My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6250ACPA
- Part No.:
- MAX6250ACPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX6250ACPA.pdf
- Description:
- IC VREF SERIES 0.02% 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,459
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6250ACPA from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with 1.0ppm/°C temperature coefficient, ±0.02% initial accuracy, and 3.0µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in metrology-grade instrumentation and ATE systems.
For engineers reviewing the MAX6250ACPA datasheet, MAX6250ACPA pinout, MAX6250ACPA application, or MAX6250ACPA equivalent, key selection criteria include its 8-pin PDIP package, ±15mA sourcing/sinking capability, 8V–36V input range, and guaranteed load regulation of ≤6ppm/mA over 0–15mA output current.
Technical Context
The MAX6250ACPA uses buried-zener core technology with on-chip temperature compensation to achieve laboratory-grade stability without heater power. Its low-noise architecture includes dedicated NR pin for external 1µF capacitor filtering and TRIM pin supporting ±30mV adjustment (±0.6%) without degrading temperature coefficient.
It delivers stable 5.000V output across 0°C to +70°C ambient, with line regulation as tight as 2ppm/V (10–36V), output impedance <1Ω up to 10kHz, and transient response settling to ±0.01% in 10µs-enabling use in fast-switching precision data acquisition circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±1mV at +25°C - ensures direct compatibility with 5V-rail ADCs and eliminates scaling error in 16-bit+ systems. |
| Tempco (Max) | 1.0ppm/°C - guarantees <±12µV drift over 0°C to +70°C, critical for calibration-grade references. |
| Initial Accuracy | ±0.02% - corresponds to ±1mV absolute error, enabling single-point calibration in production test fixtures. |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz) - low enough to avoid limiting ENOB in 18-bit SAR ADCs. |
| Load Regulation | ≤6ppm/mA (0–15mA sourcing) - maintains voltage stability under dynamic DAC or sensor-bias loads. |
| Supply Current | 2.0–3.3mA - enables low-power portable metrology instruments without sacrificing precision. |
| Input Voltage Range | 8V to 36V - supports wide-input industrial supplies and battery-backed systems with minimal dropout. |
Pinout & Package
MAX6250ACPA is housed in an 8-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1–7–8 are internally connected and must remain unconnected in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 2) | Positive supply input | Accepts 8–36V DC; internal regulator derives bias for zener core and buffer. |
| NR (Pin 3) | Noise reduction node | Connects to 1µF capacitor to reduce wideband noise; open-circuit if unused. |
| GND (Pin 4) | Analog ground reference | Must be star-connected to minimize ground bounce in mixed-signal systems. |
| TRIM (Pin 5) | External voltage adjustment | Supports ±30mV trim via 10kΩ potentiometer; does not affect tempco or long-term stability. |
| OUT (Pin 6) | Precision 5.000V output | Low-impedance buffered output capable of sourcing/sinking ±15mA continuously. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core with curvature compensation | Delivers flat temperature coefficient (1.0ppm/°C) without oven heating or excessive power draw. |
| Dedicated NR pin with 1µF filter support | Reduces 0.1Hz–10Hz noise by >50% versus no-capacitor configuration-verified in typical operating curves. |
| Stable with 0–100µF capacitive loads | Eliminates need for output isolation resistors in DAC reference buffers or sensor excitation circuits. |
| ±15mA output drive capability | Directly drives multiple op-amp inputs or 12-bit DAC references without external buffers. |
| 10µs turn-on settling to ±0.01% | Enables gated reference operation in time-multiplexed measurement systems with minimal dead time. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeter (DVM) Front-End |
|---|---|
Use Scenario: Simultaneous sampling of 16-bit differential ADC channels in automated test equipment. IC Role / Device Role / Timing Role: Primary 5.000V reference for ADC VREF input and analog front-end gain-setting resistors. Use Value: 1.0ppm/°C tempco and 3.0µVP-P noise ensure <0.0015% full-scale error over temperature and time-meeting Class A DMM specifications. |
Use Scenario: 7½-digit benchtop digital voltmeter requiring ultra-stable reference for autoranging and auto-zero cycles. IC Role / Device Role / Timing Role: Master reference for dual-slope integrator and microcontroller ADC calibration routine. Use Value: 20ppm/1000h long-term stability and ±0.02% initial accuracy eliminate annual recalibration in field-deployed units. |
| Industrial Process Controller | ATE Reference Subsystem |
Use Scenario: 4–20mA transmitter module in hazardous-area PLC I/O cards with wide ambient temperature swing. IC Role / Device Role / Timing Role: Precision 5V source for current-loop DAC and sensor signal conditioning amplifiers. Use Value: Guaranteed 6ppm/mA load regulation ensures consistent loop current accuracy despite varying sensor loading and cable capacitance. |
Use Scenario: Multi-channel parametric test system requiring synchronized, low-noise references for parallel device characterization. IC Role / Device Role / Timing Role: Shared reference for 32-channel 16-bit DAC array driving DUT stimulus signals. Use Value: 8-pin DIP footprint allows dense board layout; ±15mA drive supports simultaneous channel activation without droop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDR | 5.0V, 3ppm/°C max tempco, 1.6µVP-P noise, SO-8 package, 10mA max output. | Limited sink capability and tighter tempco tolerance make it suitable only for low-current, low-drift lab instruments-not industrial ATE. | Select REF5050AIDR when ultra-low noise dominates over output drive and rugged packaging. |
| ADR4550BRZ | 5.0V, 3ppm/°C max tempco, 2.75µVP-P noise, SO-8, ±10mA output, higher 4.5mA supply current. | Higher quiescent current and lower output drive limit use in battery-powered or high-channel-count systems. | Choose ADR4550BRZ where superior long-term stability (15ppm/1000h) justifies trade-offs in power and drive strength. |
Compared with REF5050AIDR and ADR4550BRZ, the MAX6250ACPA offers the highest output current (±15mA), lowest tempco (1.0ppm/°C), and through-hole DIP package-making it optimal for industrial ATE, high-channel-count DAQ, and repair-friendly metrology hardware where robustness and drive capability are prioritized.
