My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX674CSA+
- Part No.:
- MAX674CSA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX674CSA+.pdf
- Description:
- IC VREF SERIES 10V 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,641
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX674CSA+ from Maxim Integrated is a precision +10V voltage reference IC with ±0.15% initial accuracy, 12ppm/°C temperature coefficient, and 20µVP-P (0.1Hz–10Hz) low-frequency noise, designed for high-accuracy analog signal conditioning in A/D and D/A converters.
For engineers reviewing the MAX674CSA+ datasheet, MAX674CSA+ pinout, MAX674CSA+ application, or MAX674CSA+ equivalent, key selection considerations include output trim capability (±300mV), load regulation of 0.001%/mA, short-circuit protection, and narrow SO-8 package compatibility with REF01 footprints.
Technical Context
The MAX674CSA+ uses a bandgap-based reference core with on-chip trimming to achieve ±15mV (±0.15%) initial output tolerance at +10V. Its temperature stability is guaranteed via the "box method" measurement across 0°C to +70°C.
It supports adjustable output (±300mV via external resistor at TRIM pin) without degrading temperature performance significantly-coefficient shift is ~0.7ppm/°C per 100mV adjustment. Input voltage range is 13V to 33V, with turn-on settling time of 5µs to ±0.1%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10V ±15mV (±0.15%) at 0mA load, enabling direct use in 10-bit+ ADC/DAC calibration |
| Tempco | 12ppm/°C max (0°C to +70°C), ensuring ≤1.2mV drift over full operating range |
| Noise (0.1–10Hz) | 20µVP-P, critical for low-drift digital voltmeter front-ends |
| Load Regulation | 0.001%/mA, supporting stable reference under varying DAC sink currents up to 10mA |
| Quiescent Current | 750–1400µA, allowing low-power portable instrumentation designs |
| Trim Range | ±300mV via external potentiometer, enabling binary-aligned outputs like 10.240V |
| Short-Circuit Duration | Indefinite (to GND or VIN), permitting robust operation in fault-prone industrial sensor interfaces |
Pinout & Package
MAX674CSA+ is housed in an 8-pin narrow SO (SOIC-N) surface-mount package, 3.9mm × 4.9mm body, 1.75mm height, with standard 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground (GND) | Reference return path; must be low-impedance to minimize noise coupling into VOUT |
| 2 | VIN | Positive input supply (13–33V); internal regulator enables stable 10V output despite input variation |
| 3 | N.C. | No connection; electrically isolated, no internal bond wire |
| 4 | N.C. | No connection; electrically isolated, no internal bond wire |
| 5 | TRIM | Adjustment terminal; connects to external 10kΩ potentiometer for ±300mV output tuning |
| 6 | VOUT | Stable +10V reference output; capable of sourcing/sinking up to 30mA short-circuit current |
| 7 | N.C. | No connection; electrically isolated, no internal bond wire |
| 8 | N.C. | No connection; electrically isolated, no internal bond wire |
Key Features
| Feature | Design Value |
|---|---|
| Pretrimmed +10V output | Eliminates need for external calibration resistors in production test fixtures |
| Low 20µVP-P noise (0.1–10Hz) | Enables sub-16-bit effective resolution in precision digital multimeters |
| Indefinite short-circuit protection | Permits safe integration into systems with relay-driven loads or ESD-prone sensor nodes |
| 0.001%/mA load regulation | Maintains <10µV error change per 1mA DAC load shift, critical for ratiometric sensor bridges |
| Pin-for-pin compatible with REF01 | Allows drop-in replacement in legacy REF01-based designs without PCB rework |
Applications
| A/D Converters | D/A Converters |
|---|---|
Use Scenario: High-resolution data acquisition system digitizing ±10V industrial sensor signals. IC Role / Device Role / Timing Role: Primary voltage reference for 16-bit successive-approximation ADC, defining full-scale range. Use Value: 12ppm/°C tempco ensures <±2 LSB drift over 0°C–70°C ambient, meeting EN 61000-6-4 thermal stability requirements. | Use Scenario: Programmable voltage source generating calibrated ±10V outputs for actuator control. IC Role / Device Role / Timing Role: Reference for multiplying DAC (e.g., AD7541), setting absolute output scale. Use Value: ±300mV trim range allows precise alignment to 10.240V for binary-weighted DAC codes, reducing firmware compensation. |
| Digital Voltmeters | Voltage Regulators |
Use Scenario: Bench-grade 5½-digit DVM measuring DC voltages from 100mV to 100V. IC Role / Device Role / Timing Role: Internal reference for dual-slope integrator and auto-zero amplifier stages. Use Value: 20µVP-P low-frequency noise directly limits RMS noise floor to <3.5µV, enabling 0.002% reading accuracy. | Use Scenario: Precision +10V auxiliary supply for op-amp biasing in low-noise instrumentation amplifiers. IC Role / Device Role / Timing Role: Stable reference input to tracking pre-regulator circuit controlling pass transistor gate. Use Value: Load regulation of 0.001%/mA ensures <10µV output shift when powering 5mA op-amp quiescent current, preserving gain accuracy. |
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 +10V nominal output, ±0.3% initial accuracy (vs. ±0.15%), 25ppm/°C tempco (vs. 12ppm/°C), higher 35µVP-P noise | Lacks TRIM pin; not adjustable; requires external calibration for binary-aligned outputs | Select REF01CPZ only if cost sensitivity outweighs accuracy and adjustability needs |
| ADR02ARZ | +10V output, ±0.1% initial accuracy, 3ppm/°C tempco, but 10µVP-P noise and 1.2mA quiescent current; SO-8 package | Higher precision and lower noise, but no output trim capability and incompatible pinout (TRIM function absent) | Choose ADR02ARZ when ultra-low tempco is mandatory and trim is unnecessary |
Compared with REF01CPZ and ADR02ARZ, the MAX674CSA+ uniquely combines factory-trimmed ±0.15% accuracy, 12ppm/°C stability, adjustable output, and REF01-compatible pinout-making it optimal for upgrading legacy REF01 designs requiring tighter specs without layout changes.
