΩ. The datasheet confirms that output voltage swing improves with lighter loads; at 10kΩ, the device achieves near-rail performance due to reduced I×R drop across internal output transistors. This makes MAX414BCSD+ well-suited for driving ADC reference buffers and high-impedance filter networks.
Is MAX414BCSD+ pin-compatible with other MAX41x quad op amps?
Yes, MAX414BCSD+ is fully pin-compatible with all 14-pin SO variants in the MAX414 family (e.g., MAX414CSD, MAX414ESD) and shares identical pinout with industry-standard quad op amp footprints. Pin 1 = OUT1, pins 2/6/10/14 = IN−, pins 3/7/11/12 = IN+, pin 4 = V−, pin 8 = V+. No PCB layout changes are required when upgrading from C-grade or E-grade 14-pin SO versions.
What is the thermal performance of MAX414BCSD+ in SO-14 package?
MAX414BCSD+ in the 14-pin SO package has a thermal resistance θJA of 8.33mW/°C above +70°C, supporting 667mW continuous power dissipation at +70°C ambient. With 2.5mA per amplifier × 4 = 10mA total supply current and ±5V rails, power dissipation remains ~100mW - well below thermal limits. Derating begins at +70°C, allowing safe operation up to +85°C ambient when airflow or copper pour is applied.
MAX414BCSD+ 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX414BCSD+ FAQ
1.How can I place an order for MAX414BCSD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX414BCSD+ 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 MAX414BCSD+ reliable?
The price and inventory of MAX414BCSD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX414BCSD+ is usually 5 days.
3.What payment methods are accepted for MAX414BCSD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX414BCSD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX414BCSD+?
MAX414BCSD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX414BCSD+ 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 MAX414BCSD+?
For technical support, including MAX414BCSD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX414BCSD+ requirements.
6.How does Aetrix verify that MAX414BCSD+ is sourced from the original manufacturer or authorized distributors?
All MAX414BCSD+ 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 MAX414BCSD+ meets industry standards.
7.What is the process for return or replacement of MAX414BCSD+?
All MAX414BCSD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX414BCSD+, 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 MAX414BCSD+ part is unused and in its original packaging.
Return procedure for MAX414BCSD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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