My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX876AESA+
- Part No.:
- MAX876AESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX876AESA+.pdf
- Description:
- IC VREF SERIES 0.03% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX876AESA+ from Maxim Integrated is a precision +10.000V voltage reference IC with ±0.03% initial accuracy, 7ppm/°C max temperature coefficient, and 29µVRMS (10Hz–1kHz) output noise-designed for high-resolution 12-bit data-acquisition systems requiring stable, low-drift excitation in portable test equipment and digital multimeters.
For engineers reviewing the MAX876AESA+ datasheet, MAX876AESA+ pinout, MAX876AESA+ application, or MAX876AESA+ equivalent, this page delivers verified specifications, SO-8 package layout, TRIM/TEMP terminal functions, load regulation behavior (1ppm/mA sourcing), and real-world selection guidance against comparable 10V references.
Technical Context
The MAX876AESA+ implements a laser-trimmed BiCMOS bandgap core with proprietary curvature-correction circuitry to achieve 7ppm/°C max drift over –40°C to +85°C. It operates from +12V to +18V input, delivering 10.000V ±0.03% at 25°C with internal trimming capability via the TRIM pin.
Its TEMP pin provides a 630mV baseline output at 25°C with 2.1mV/°C sensitivity for external temperature compensation or monitoring. The device sources up to 10mA and sinks 2mA while maintaining 1ppm/mA load regulation (sourcing) and 4ppm/V line regulation-enabling direct use in ADC reference, DAC biasing, and calibration subsystems without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.000V ±0.03% (±3mV) at 25°C - ensures ≤1 LSB error in 12-bit systems across full temp range |
| Tempco | 7ppm/°C max - guarantees <±0.84mV drift over –40°C to +85°C ambient |
| Noise (10Hz–1kHz) | 29µVRMS - supports 12-bit resolution without added filtering in DAQ front-ends |
| Quiescent Current | 320µA to 700µA - enables >10-year battery life in portable instrumentation |
| Load Regulation | 1ppm/mA (source), 150ppm/mA (sink) - allows direct drive of 10mA ADC reference inputs with <0.01% gain error |
| Line Regulation | 1ppm/V (12V–18V) - eliminates need for pre-regulation in wide-input industrial supplies |
| TRIM Range | ±600mV (±6%) - enables field calibration to compensate for PCB trace resistance or system offset |
Pinout & Package
MAX876AESA+ uses an 8-pin SOIC (SO-8, package code S8-4), 3.94mm × 4.90mm body, 1.27mm pitch, lead-free (RoHS-compliant). Pins 1 and 8 are internally connected (do not route); Pin 7 is no-connect.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2: IN | Positive supply input | Accepts +12V to +18V; requires 0.1µF ceramic bypass to GND for optimal line transient rejection |
| Pin 3: TEMP | Digital die temperature monitor | 630mV @ 25°C, +2.1mV/°C slope - used for thermal compensation or overtemperature warning |
| Pin 4: GND | Analog ground reference | Must be star-connected to system AGND; separates reference return from power return paths |
| Pin 5: TRIM | Voltage-adjust interface | Connects to center tap of 100kΩ pot between OUT and GND; enables ±6% output fine-tuning |
| Pin 6: OUT | Precision 10V reference output | Delivers 10.000V ±0.03%; sources 10mA / sinks 2mA; stable with 0–100µF capacitive loads |
Key Features
| Feature | Design Value |
|---|---|
| Low-drift curvature-corrected bandgap | 7ppm/°C max tempco achieved via laser-trimmed thin-film resistors and on-die correction circuitry |
| Integrated temperature sensor | TEMP pin provides factory-calibrated 2.1mV/°C analog output - eliminates need for external thermistor networks |
| Adjustable reference output | TRIM pin enables ±6% output tuning using only a single 100kΩ potentiometer - simplifies system-level calibration |
| High PSRR & low noise | –100dB PSRR at 100Hz and 29µVRMS (10Hz–1kHz) noise - maintains SNR in sensitive measurement circuits |
| Short-circuit protected output | Internal current limiting limits sink current to 60mA into GND and 3mA into IN - prevents latch-up during fault conditions |
Applications
| Portable Digital Multimeters | 12-Bit Data Acquisition Systems |
|---|---|
Use Scenario: Handheld DMMs requiring stable 10V reference for autoranging DC voltage measurement across –40°C to +85°C operating range. IC Role / Device Role / Timing Role: Primary voltage reference for 12-bit SAR ADC; supplies excitation to internal scaling resistors and comparator thresholds. Use Value: ±0.03% initial accuracy and 7ppm/°C drift ensure ≤0.5-digit error over full temperature range without recalibration. |
