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Analog Devices Inc./Maxim Integrated MAX414BCSD+T
- Part No.:
- MAX414BCSD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX414BCSD+T.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,788
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Product details
Overview
The MAX414BCSD+T 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 MAX414BCSD+T datasheet, MAX414BCSD+T pinout, MAX414BCSD+T application, or MAX414BCSD+T equivalent, key selection considerations include its guaranteed low-noise performance across temperature, quad-channel SO-14 package compatibility, ±250µV max input offset voltage (B-grade), and suitability for precision analog front-ends in measurement and sensor interfaces.
Technical Context
This bipolar-input quad op amp features unity-gain stability, 115dB minimum open-loop voltage gain, and 135dB channel separation at 1kHz - enabling high-fidelity signal conditioning without crosstalk in multi-channel systems. Its design omits input current-limiting resistors to preserve noise performance, relying instead on back-to-back clamp diodes for ±0.1V differential input protection.
It supports low-voltage operation down to ±2.4V with 7.3VP-P output swing into 2kΩ, and maintains 2.5mA per amplifier supply current at ±5V. The B-grade variant guarantees tighter offset voltage (±250µV max) and lower noise (2.4nV/√Hz typ at 1kHz) versus standard grade, validated over 0°C to +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Noise | 2.4nV/√Hz (max) at 1kHz - enables sub-µV-level signal resolution in low-amplitude sensor interfaces. |
| Unity-Gain Bandwidth | 28MHz - supports wideband applications including audio preamps and frequency synthesizer loop filters. |
| Slew Rate | 4.5V/µs - ensures faithful reproduction of fast transients without distortion in pulse-amplification stages. |
| Input Offset Voltage | ±250µV (max) - reduces DC error in precision gain stages and bridge amplifiers without trimming. |
| Supply Voltage Range | ±2.4V to ±5V - allows operation from single 4.8V supplies or dual rails, simplifying power architecture in portable instruments. |
| Channel Count | Quad - integrates four matched amplifiers in one SO-14 package, reducing board area and inter-channel mismatch in multi-sensor systems. |
| Operating Temperature | 0°C to +70°C - qualified for commercial-grade instrumentation and industrial control panels with ambient thermal management. |
Pinout & Package
The MAX414BCSD+T is housed in a 14-pin SOIC (SO-14) package with exposed pad (EP), measuring 8.65mm × 3.90mm × 1.75mm. The exposed paddle must be soldered to V− for rated thermal performance and is not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 10, 14 | Output | Amplifier outputs OUT1–OUT4; rail-to-rail capable swing of ±3.6V into 2kΩ load at ±5V supplies. |
| 2, 6, 9, 13 | Inverting Input | IN1− through IN4−; high common-mode rejection (115dB min) enables accurate differential sensing. |
| 3, 7, 11, 12 | Noninverting Input | IN1+ through IN4+; input bias current ±80nA (typ) minimizes error in high-impedance source interfaces. |
| 4 | Negative Supply | V−; connects to system negative rail; exposed paddle must be tied to this node for thermal compliance. |
| 8 | Positive Supply | V+; accepts ±2.4V to ±5V; PSRR ≥96dB ensures immunity to supply ripple in mixed-signal environments. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low voltage noise | 2.4nV/√Hz (max) at 1kHz - preserves SNR in low-level transducer signals such as thermopiles and strain gauges. |
| B-grade precision | ±250µV max input offset voltage - eliminates need for external nulling in factory-calibrated measurement modules. |
| High channel isolation | 135dB channel separation at 1kHz - prevents signal bleed between channels in multi-axis sensor conditioners. |
| Capacitive-load drive | Stable with up to 3900pF in unity-gain configuration - supports direct connection to ADC input capacitors or long PCB traces. |
| Low supply current | 2.5mA per amplifier at ±5V - enables battery-powered portable instrumentation with extended runtime. |
Applications
| Low-Noise Frequency Synthesizers | Infrared Detectors |
|---|---|
Use Scenario: Loop filter and VCO buffer in PLL-based RF synthesizers requiring minimal phase noise contribution. IC Role / Device Role / Timing Role: Precision op amp providing low-noise, high-bandwidth integration and buffering in feedback path. Use Value: 2.4nV/√Hz noise floor directly limits integrated phase jitter; 28MHz GBW supports fast lock times in narrowband loops. |
Use Scenario: Transimpedance amplification of photodiode current from cooled IR detectors in spectroscopy systems. IC Role / Device Role / Timing Role: Low-noise TIA front-end converting pA-level photocurrent to voltage with minimal added noise. Use Value: Bipolar input enables low input bias current (±80nA typ), critical for high-impedance photodiode biasing without leakage-induced drift. |
| High-Quality Audio Amplifiers | Bridge Signal Conditioning |
Use Scenario: Microphone preamplifier stage in studio-grade audio interfaces demanding THD+N < −90dB at 1kHz. IC Role / Device Role / Timing Role: First-stage gain block with ultra-low voltage noise and high PSRR to reject digital supply coupling. Use Value: 96dB PSRR and 115dB AVOL ensure clean gain without supply-induced hum or clipping artifacts in 24-bit recording paths. |