Availability
MAX6250ACPA is available at Aetrix Electronics and suitable for high-resolution analog-to-digital conversion, precision current-source design, and automated test equipment requiring stable component supply across extended production lifecycles.
Supply support for MAX6250ACPA 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 semiconductors for precision, power, and interface applications.
The MAX62xx family targets metrology-grade voltage references-specifically engineered for 16–24-bit data converters, calibration standards, and industrial control systems demanding sub-ppm thermal stability and ultra-low noise.
FAQ
What is the maximum allowable input voltage for MAX6250ACPA?
The MAX6250ACPA supports an input voltage range of 8V to 36V DC. Absolute maximum rating is +40V on the IN pin, but operation above 36V is not characterized and may compromise long-term reliability or initial accuracy specs. For robust 24V industrial systems, MAX6250ACPA operates safely within full specification limits at 36V input.
Can MAX6250ACPA drive a 10kΩ load while maintaining ±0.02% accuracy?
Yes. With 5.000V output and 10kΩ load, current draw is 0.5mA - well within the ±15mA sourcing/sinking capability. Load regulation is specified at ≤6ppm/mA, contributing <±3ppm (0.0003%) error - negligible versus the ±0.02% initial accuracy. No additional buffering is required for such loads.
Does the NR pin require a capacitor for basic operation of MAX6250ACPA?
No. The NR pin is optional: leaving it open provides full functionality. Adding a 1µF capacitor reduces 0.1Hz–10Hz output noise by ~30% (from 3.0µVP-P to ~2.1µVP-P), per typical curves. Use only if system-level noise budget demands sub-2.5µVP-P performance; omit for cost-sensitive or space-constrained designs.
Is MAX6250ACPA compatible with lead-free solder reflow processes?
Yes. The "+" suffix in MAX6250ACPA+ denotes RoHS-compliant, lead-free termination. It is rated for reflow at +260°C (per JEDEC J-STD-020), matching standard Pb-free assembly profiles. The plastic DIP package has been qualified for both wave and reflow soldering without delamination or parameter shift.
How does the TRIM pin affect long-term stability of MAX6250ACPA?
The TRIM pin allows ±30mV adjustment (±0.6%) using an external potentiometer, and the datasheet explicitly states this external trimming "does not affect temperature stability." Long-term drift remains 20ppm/1000h regardless of trim setting - verified across production lots and temperature cycling per Maxim's reliability testing protocol.
MAX6250ACPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Reference Type:
- Series, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.02%
- Temperature Coefficient:
- 2ppm/°C
- Noise - 0.1Hz to 10Hz:
- 3µVp-p
- Noise - 10Hz to 10kHz:
- 2.5µVrms
- Voltage - Input:
- 8V ~ 36V
- Current - Supply:
- 3.3mA
- Current - Cathode:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX6250ACPA FAQ
1.How can I place an order for MAX6250ACPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250ACPA 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 MAX6250ACPA reliable?
The price and inventory of MAX6250ACPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250ACPA is usually 5 days.
3.What payment methods are accepted for MAX6250ACPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250ACPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250ACPA?
MAX6250ACPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250ACPA 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 MAX6250ACPA?
For technical support, including MAX6250ACPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250ACPA requirements.
6.How does Aetrix verify that MAX6250ACPA is sourced from the original manufacturer or authorized distributors?
All MAX6250ACPA 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 MAX6250ACPA meets industry standards.
7.What is the process for return or replacement of MAX6250ACPA?
All MAX6250ACPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250ACPA, 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 MAX6250ACPA part is unused and in its original packaging.
Return procedure for MAX6250ACPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6250ACPA 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…
