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Analog Devices Inc./Maxim Integrated MAX6250BESA+T
- Part No.:
- MAX6250BESA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6250BESA+T.pdf
- Description:
- IC VREF SERIES 0.1% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,400
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Product details
Overview
MAX6250BESA+T from Maxim Integrated is a precision 5.000V buried-zener voltage reference IC with ±0.02% initial accuracy, 7.0ppm/°C max temperature coefficient over –40°C to +85°C, and 3.0µVP-P (0.1Hz–10Hz) output noise - designed for high-resolution ADC/DAC biasing and metrology-grade instrumentation.
For engineers reviewing the MAX6250BESA+T datasheet, MAX6250BESA+T pinout, MAX6250BESA+T application, or MAX6250BESA+T equivalent, key selection criteria include guaranteed ±15mA sink/source capability, stability with 0–100µF capacitive loads, low 20ppm/1000h long-term drift, and SO-8 package compatibility with industry-standard layout footprints.
Technical Context
The MAX6250BESA+T employs buried-zener core technology with on-chip temperature compensation to achieve laboratory-grade thermal stability without heater power. Its trim-adjustable architecture supports ±30mV external fine-tuning (±0.6%) without degrading temperature performance.
It delivers low-output-impedance regulation across frequency (≤1Ω at 1kHz), supports full-swing transient response (10µs to ±0.01%), and maintains ripple rejection >70dB up to 10kHz when NR pin is bypassed with 1µF - enabling direct use in sensitive analog signal chains without post-regulation filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±5mV at +25°C - ensures 16-bit DAC/ADC full-scale reference accuracy without calibration. |
| Temp Coefficient | 7.0ppm/°C max (–40°C to +85°C) - limits voltage drift to ≤±0.35mV over full industrial range. |
| Initial Accuracy | ±0.02% (±1mV) - enables single-point calibration in high-accuracy digital voltmeters and process controllers. |
| Output Noise | 3.0µVP-P (0.1Hz–10Hz), 2.5–5.0µVRMS (10Hz–1kHz) - preserves SNR in 16–18-bit data converters. |
| Load Regulation | ±7ppm/mA sourcing, ±15ppm/mA sinking - holds output within ±0.075mV under 15mA load step changes. |
| Supply Current | 2.0–3.3mA (8–36V input) - enables low-power operation in battery-backed precision systems. |
| Long-Term Stability | 20ppm/1000h - guarantees <±0.1mV drift per 1000 hours in deployed test equipment. |
Pinout & Package
MAX6250BESA+T is housed in an 8-pin SO (Small Outline) package, RoHS-compliant, with standard 1.27mm pitch and JEDEC MS-012AC outline. Pin 1 is marked by notch or dot; pins 1, 7, and 8 are internally connected and must remain unconnected in PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8 | I.C. (Internally Connected) | No external connection required; floating or tied to GND has no functional effect. |
| 2 | IN | Positive supply input (8–36V); requires local 2.2µF bypass capacitor to GND for stability. |
| 3 | NR | Noise reduction node; connect 1µF to GND to reduce wideband noise by ~30% (0.1Hz–1kHz). |
| 4 | GND | Analog ground reference; must be low-impedance star point shared with load return path. |
| 5 | TRIM | External voltage adjust input; accepts 0–5V for ±30mV output tuning via 10kΩ potentiometer. |
| 6 | OUT | Stable 5.000V reference output; drives capacitive loads up to 100µF without oscillation. |
Key Features
| Feature | Design Value |
|---|---|
| Buried-zener core | Delivers lowest 1/f noise (3.0µVP-P) among 5V references in SO-8 package - critical for metrology-grade DMMs. |
| Trim-adjustable output | ±30mV (±0.6%) external adjustment via TRIM pin - enables system-level calibration without trimming internal resistors. |
| Capacitive-load immunity | Stable with 0–100µF output capacitance - eliminates need for isolation resistors in noisy PLC I/O modules. |
| High sink/source drive | ±15mA output current capability - directly biases multiple op-amp references or ADC reference inputs without buffer amplifiers. |
| Low long-term drift | 20ppm/1000h aging rate - ensures <±0.5mV total drift over 5-year deployment in automated test equipment. |
Applications
| High-Resolution Data Acquisition | Digital Multimeters (DMMs) |
|---|---|
Use Scenario: 16-bit SAR ADC front-end in portable environmental sensor nodes requiring stable full-scale reference under varying ambient temperature. IC Role / Device Role / Timing Role: Primary voltage reference supplying VREF+ to ADC; regulates conversion accuracy independent of supply rail fluctuations. Use Value: 7.0ppm/°C tempco and 3.0µVP-P noise ensure <±0.5 LSB error across –40°C to +85°C - eliminating recalibration in field-deployed units. |
Use Scenario: Dual-slope integrating ADC reference in handheld 6½-digit DMMs where absolute accuracy and repeatability define product grade. IC Role / Device Role / Timing Role: Precision 5.000V reference for integrator ramp generation and zero-reference comparison. Use Value: ±0.02% initial accuracy and 20ppm/1000h stability meet ANSI/IEEE C37.90.1 Class 0.01 requirements for primary calibration standards. |
| Industrial Process Controllers | Automated Test Equipment (ATE) |
Use Scenario: 4–20mA transmitter calibration circuit in hazardous-area loop-powered controllers requiring intrinsic safety compliance. IC Role / Device Role / Timing Role: Stable excitation source for precision RTD/thermocouple signal conditioning; referenced to isolated 5V rail. Use Value: ±15mA sink/source capability allows direct driving of 2-wire transducer bridges and current-loop drivers without external buffers. |