Availability
MAX674CSA+ is available at Aetrix Electronics and suitable for A/D converters, D/A converters, digital voltmeters, and precision voltage regulators requiring stable component supply across industrial and test equipment programs.
Supply support for MAX674CSA+ 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 systems.
The MAX674CSA+ belongs to Maxim's precision voltage reference product line, engineered specifically for metrology-grade accuracy in data conversion and calibration applications where long-term stability and low noise are essential.
FAQ
What is the operating temperature range for the MAX674CSA+?
The MAX674CSA+ is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is defined by its "C" grade suffix and applies specifically to the narrow SO-8 package variant. The device maintains all specified electrical characteristics-including 12ppm/°C tempco and ±15mV initial tolerance-within this range. It is not qualified for extended industrial (-40°C to +85°C) operation; that specification applies to the MAX674ESA+ variant.
Does the MAX674CSA+ require external components to function?
The MAX674CSA+ operates as a complete +10V reference with only VIN and GND connections. External components are optional: a 10kΩ potentiometer between TRIM and GND enables ±300mV output adjustment, while a 0.1µF bypass capacitor at VIN improves line rejection. No output buffer or compensation network is required for basic operation, though a unity-gain op-amp may be added for high-current loads beyond 10mA.
Is the MAX674CSA+ pin-compatible with the REF01 series?
Yes, the MAX674CSA+ is explicitly designed as a pin-for-pin compatible upgrade to the REF01. Pin 1 = GND, Pin 2 = VIN, Pin 5 = TRIM, Pin 6 = VOUT-all match REF01CP/CA pin assignments. The two unused pins (3,4,7,8) are N.C. in both devices. This compatibility allows direct replacement in existing REF01 layouts without PCB modification, while delivering improved accuracy (±0.15% vs. ±0.3%) and lower tempco (12ppm/°C vs. 25ppm/°C).
What is the maximum load current the MAX674CSA+ can drive?
The MAX674CSA+ guarantees stable operation with load currents up to 10mA while maintaining 0.001%/mA load regulation. Absolute maximum sink/source capability is 30mA (short-circuit current), but sustained loads above 10mA cause increased self-heating and potential tempco degradation. For continuous 20mA loads, a heatsinked external pass transistor or buffer amplifier is recommended to preserve reference accuracy and avoid exceeding the 300mW SO-8 package power limit.
Can the output voltage of the MAX674CSA+ be adjusted, and how does it affect performance?
Yes, the MAX674CSA+ output can be trimmed ±300mV using an external resistor network on the TRIM pin. Adjusting output by ±100mV increases temperature coefficient by ~0.7ppm/°C; thus, a ±300mV trim adds up to ~2.1ppm/°C worst-case shift. This remains within acceptable bounds for most 12–14-bit systems. The trim function enables precise alignment to values like 10.240V for binary scaling, without compromising long-term stability or noise performance.
MAX674CSA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- 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:
- 12ppm/°C
- Noise - 0.1Hz to 10Hz:
- 20µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 13V ~ 33V
- Current - Supply:
- 1.4mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX674CSA+ FAQ
1.How can I place an order for MAX674CSA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX674CSA+ 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 MAX674CSA+ reliable?
The price and inventory of MAX674CSA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX674CSA+ is usually 5 days.
3.What payment methods are accepted for MAX674CSA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX674CSA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX674CSA+?
MAX674CSA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX674CSA+ 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 MAX674CSA+?
For technical support, including MAX674CSA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX674CSA+ requirements.
6.How does Aetrix verify that MAX674CSA+ is sourced from the original manufacturer or authorized distributors?
All MAX674CSA+ 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 MAX674CSA+ meets industry standards.
7.What is the process for return or replacement of MAX674CSA+?
All MAX674CSA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX674CSA+, 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 MAX674CSA+ part is unused and in its original packaging.
Return procedure for MAX674CSA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX674CSA+ 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…
