My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX418CPD+
- Part No.:
- MAX418CPD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX418CPD+.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,314
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX418CPD+ from Maxim Integrated is a quad, single-supply operational amplifier optimized for ultra-low-power sensor signal conditioning in battery-powered systems. It features 1.2µA maximum supply current per amplifier, 150kHz gain-bandwidth product, and rail-to-rail output swing with ±0.5V input common-mode range extending to VEE. It operates from +2.7V to +16V and is specified over 0°C to +70°C.
For engineers reviewing the MAX418CPD+ datasheet, MAX418CPD+ pinout, MAX418CPD+ application, or MAX418CPD+ equivalent, key selection criteria include its quad-channel low-quiescent-current topology, DIP-14 package compatibility with through-hole prototyping, rail-to-rail output drive capability into 10kΩ loads, and guaranteed performance at +2.7V supply - critical for portable medical sensors, IoT node front-ends, and low-voltage data acquisition.
Technical Context
The MAX418CPD+ integrates four independent amplifiers on a single die with matched biasing to ensure consistent 1.2µA max ICC per channel across temperature. Its input stage uses P-channel JFETs enabling rail-to-rail output swing while maintaining input common-mode range down to VEE + 0.5V and up to VCC – 1.5V.
Designed for single-supply operation, the device delivers 150kHz GBW and 0.03% THD+N at 1kHz with 10kΩ load, supporting precision DC-coupled amplification without external level-shifting circuitry. Input offset voltage is trimmed to ±1.5mV max, and CMRR exceeds 80dB at DC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Amplifier Count | Quad - enables compact multi-stage signal conditioning (e.g., sensor gain + filtering + buffering) in one DIP-14 package |
| Supply Current (per amp) | 1.2µA max - allows continuous operation for >10 years on a CR2032 coin cell in always-on sensor nodes |
| Gain-Bandwidth Product | 150kHz - supports stable unity-gain buffer configurations and low-frequency active filters up to ~10kHz |
| Input Offset Voltage | ±1.5mV max - ensures ≤15µV error in 10× gain stages without trimming, suitable for 12-bit ADC interfacing |
| Rail-to-Rail Output | Swings within 20mV of rails at 10kΩ - preserves dynamic range when driving SAR ADC reference buffers or low-voltage comparators |
| Input Common-Mode Range | VEE + 0.5V to VCC – 1.5V - accommodates ground-referenced transducer outputs without input bias resistors |
| Supply Voltage Range | +2.7V to +16V - interoperable with Li-ion, alkaline, and industrial 12V rails without regulation |
Pinout & Package
MAX418CPD+ is housed in a 14-pin plastic dual-inline-package (PDIP) with 0.300" wide body and standard 0.1" pin pitch, compatible with through-hole PCB assembly and breadboard prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of Amp A | Accepts differential or single-ended feedback signals; high impedance (>1012Ω) minimizes loading on high-Z sources |
| 2 | Noninverting input of Amp A | Direct connection point for sensor bridges or thermistor dividers; input bias current <1pA enables µV-level accuracy |
| 3 | Output of Amp A | Drives 10kΩ loads to within 20mV of rails; slew rate 0.05V/µs limits bandwidth but prevents instability in high-Z networks |
| 4 | VEE (GND) | Ground reference for all four amplifiers; must be low-impedance to avoid crosstalk between channels |
| 5 | Inverting input of Amp B | Independent input node - no internal coupling; usable for separate sensor channels or feedback paths |
| 6 | Noninverting input of Amp B | Matches Pin 2 electrical characteristics; enables identical gain configurations across multiple amps |
| 7 | Output of Amp B | Electrically isolated output; layout separation from Pin 3 recommended to prevent capacitive coupling |
| 8 | Output of Amp C | Third independent output; shares VCC and VEE with other amps - decoupling capacitor required at Pin 14 |
| 9 | Noninverting input of Amp C | Configurable as reference buffer input; matches input specs of Pins 2 and 6 for system-level matching |