Use Scenario: Multi-channel parametric test system requiring synchronized, low-noise reference rails for simultaneous device characterization. IC Role / Device Role / Timing Role: Master reference for DAC-controlled stimulus generation and ADC digitization across 32 channels. Use Value: 10µs turn-on settling and <±0.01% final value tolerance enable sub-microsecond channel switching without reference-induced measurement uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4550BRZ | 5.000V, 3ppm/°C max, 1.75µVP-P noise, SO-8, but higher 4.5mA supply current and no TRIM/NR pins. | Lacks external trim and noise-reduction features - suitable only where factory-trimmed accuracy suffices and board space permits larger decoupling. | Choose ADR4550BRZ if ultra-low tempco and noise are prioritized over configurability and power efficiency. |
| REF5050AIDR | 5.000V, 3ppm/°C max, 2.8µVP-P noise, SO-8, includes TRIM but no NR pin; requires ≥10V input for full spec compliance. | Higher minimum input voltage (10V) limits use in 5V-only systems; no NR pin reduces flexibility in high-frequency noise environments. | Choose REF5050AIDR when operating from ≥10V supplies and external trimming is needed without noise-reduction capacitor routing. |
Compared with ADR4550BRZ and REF5050AIDR, MAX6250BESA+T uniquely combines 7ppm/°C tempco, 3µVP-P noise, ±15mA drive, TRIM/NR configurability, and 8V min input - making it the only option supporting full-spec operation in compact, low-voltage, field-calibratable industrial instruments.
Availability
MAX6250BESA+T is available at Aetrix Electronics and suitable for high-resolution data acquisition, digital multimeters, industrial process controllers, and automated test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6250BESA+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 high-performance analog and mixed-signal ICs for precision, power, and interface applications - with emphasis on reliability and specification integrity in harsh environments.
The MAX62xx family targets metrology-grade voltage references for 16–18-bit data conversion systems, emphasizing low noise, low drift, and robustness against capacitive loading and supply variation.
FAQ
What is the maximum input voltage rating for MAX6250BESA+T?
The MAX6250BESA+T has an absolute maximum input voltage of +40V, but its specified operating range is 8V to 36V. Operation above 36V risks exceeding safe power dissipation limits in the SO-8 package, especially at elevated ambient temperatures. For reliable long-term use, maintain VIN ≤ 36V and ensure junction temperature stays below +150°C using appropriate PCB copper area and airflow.
Can MAX6250BESA+T drive a 100µF output capacitor without instability?
Yes, MAX6250BESA+T is explicitly characterized and guaranteed stable with output capacitance from 0µF to 100µF across its full operating temperature and load range. This eliminates the need for series isolation resistors in applications like PLC analog outputs or battery-powered DMMs where large bulk capacitance is used for transient suppression and supply hold-up.
Does the TRIM pin on MAX6250BESA+T affect temperature coefficient performance?
No - the TRIM pin on MAX6250BESA+T enables ±30mV (±0.6%) output adjustment via an external potentiometer without degrading temperature coefficient, noise, or long-term stability. The trimming circuit operates independently of the buried-zener core's temperature-compensation network, preserving the rated 7.0ppm/°C max tempco across the full –40°C to +85°C range.
What is the typical turn-on settling time for MAX6250BESA+T?
The MAX6250BESA+T achieves ±0.01% of final output voltage in 10µs after power application (VIN applied), as measured under standard conditions (VIN = 10V, no load, TA = +25°C). This fast settling supports high-throughput ATE systems and multiplexed data acquisition where reference stabilization time directly impacts channel scan rate.
Is MAX6250BESA+T RoHS-compliant and lead-free?
Yes, MAX6250BESA+T carries the "+" suffix indicating full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. The SO-8 package uses matte tin lead finish, and all die attach, bond wires, and mold compound meet JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements for standard reflow assembly.
MAX6250BESA+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, Buried Zener
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 7ppm/°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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6250BESA+T FAQ
1.How can I place an order for MAX6250BESA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6250BESA+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 MAX6250BESA+T reliable?
The price and inventory of MAX6250BESA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6250BESA+T is usually 5 days.
3.What payment methods are accepted for MAX6250BESA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6250BESA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6250BESA+T?
MAX6250BESA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6250BESA+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 MAX6250BESA+T?
For technical support, including MAX6250BESA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6250BESA+T requirements.
6.How does Aetrix verify that MAX6250BESA+T is sourced from the original manufacturer or authorized distributors?
All MAX6250BESA+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 MAX6250BESA+T meets industry standards.
7.What is the process for return or replacement of MAX6250BESA+T?
All MAX6250BESA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6250BESA+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 MAX6250BESA+T part is unused and in its original packaging.
Return procedure for MAX6250BESA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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