My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX407EPA+
- Part No.:
- MAX407EPA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX407EPA+.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:356
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX407EPA+ from Maxim Integrated is a dual, precision, micropower operational amplifier designed for single-supply operation in low-power sensor signal conditioning and battery-powered instrumentation. It features 1.2µA max supply current per amplifier, 150µV max input offset voltage, and rail-to-rail output swing at ±1.25V to ±2.75V supply range. It operates across -40°C to +85°C and is housed in an 8-pin plastic DIP package.
For engineers reviewing the MAX407EPA+ datasheet, MAX407EPA+ pinout, MAX407EPA+ application, or MAX407EPA+ equivalent, key selection criteria include ultra-low quiescent current, guaranteed input offset voltage over temperature, rail-to-rail output drive capability, and compatibility with single-supply microcontroller ADC front-ends in portable medical and environmental monitoring systems.
Technical Context
The MAX407EPA+ belongs to the MAX406/MAX407/MAX409 family of micropower op amps optimized for single-supply operation with rail-to-rail outputs. It integrates two independent amplifiers sharing a common supply and ground, each with internal ESD protection and no phase reversal under overdrive.
Its input stage uses p-channel JFET inputs enabling ultra-low input bias current (1pA typ), while the output stage delivers full rail-to-rail swing into loads ≥10kΩ. The device is specified for operation from +2.5V to +5.5V single supply or ±1.25V to ±2.75V dual supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 1.2µA per amplifier - enables multi-year battery life in always-on sensor nodes. |
| Input Offset Voltage | 150µV max - supports high-accuracy DC-coupled measurements without external trimming. |
| Input Bias Current | 1pA typical - preserves signal integrity in high-impedance pH, photodiode, or piezoelectric sensor interfaces. |
| Output Swing | Rail-to-rail - maximizes dynamic range when driving 12-bit ADCs directly from 3.3V or 5V supplies. |
| Supply Range | +2.5V to +5.5V single supply - compatible with standard logic rails and Li-ion/Li-Po battery voltages. |
| Temperature Range | -40°C to +85°C - qualified for industrial and extended commercial environments. |
| Gain-Bandwidth Product | 10kHz - suitable for DC to low-frequency (<1kHz) signal conditioning, not high-speed applications. |
Pinout & Package
MAX407EPA+ is supplied in an 8-pin plastic DIP (dual in-line package), designated P8-1 per Maxim's package documentation (Doc. No. 21-0043). This through-hole package supports manual prototyping and legacy PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier A output - drives external load or ADC input with rail-to-rail swing. |
| 2 | IN– A | Inverting input of amplifier A - high-impedance node for feedback network connection. |
| 3 | IN+ A | Noninverting input of amplifier A - accepts low-current sensor signals with minimal loading. |
| 4 | GND | Analog ground reference - must be tied to system ground plane with low-inductance path. |
| 5 | IN+ B | Noninverting input of amplifier B - electrically isolated from amplifier A inputs. |
| 6 | IN– B | Inverting input of amplifier B - used for independent second channel gain/feedback configuration. |
| 7 | OUT B | Amplifier B output - provides second signal path without cross-talk or shared biasing. |
| 8 | V+ | Positive supply rail - accepts +2.5V to +5.5V; no negative supply required for single-supply operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 1.2µA per amplifier enables >10-year operation on CR2032 coin cell in wake-sleep sensor systems. |
| Rail-to-rail output | Delivers full 0V to V+ swing into ≥10kΩ loads, preserving 12-bit ADC resolution without level-shifting circuitry. |
| p-Channel JFET input stage | 1pA typical input bias current prevents signal degradation in megohm-range sensor interfaces (e.g., thermistors, strain gauges). |
| No phase reversal | Guaranteed stable behavior during input overdrive - eliminates latch-up risk in unbuffered transducer interfaces. |
| Specified over -40°C to +85°C | Validated performance across industrial temperature range without derating or external compensation. |
Applications
| Portable ECG Front-End | Wireless Temperature Node |
|---|---|
Use Scenario: Amplifying low-amplitude, high-impedance biopotential signals from dry electrodes in battery-powered wearable ECG monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation front-end amplifier providing gain and DC coupling before 12-bit SAR ADC sampling. Use Value: 1.2µA per amplifier extends coin-cell lifetime beyond 2 years; rail-to-rail output ensures full ADC code utilization at 3.3V supply. | Use Scenario: Conditioning analog output from thermistor or RTD bridges in LoRaWAN-enabled environmental sensors deployed outdoors. IC Role / Device Role / Timing Role: Precision buffer and gain stage interfacing passive resistive sensors to ultra-low-power MCU ADC. Use Value: 150µV max input offset minimizes calibration drift over -40°C to +85°C; 1pA input bias avoids self-heating errors in high-Z bridge arms. |
| Industrial Pressure Transmitter | Low-Power Gas Detector |
