My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX674ESA+T
- Part No.:
- MAX674ESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX674ESA+T.pdf
- Description:
- IC VREF SERIES 0.15% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,257
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX674ESA+T from Maxim Integrated is a precision +10V voltage reference IC with ±0.15% initial accuracy, 15ppm/°C temperature coefficient, and 20µVP-P (0.1Hz–10Hz) low-frequency noise. It operates from 13V to 33V input, delivers up to 10mA load current, and is used in high-accuracy data acquisition systems requiring stable analog references.
For engineers reviewing the MAX674ESA+T datasheet, MAX674ESA+T pinout, MAX674ESA+T application, or MAX674ESA+T equivalent, key selection criteria include output trim capability (±300mV), short-circuit protection, load regulation of 0.001%/mA, and narrow SO-8 packaging for space-constrained PCB layouts.
Technical Context
The MAX674ESA+T employs a buried-zener reference core with on-chip trimming for factory-set +10V output, enabling binary-aligned calibration (e.g., 10.240V). Its trim terminal allows fine adjustment without degrading temperature stability beyond +0.7ppm/°C per 100mV shift.
It features internal short-circuit protection, operates over –40°C to +85°C, and maintains 5µs turn-on settling time to ±0.1%. Line regulation is 0.01%/V (13V–33V), and quiescent current is specified at 1.4mA max under no-load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10V ±15mV (±0.15% initial accuracy at TA = +25°C) |
| Tempco | 15ppm/°C max (guaranteed over –40°C to +85°C operating range) |
| Noise (0.1Hz–10Hz) | 20µVP-P (enables sub-16-bit ADC/DAC reference stability) |
| Load Regulation | 0.001%/mA (supports stable output across 0–10mA load variation) |
| Quiescent Current | 1.4mA max (low power consumption for battery-backed instrumentation) |
| Trim Range | ±300mV (allows system-level calibration to 10.240V or other precise targets) |
| Turn-On Settling | 5µs to ±0.1% (fast enable for multiplexed reference switching) |
Pinout & Package
MAX674ESA+T is housed in an 8-pin narrow SO (SOIC-N) surface-mount package, 3.9mm × 4.9mm body size, 1.27mm pitch, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT | Stable +10V reference output; low-impedance source for ADC/DAC biasing |
| 2 | TRIM | Adjustment node for ±300mV output tuning via external potentiometer |
| 3 | GND | Analog ground reference; must be low-impedance, star-connected to minimize noise |
| 4 | N.C. | No connection; internally unconnected; leave floating or grounded per layout best practice |
| 5 | N.C. | No connection; internally unconnected; avoid routing signals nearby |
| 6 | VIN | Positive supply input (13V–33V); includes internal overvoltage protection to 40V |
| 7 | N.C. | No connection; internally unconnected; do not bond or route |
| 8 | N.C. | No connection; internally unconnected; maintain clearance per IPC-2221 |
Key Features
| Feature | Design Value |
|---|---|
| Factory-trimmed +10V output | Eliminates external calibration during production; reduces test time and BOM count |
| Trim terminal with ±300mV range | Enables field or system-level correction for sensor offset, DAC gain error, or board-level drift |
| Short-circuit protected output | Withstands indefinite grounding or VIN short without latch-up or degradation |
| Low 20µVP-P 0.1Hz–10Hz noise | Supports 16-bit+ resolution in precision digital voltmeters and calibration standards |
| 15ppm/°C tempco over –40°C to +85°C | Meets industrial-grade stability requirements without external oven control or compensation |
Applications
| Digital Voltmeter Calibration | A/D Converter Reference |
|---|---|
Use Scenario: Benchtop 6½-digit DVM requiring traceable 10.000V reference for NIST-matched calibration. IC Role / Device Role / Timing Role: Primary voltage reference source for integrating ADC and auto-zero amplifier stages. Use Value: ±15mV initial error and 15ppm/°C tempco ensure <±20ppm total uncertainty over 0–40°C lab environment. | Use Scenario: 16-bit SAR ADC in industrial process controller measuring 4–20mA loop signals. IC Role / Device Role / Timing Role: Precision VREF input for ADC conversion; trimmed to 10.240V for binary full-scale alignment. Use Value: 20µVP-P noise and 5µs settling enable >95dB SNR and fast channel scanning without reference settling delay. |
| Voltage Regulator Feedback | Threshold Detector Reference |
Use Scenario: Programmable lab power supply with adjustable 0–30V output using TL431-based feedback. IC Role / Device Role / Timing Role: Stable 10V reference for op-amp comparator driving TL431 cathode. Use Value: Load regulation of 0.001%/mA ensures output setpoint remains stable despite varying sense resistor currents. | Use Scenario: Overvoltage lockout circuit monitoring 12V rail in automotive ECU with cold-crank tolerance. IC Role / Device Role / Timing Role: Reference input for LM393 comparator comparing against scaled rail voltage. Use Value: Short-circuit protection prevents latch-up during transient faults; –40°C to +85°C rating matches under-hood thermal profile. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF01CPZ | Same pinout, ±0.3% initial accuracy, 25ppm/°C tempco, higher 35µVP-P noise | Lower accuracy and stability; suitable only for 12–14-bit systems | Select REF01CPZ only if cost sensitivity outweighs 16-bit performance needs |
| ADR441BRZ | Pin-incompatible SO-8, ±0.04% initial accuracy, 3ppm/°C tempco, 1.8µVRMS noise | Higher performance but requires PCB redesign and tighter layout controls | Choose ADR441BRZ when metrology-grade stability justifies layout change and budget increase |
Compared with REF01CPZ and ADR441BRZ, the MAX674ESA+T offers optimal balance of pin compatibility, industrial temperature range, and 16-bit-ready noise/stability-without requiring layout revision or premium pricing.