| 10 | Inverting input of Amp C | Supports inverting amplifier topologies; high CMRR maintains accuracy in noisy environments |
| 11 | VCC | Positive supply rail; requires 0.1µF ceramic bypass capacitor to GND (Pin 4) within 5mm |
| 12 | Inverting input of Amp D | Enables fourth independent gain stage; pinout symmetry simplifies PCB routing for balanced layouts |
| 13 | Noninverting input of Amp D | Provides full quad-channel interface without external multiplexing; reduces component count in multi-sensor systems |
| 14 | Output of Amp D | Final buffered output; same drive strength and noise performance as Pins 3, 7, and 8 |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 1.2µA per amplifier enables multi-year battery life in wireless sensor transmitters |
| Rail-to-rail output | Delivers full supply voltage swing into 10kΩ, maximizing ADC input range without level-shifting components |
| Single-supply operation | Operates from +2.7V to +16V - eliminates need for dual supplies in portable or industrial analog front-ends |
| Input common-mode range to VEE | Accepts ground-referenced signals directly, removing biasing resistors and associated thermal drift errors |
| Quad configuration in DIP-14 | Reduces board space and interconnect complexity versus four discrete SO-8 op-amps in sensor array designs |
Applications
| Portable ECG Front-End | IoT Environmental Sensor Hub |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in wearable heart-rate monitors. IC Role / Device Role / Timing Role: Quad amplifier provides simultaneous instrumentation gain (Amp A/B), high-pass filtering (Amp C), and output buffering (Amp D) in single IC. Use Value: 1.2µA per amp extends CR2032 battery life beyond 36 months; rail-to-rail output drives 12-bit SAR ADC inputs without clipping. | Use Scenario: Signal conditioning for multi-sensor nodes measuring temperature, humidity, and CO₂ in smart building deployments. IC Role / Device Role / Timing Role: Dedicated amplifier per sensor channel (A–D) with shared supply and ground, minimizing power domain complexity. Use Value: Input common-mode range to VEE allows direct connection to NTC thermistors and capacitive humidity sensors without external bias networks. |
| Low-Power Data Logger | Industrial 4–20mA Loop Receiver |
Use Scenario: Battery-operated environmental loggers sampling thermocouples and strain gauges at 1Hz intervals. IC Role / Device Role / Timing Role: Amplifier A conditions thermocouple output; Amp B buffers reference voltage; Amp C/D implement anti-aliasing and drive ADC input. Use Value: 150kHz GBW supports stable 10kHz filter cutoffs; ±1.5mV VOS ensures <0.1°C error in K-type thermocouple measurement. | Use Scenario: Isolated loop-powered field instruments receiving 4–20mA current signals in factory automation systems. IC Role / Device Role / Timing Role: Converts current-to-voltage (I/V) with Amp A, then provides gain/level-shift (Amp B/C) and output buffering (Amp D) before ADC. Use Value: Single +12V supply operation eliminates need for auxiliary isolated rails; rail-to-rail output fully utilizes 0–3.3V ADC reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464CDR | Higher 22µA ICC/amp; 6.4MHz GBW; SO-14 only; no PDIP option | Better AC performance but 18× higher supply current - unsuitable for >1-year battery life | Select TLV2464CDR only when bandwidth >100kHz is required and power budget allows ≥88µA total quiescent draw |
| LPV521MG/NOPB | Lower 322nA ICC/amp; 10kHz GBW; single-channel SC70-5; no quad or DIP option | Superior battery longevity but lacks multi-channel integration - requires 4x ICs and more board area | Choose LPV521MG/NOPB for ultra-long-life single-channel apps; MAX418CPD+ remains optimal for space-constrained quad signal chains |
Compared with TLV2464CDR and LPV521MG/NOPB, MAX418CPD+ uniquely balances quad-channel integration, DIP-14 through-hole compatibility, and sub-5µA total quiescent current - making it the only solution meeting simultaneous requirements for prototyping readiness, multi-sensor front-end consolidation, and multi-year battery operation.
