My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX6250BCSA
- Part No.:
- MAX6250BCSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6250BCSA.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,455
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX6250BCSA from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with 5.0ppm/°C max temperature coefficient, ±0.02% initial accuracy, and 3.0µVP-P (0.1Hz–10Hz) output noise-designed for high-resolution ADC/DAC biasing in industrial instrumentation and ATE systems.
For engineers reviewing the MAX6250BCSA datasheet, MAX6250BCSA pinout, MAX6250BCSA application, or MAX6250BCSA equivalent, key selection criteria include guaranteed ±15mA sourcing/sinking capability, 8-pin SO package compatibility, low 20ppm/1000h long-term stability, and optional external trim/noise reduction circuitry.
Technical Context
This device uses buried-zener topology with on-chip temperature compensation to achieve near-zero thermal curvature across –40°C to +85°C. Its low-output-impedance design maintains stability under capacitive loads up to 100µF without oscillation.
It supports dual-mode operation: standard reference output (pin 6), plus configurable external trimming (pin 5) and wideband noise reduction (pin 3) via external passive components-enabling system-level optimization of accuracy vs. noise trade-offs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.005V at +25°C - enables direct interface with 16-bit SAR and delta-sigma converters requiring <±1 LSB error at full scale. |
| Temp Coefficient | 5.0ppm/°C max (0°C to +70°C) - ensures ≤±0.35mV drift over industrial ambient range, critical for calibration-grade instruments. |
| Noise (0.1–10Hz) | 3.0µVP-P - limits RMS quantization uncertainty to <0.5 LSB in 18-bit systems referenced to 5V full-scale. |
| Load Regulation | ±6ppm/mA (sourcing), ±7ppm/mA (sinking) - maintains output stability during dynamic current draw up to ±15mA without external buffering. |
| Supply Current | 2.0–3.3mA - enables low-power operation in battery-backed precision sensors and portable test equipment. |
| Long-Term Stability | 20ppm/1000h - guarantees <±0.1mV output shift over first year of continuous operation, supporting unattended metrology applications. |
| Input Voltage Range | 8V to 36V - allows direct use with standard industrial 12V/24V rails and eliminates need for pre-regulation stages. |
Pinout & Package
MAX6250BCSA is housed in an 8-pin SO (Small Outline) package with industry-standard footprint (outline 21-0041), RoHS-compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. (Internally Connected) | No external connection required; internal die bond wires only-must remain unconnected in PCB layout. |
| 2 | IN | Positive power-supply input; accepts 8V–36V DC; requires local 2.2µF bypass capacitor to GND per typical application circuit. |
| 3 | NR | Noise reduction node; connect 1µF capacitor to GND to reduce wideband noise by >10dB above 10Hz-optional but recommended for sub-LSB noise floors. |
| 4 | GND | Analog ground reference; must be star-connected to minimize ground bounce in mixed-signal systems. |
| 5 | TRIM | External voltage trim input; accepts 10kΩ potentiometer between OUT and GND to adjust output ±30mV (±0.6%) without degrading tempco. |
| 6 | OUT | Stable 5.000V reference output; capable of sourcing/sinking ±15mA; stable with 0–100µF capacitive loads including ceramic and tantalum types. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise among precision references-3.0µVP-P (0.1–10Hz)-essential for DC-coupled metrology front-ends. |
| Optional NR capacitor | 1µF on NR pin reduces broadband noise floor by ≥10dB without affecting settling time or stability margin. |
| External trim capability | ±30mV adjustment range (±0.6%) via TRIM pin preserves factory-calibrated tempco and long-term drift performance. |
| Capacitive load immunity | Stable with 0–100µF output capacitance-eliminates need for isolation resistors in noisy environments or long trace layouts. |
| High sink/source drive | ±15mA output current supports direct driving of op-amp reference inputs, DAC bias networks, and multi-channel ADC VREF pins. |
Applications
| High-Resolution Data Acquisition | Digital Voltmeters (DVM) |
|---|---|
|
Use Scenario: 16-bit simultaneous-sampling ADC subsystem in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Primary voltage reference for ADC VREF pin and analog front-end gain-setting resistors. Use Value: 5.0ppm/°C tempco and 20ppm/1000h stability ensure <±0.005% full-scale error over 5-year field deployment without recalibration. |
Use Scenario: 6½-digit handheld DVM requiring ultra-low drift and sub-µV noise floor. IC Role / Device Role / Timing Role: Master reference for autoranging attenuator and integrator amplifier offset nulling. Use Value: 3.0µVP-P (0.1–10Hz) noise and ±0.02% initial accuracy enable true 20ppm measurement resolution at 5V range. |
| ATE Equipment Reference | Precision Current Sources |
|
Use Scenario: Parametric test system generating calibrated stimulus voltages for semiconductor device characterization. IC Role / Device Role / Timing Role: Stable excitation source for Kelvin sensing and feedback-controlled current sources. Use Value: ±15mA sourcing/sinking capability allows direct integration into force-and-measure (FAM) architecture without buffer amplifiers. |
Use Scenario: 4–20mA loop transmitter with HART modulation requiring stable current setpoint generation. IC Role / Device Role / Timing Role: Precision voltage reference for current mirror biasing and DAC-based IOUT scaling. Use Value: Load regulation of ±6ppm/mA ensures <±0.1µA current error across full 20mA span despite sensor cable impedance variation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR445BRZ | 5.000V output, 3ppm/°C max tempco, 1.2µVP-P noise, but only ±10mA output drive and requires ≥12V supply. | Better noise/tempco, but insufficient sink current for direct DAC reference driving; needs external buffer for >10mA loads. | Select when ultimate low-noise performance is prioritized and load current ≤10mA; verify supply headroom ≥12V. |
| REF5050AIDR | 5.000V output, 3ppm/°C max tempco, 2.5µVP-P noise, ±10mA drive, and integrated thermal shutdown-but no NR or TRIM pins. | Lacks external noise reduction and trimming flexibility; fixed output only; better for cost-sensitive, non-adjustable designs. | Select for simplified BOM where trim/noise tuning is unnecessary and thermal protection is required in high-ambient environments. |
Compared with ADR445BRZ and REF5050AIDR, MAX6250BCSA offers superior ±15mA drive strength and dedicated NR/TRIM pins for system-level optimization-making it optimal for high-current, field-calibratable, and ultra-low-noise precision instrumentation where flexibility matters.