Use Scenario: Differential amplification of Wheatstone bridge outputs from load cells and pressure sensors. IC Role / Device Role / Timing Role: Quad amplifier implementing matched gain/offset stages for ratiometric bridge readout. Use Value: Tight matching across channels (guaranteed by B-grade binning) minimizes common-mode error and improves bridge linearity to <0.01% FSR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad, low-noise, precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4134UA | FET-input (vs. bipolar); higher input impedance (10¹²Ω), but higher voltage noise (8nV/√Hz). | Better for high-Z sources (e.g., piezoelectric sensors); unsuitable where low voltage noise dominates. | Select when input bias current <1pA is mandatory and voltage noise >5nV/√Hz is acceptable. |
| LT1499IS#PBF | Higher supply current (3.5mA/amplifier); wider supply range (±1.5V to ±18V); 10MHz GBW. | More robust for wide-supply industrial environments, but insufficient bandwidth for >5MHz signal chains. | Choose when extended supply flexibility and rail-to-rail output are needed over noise and speed. |
Compared with OPA4134UA and LT1499IS#PBF, the MAX414BCSD+T uniquely balances ultra-low voltage noise, 28MHz bandwidth, and quad-channel integration in a compact SO-14 package - making it optimal for space-constrained, wideband, low-noise instrumentation where bipolar input characteristics are advantageous.
Availability
MAX414BCSD+T is available at Aetrix Electronics and suitable for low-noise instrumentation amplifiers, infrared detector interfaces, and bridge signal conditioning circuits requiring stable component supply across commercial temperature ranges.
Supply support for MAX414BCSD+T 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) designs high-performance analog and mixed-signal ICs for precision, power, and interface applications.
The MAX410/MAX412/MAX414 family was developed specifically for low-noise, low-voltage, high-speed precision amplification in test equipment, medical instrumentation, and sensor signal chains.
FAQ
What is the maximum input voltage range for the MAX414BCSD+T?
The MAX414BCSD+T 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. However, functional operation requires inputs to remain within V− + 1.5V to V+ − 1.5V - i.e., −3.5V to +3.5V - to avoid saturation or phase reversal. This specification is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet.
Does the MAX414BCSD+T require external compensation for unity-gain stability?
No, the MAX414BCSD+T is internally compensated for unity-gain stability. It remains stable driving capacitive loads up to 3900pF in voltage-follower configuration without external components. This is verified in the Typical Operating Characteristics section (Figure 6a/b) and Applications Information, which explicitly states unity-gain stability as a core feature.
What is the purpose of the exposed paddle on the MAX414BCSD+T SO-14 package?
The exposed paddle on the MAX414BCSD+T SO-14 package is a thermal pad that must be soldered to the V− supply plane - not ground - to achieve rated power dissipation (1482mW at +70°C). It carries no electrical signal and is isolated from all internal circuitry. This requirement is documented in the "TDFN Exposed Paddle Connection" section of the datasheet.
How does the B-grade designation affect the MAX414BCSD+T's performance?
The "B" in MAX414BCSD+T denotes a tighter performance bin: input offset voltage is guaranteed ≤±250µV (vs. ±320µV for standard grade), and input voltage-noise density is 2.4nV/√Hz (typ) at 1kHz. These specifications are validated over 0°C to +70°C and appear in the Electrical Characteristics tables under "MAX414B" rows, confirming enhanced DC precision and noise consistency.
Can the MAX414BCSD+T operate from a single 5V supply?
Yes - the MAX414BCSD+T supports single-supply operation with total supply voltages as low as 4.8V (e.g., 0V to +4.8V). Its input common-mode range extends to V− + 1.5V and output swing reaches within 1.3V–1.4V of each rail into 2kΩ. These capabilities are specified in the "Total Supply Voltage Considerations" section and confirmed in the Electrical Characteristics table for VS = ±2.4V to ±5.25V.
MAX414BCSD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX414BCSD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX414BCSD+T 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+T reliable?
The price and inventory of MAX414BCSD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX414BCSD+T is usually 5 days.
3.What payment methods are accepted for MAX414BCSD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX414BCSD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX414BCSD+T?
MAX414BCSD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX414BCSD+T 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+T?
For technical support, including MAX414BCSD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX414BCSD+T requirements.
6.How does Aetrix verify that MAX414BCSD+T is sourced from the original manufacturer or authorized distributors?
All MAX414BCSD+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX414BCSD+T?
All MAX414BCSD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX414BCSD+T, 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+T part is unused and in its original packaging.
Return procedure for MAX414BCSD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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