Use Scenario: Signal conditioning for millivolt-level output from silicon piezoresistive pressure sensors in 4–20mA loop-powered transmitters. IC Role / Device Role / Timing Role: Dual op amp configured as differential input stage and output buffer in analog signal chain. Use Value: Single +5V supply operation simplifies power architecture; no phase reversal prevents output latch-up during transient overvoltage events. | Use Scenario: Amplifying current-mode output from electrochemical gas sensors operating in pulsed-bias mode to extend battery life. IC Role / Device Role / Timing Role: Transimpedance amplifier and post-gain stage for low-current sensor signals. Use Value: Ultra-low input bias current preserves sensor linearity; micropower consumption allows 10-second active measurement cycles with 99% sleep duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV358IDR | Higher supply current (80µA per amp), wider GBW (1MHz), but no guaranteed 150µV Vos over temp. | Better for higher-frequency AC-coupled apps; less suitable for precision DC sensor conditioning at <1µA budget. | Select LMV358IDR only if bandwidth >10kHz is required and Vos drift tolerance exceeds ±500µV. |
| TSV622IST | Lower supply current (280nA), rail-to-rail I/O, but limited Vos spec (3.5mV max) and narrower supply range (1.5–5.5V). | Superior for nanoamp-level battery life; compromised DC accuracy limits use in calibrated measurement paths. | Choose TSV622IST when lowest possible current dominates over offset-critical performance. |
Compared with LMV358IDR and TSV622IST, the MAX407EPA+ uniquely balances sub-2µA current, guaranteed 150µV Vos over temperature, and rail-to-rail output - making it optimal for precision, long-life, single-supply sensor interfaces where both accuracy and energy efficiency are non-negotiable.
Availability
MAX407EPA+ is available at Aetrix Electronics and suitable for portable medical devices, wireless environmental sensors, and industrial loop-powered transmitters requiring stable component supply and long-term manufacturability.
Supply support for MAX407EPA+ 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 demanding industrial, medical, and communications applications.
The MAX406/MAX407/MAX409 family was engineered specifically for ultra-low-power, single-supply signal conditioning in battery-constrained and high-impedance sensor systems.
FAQ
What is the maximum supply voltage for MAX407EPA+?
The MAX407EPA+ operates from a single supply of +2.5V to +5.5V or dual supplies of ±1.25V to ±2.75V. Exceeding +5.5V on V+ may cause permanent damage. The absolute maximum rating is +6.0V, but functional operation is only guaranteed within the specified range. Always refer to the MAX407EPA+ datasheet Section 6 for stress ratings and derating guidance.
Does MAX407EPA+ support rail-to-rail input?
No, the MAX407EPA+ features rail-to-rail *output* swing but does not have rail-to-rail *input*. Its input common-mode range extends to V– (GND) but only up to V+ – 1.2V. For true rail-to-rail input capability, consider alternatives like the MAX4475 or MAX4238. The MAX407EPA+ input stage is optimized for low bias current, not wide common-mode range.
Is MAX407EPA+ pin-compatible with other devices in the MAX406/MAX407 family?
Yes, all 8-pin variants in the MAX406/MAX407/MAX409 family-including MAX407EPA+, MAX407CPA, and MAX407ESA-share identical pinouts in their respective packages (e.g., all P8-1 DIP versions are pin-compatible). However, temperature grade and package type (DIP vs. SO) must match mechanical and thermal requirements. Always verify the specific variant's ordering code before substitution.
Can MAX407EPA+ drive capacitive loads?
The MAX407EPA+ is not unity-gain stable with capacitive loads >100pF. Driving larger capacitive loads (e.g., long cables or ADC input capacitance) requires isolation via a series resistor (≥1kΩ) or external compensation. Stability testing under actual layout conditions is recommended. The MAX407EPA+ datasheet Figure 9 shows phase margin degradation above 50pF without compensation.
What is the typical input offset voltage drift over temperature for MAX407EPA+?
The MAX407EPA+ has a typical input offset voltage drift of 0.5µV/°C over the -40°C to +85°C range. This low drift, combined with its 150µV max initial Vos, ensures minimal total error accumulation in precision DC applications such as thermistor linearization or bridge amplifier circuits across industrial temperature extremes.
MAX407EPA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 Channels)
- Current - Output / Channel:
- 600 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 10 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX407EPA+ FAQ
1.How can I place an order for MAX407EPA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX407EPA+ 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 MAX407EPA+ reliable?
The price and inventory of MAX407EPA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX407EPA+ is usually 5 days.
3.What payment methods are accepted for MAX407EPA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX407EPA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX407EPA+?
MAX407EPA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX407EPA+ 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 MAX407EPA+?
For technical support, including MAX407EPA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX407EPA+ requirements.
6.How does Aetrix verify that MAX407EPA+ is sourced from the original manufacturer or authorized distributors?
All MAX407EPA+ 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 MAX407EPA+ meets industry standards.
7.What is the process for return or replacement of MAX407EPA+?
All MAX407EPA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX407EPA+, 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 MAX407EPA+ part is unused and in its original packaging.
Return procedure for MAX407EPA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX407EPA+ 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…