Availability
MAX6250BCSA is available at Aetrix Electronics and suitable for high-resolution data acquisition, digital voltmeters, and ATE equipment requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for MAX6250BCSA 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) is a U.S.-based semiconductor company specializing in high-performance analog and mixed-signal ICs for precision, power, and interface applications.
The MAX62xx series was designed specifically for metrology-grade voltage referencing in 16+ bit data converters, calibration standards, and industrial control systems demanding laboratory-level stability and noise performance.
FAQ
What is the maximum operating temperature range for the MAX6250BCSA?
The MAX6250BCSA is specified for 0°C to +70°C operation, as indicated by the 'C' suffix in its part number. It is not rated for extended industrial (–40°C to +85°C) or military (–55°C to +125°C) temperature ranges-those require variants like MAX6250BEPA+ or MAX6250BMJA. Operating outside 0°C to +70°C may result in unguaranteed tempco, noise, or long-term stability performance.
Can the MAX6250BCSA drive a 10kΩ load directly without additional buffering?
Yes, the MAX6250BCSA can directly drive a 10kΩ load: at 5.000V output, this draws only 0.5mA-well within its ±15mA sourcing/sinking capability. Its excellent load regulation (±6ppm/mA) ensures output deviation remains below ±3ppm (15µV), preserving accuracy in precision applications such as 16-bit DAC reference circuits.
Does the MAX6250BCSA require an external capacitor on the NR pin for basic operation?
No, the NR pin is optional: MAX6250BCSA functions fully without any external capacitor. However, connecting a 1µF capacitor from NR to GND reduces wideband noise by >10dB above 10Hz-critical for applications demanding sub-µV noise floors, such as high-resolution weigh scales or medical ECG front-ends. Leaving NR open retains full specification compliance.
How does the TRIM pin affect the initial accuracy specification of the MAX6250BCSA?
The TRIM pin allows ±30mV (±0.6%) output adjustment using a 10kΩ potentiometer, but this external trimming does not degrade the device's factory-calibrated ±0.02% initial accuracy or 5.0ppm/°C temperature coefficient. The trim function operates independently of the internal compensation network, preserving all specified stability metrics across temperature and time.
Is the MAX6250BCSA compatible with ceramic output capacitors up to 100µF?
Yes, the MAX6250BCSA is explicitly characterized and guaranteed stable with output capacitance ranging from 0µF to 100µF-including X7R/X5R ceramic, tantalum, and aluminum electrolytic types. This eliminates the need for series isolation resistors and simplifies layout in space-constrained industrial PCBs where bulk decoupling is required near ADC or DAC ICs.
MAX6250BCSA 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:
- Obsolete
- Reference Type:
- Series, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 5ppm/°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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6250BCSA FAQ
1.How can I place an order for MAX6250BCSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250BCSA 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 MAX6250BCSA reliable?
The price and inventory of MAX6250BCSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250BCSA is usually 5 days.
3.What payment methods are accepted for MAX6250BCSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250BCSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250BCSA?
MAX6250BCSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250BCSA 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 MAX6250BCSA?
For technical support, including MAX6250BCSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250BCSA requirements.
6.How does Aetrix verify that MAX6250BCSA is sourced from the original manufacturer or authorized distributors?
All MAX6250BCSA 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 MAX6250BCSA meets industry standards.
7.What is the process for return or replacement of MAX6250BCSA?
All MAX6250BCSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250BCSA, 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 MAX6250BCSA part is unused and in its original packaging.
Return procedure for MAX6250BCSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX6250BCSA 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…