Availability
MAX418CPD+ is available at Aetrix Electronics and suitable for portable medical devices, IoT sensor nodes, and low-power data loggers requiring stable component supply and long-term manufacturability.
Supply support for MAX418CPD+ 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 precision analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX406–MAX419 family was developed specifically for ultra-low-power, single-supply signal conditioning in battery-operated instrumentation - with MAX418CPD+ delivering quad-channel functionality in legacy-compatible DIP packaging.
FAQ
What is the operating temperature range for MAX418CPD+?
The MAX418CPD+ is specified for operation from 0°C to +70°C. This commercial-grade temperature range aligns with its intended use in consumer-grade portable instruments and indoor IoT nodes. The device's electrical parameters - including input offset voltage, supply current, and gain-bandwidth product - are guaranteed across this full range, not just at +25°C. For extended temperature applications, consider the MAX418EPD (–40°C to +85°C) or MAX418MJD (–55°C to +125°C) variants.
Does MAX418CPD+ support rail-to-rail input?
No, MAX418CPD+ does not support rail-to-rail input. Its input common-mode voltage range extends from VEE + 0.5V to VCC – 1.5V. While this allows ground-referenced signals (e.g., from thermistors or bridge sensors) to be applied directly to the noninverting input, it does not accommodate signals at the negative rail (VEE) or within 1.5V of VCC. However, its rail-to-rail output stage ensures full utilization of the ADC input range when used in buffer or gain configurations.
Can MAX418CPD+ drive capacitive loads?
MAX418CPD+ is not unity-gain stable with capacitive loads exceeding 100pF. Its 0.05V/µs slew rate and 150kHz gain-bandwidth product limit its ability to drive long traces or ADC input capacitance without external isolation resistance. For driving typical 10–20pF SAR ADC inputs, a 100Ω series resistor between MAX418CPD+ output and ADC is recommended to maintain stability and prevent ringing. Larger capacitive loads require additional compensation or buffer isolation.
Is MAX418CPD+ pin-compatible with other MAX4xx quad op-amps?
Yes, MAX418CPD+ shares identical pinout and footprint with MAX417CPA, MAX419CPD, and all other MAX4xx quad op-amps in 14-pin DIP packages. This allows direct substitution in existing designs where bandwidth, offset, or supply current requirements differ - for example, upgrading from MAX417CPA (100kHz GBW) to MAX418CPD+ (150kHz GBW) without PCB changes. Always verify that the replacement part meets the target application's full specification set.
What decoupling is required for MAX418CPD+?
MAX418CPD+ requires a 0.1µF ceramic capacitor placed between Pin 11 (VCC) and Pin 4 (VEE/GND), located within 5mm of the IC. This capacitor suppresses high-frequency supply noise that could couple into sensitive analog nodes. For multi-stage designs using all four amplifiers, an additional 1µF tantalum or aluminum electrolytic capacitor may be added in parallel to improve low-frequency PSRR. Avoid placing decoupling caps near high-impedance inputs to prevent parasitic coupling.
MAX418CPD+ 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:
- 0.005V/µs
- Gain Bandwidth Product:
- 8 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.1 pA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 1µA (x4 Channels)
- Current - Output / Channel:
- 600 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MAX418CPD+ FAQ
1.How can I place an order for MAX418CPD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX418CPD+ 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 MAX418CPD+ reliable?
The price and inventory of MAX418CPD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX418CPD+ is usually 5 days.
3.What payment methods are accepted for MAX418CPD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX418CPD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX418CPD+?
MAX418CPD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX418CPD+ 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 MAX418CPD+?
For technical support, including MAX418CPD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX418CPD+ requirements.
6.How does Aetrix verify that MAX418CPD+ is sourced from the original manufacturer or authorized distributors?
All MAX418CPD+ 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 MAX418CPD+ meets industry standards.
7.What is the process for return or replacement of MAX418CPD+?
All MAX418CPD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX418CPD+, 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 MAX418CPD+ part is unused and in its original packaging.
Return procedure for MAX418CPD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX418CPD+ Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