Availability
MAX674ESA+T is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and industrial calibration systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX674ESA+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 precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX674ESA+T belongs to Maxim's precision voltage reference product line, engineered for high-accuracy measurement and calibration systems where initial tolerance, thermal drift, and low-frequency noise are critical design constraints.
FAQ
What is the operating temperature range for the MAX674ESA+T?
The MAX674ESA+T is rated for operation from –40°C to +85°C. This extended industrial temperature range is confirmed in the official Maxim datasheet ordering table and applies specifically to the ESA grade. The device maintains its 15ppm/°C temperature coefficient and ±15mV output tolerance across this full range, making it suitable for deployment in harsh environments such as factory automation controllers and outdoor instrumentation.
Can the MAX674ESA+T be used as a direct replacement for REF01 in existing designs?
Yes, the MAX674ESA+T is explicitly stated as pin-for-pin compatible with REF01 in the datasheet Features section. Both devices use identical SO-8 pinouts and share matching VIN, VOUT, GND, and TRIM/ADJ terminal assignments. No PCB changes are required, though users should verify that the tighter ±0.15% initial accuracy and lower 15ppm/°C tempco of the MAX674ESA+T align with system-level calibration requirements.
What is the maximum load current supported by the MAX674ESA+T?
The MAX674ESA+T supports a maximum load current of 10mA, as specified in the Electrical Characteristics table under "Load Regulation" conditions (IL = 0 to 10mA). This is validated across the full –40°C to +85°C temperature range and input voltages from 13V to 33V. Exceeding 10mA may degrade output regulation or trigger thermal limiting, especially at elevated ambient temperatures.
Does the MAX674ESA+T require an external capacitor on the output for stability?
No, the MAX674ESA+T does not require an external output capacitor for stability. The device is internally compensated and remains stable into purely resistive or capacitive loads up to 1000pF, as confirmed by the Typical Operating Characteristics curves and absence of stability-related recommendations in the datasheet. However, a 100nF ceramic capacitor is recommended near the VOUT pin to reduce high-frequency noise coupling in sensitive measurement circuits.
How is the trim function implemented on the MAX674ESA+T, and what is its adjustment range?
The MAX674ESA+T implements output adjustment via its dedicated TRIM pin (Pin 2), which accepts an external 10kΩ potentiometer between VOUT and GND. This configuration enables ±300mV output tuning around the nominal +10V, allowing precise calibration to values like 10.240V for binary-aligned systems. Adjustment does not significantly impact temperature coefficient-drift increases by only ~0.7ppm/°C per 100mV shift-as verified in the Output Adjustment section of the datasheet.
MAX674ESA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.15%
- Temperature Coefficient:
- 15ppm/°C
- Noise - 0.1Hz to 10Hz:
- 20µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13V ~ 33V
- Current - Supply:
- 1.4mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX674ESA+T FAQ
1.How can I place an order for MAX674ESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX674ESA+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 MAX674ESA+T reliable?
The price and inventory of MAX674ESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX674ESA+T is usually 5 days.
3.What payment methods are accepted for MAX674ESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX674ESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX674ESA+T?
MAX674ESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX674ESA+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 MAX674ESA+T?
For technical support, including MAX674ESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX674ESA+T requirements.
6.How does Aetrix verify that MAX674ESA+T is sourced from the original manufacturer or authorized distributors?
All MAX674ESA+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 MAX674ESA+T meets industry standards.
7.What is the process for return or replacement of MAX674ESA+T?
All MAX674ESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX674ESA+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 MAX674ESA+T part is unused and in its original packaging.
Return procedure for MAX674ESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX674ESA+T Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
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…