Use Scenario: Battery-powered environmental sensor node digitizing thermocouple and RTD signals with 12-bit resolution. IC Role / Device Role / Timing Role: Precision reference for simultaneous-sampling ADC; also feeds TEMP pin to compensate for sensor self-heating effects. Use Value: 29µVRMS noise and 1ppm/mA load regulation enable 12-bit ENOB without post-processing or averaging. |
| Low-Power Test Equipment | Calibration Standards for Field Instruments |
Use Scenario: Benchtop calibrator generating precise 10V outputs for verifying handheld meters and transmitters in field service. IC Role / Device Role / Timing Role: Master reference source in closed-loop calibration architecture; TRIM pin used for NIST-traceable adjustment. Use Value: ±600mV TRIM range allows final system-level calibration to ±0.005% after assembly and aging. |
Use Scenario: Portable calibration standard deployed in manufacturing test fixtures to validate production-line DMMs and PLC analog inputs. IC Role / Device Role / Timing Role: Long-term stable reference with 50ppm/kh drift spec - serves as secondary standard between lab recalibrations. Use Value: 50ppm/kh long-term stability ensures ≤15ppm drift over 1 year, meeting ISO/IEC 17025 calibration interval requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10V precision reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010AIDR | 10V output, 3ppm/°C max tempco, 12µVRMS noise, 1.2mA IQ - lower drift/noise but higher quiescent current | Better suited for 16-bit systems; less ideal for battery-powered 12-bit designs due to 3.7× higher IQ | Choose REF5010AIDR when ultra-low drift dominates over power budget; MAX876AESA+ preferred for portable instruments |
| ADR445BRZ | 10V output, 3ppm/°C max tempco, 1.8µVRMS noise, 1.15mA IQ - superior noise performance but requires external trim resistor network | Requires external 10-turn pot and op-amp buffer for adjustment; no integrated TEMP output | Choose ADR445BRZ for metrology-grade 16-bit applications; MAX876AESA+ offers simpler integration with built-in TEMP and TRIM |
Compared with REF5010AIDR and ADR445BRZ, the MAX876AESA+ delivers optimal balance of 7ppm/°C drift, 29µVRMS noise, 320µA IQ, and integrated TEMP/TRIM functionality-making it the most cost-effective and space-efficient solution for portable 12-bit measurement systems where board area and battery life are constrained.
Availability
MAX876AESA+ is available at Aetrix Electronics and suitable for portable data-acquisition systems, digital multimeters, and low-power test equipment requiring stable component supply with guaranteed long-term continuity.
Supply support for MAX876AESA+ 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 measurement, power management, and interface applications.
The MAX873/MAX875/MAX876 family was designed specifically for high-accuracy, low-power voltage reference needs in portable and industrial instrumentation-emphasizing low drift, integrated diagnostics (TEMP), and field-adjustability (TRIM) without external components.
FAQ
What is the maximum input voltage for the MAX876AESA+?
The MAX876AESA+ supports a maximum input voltage of +18V, with guaranteed operation from +12V to +18V. Absolute maximum rating is +20V on the IN pin relative to GND. Exceeding +18V may degrade long-term stability or increase quiescent current beyond datasheet limits, so design margin should be maintained per the recommended operating conditions in the MAX876AESA+ datasheet.
Can the MAX876AESA+ be used in a 16-bit data acquisition system?
The MAX876AESA+ is specified for 12-bit systems (29µVRMS noise, 7ppm/°C drift), and while it may function in some 16-bit applications, its 29µVRMS noise exceeds the ~1.5µVRMS requirement for 16-bit ENOB. For true 16-bit performance, consider alternatives like REF5010AIDR. The MAX876AESA+ remains optimal for cost-sensitive 12-bit portable DAQ where its 320µA IQ and integrated TEMP/TRIM deliver superior system-level value.
How does the TEMP pin on the MAX876AESA+ work?
The TEMP pin on the MAX876AESA+ outputs a voltage proportional to die temperature: 630mV at +25°C with +2.1mV/°C sensitivity. This analog output enables external temperature compensation circuits or overtemperature detection without additional sensors. Self-heating must be considered; under 350µA total dissipation, die temperature closely tracks ambient, making the MAX876AESA+ TEMP output usable for system-level thermal management.
What is the purpose of the TRIM pin on the MAX876AESA+?
The TRIM pin on the MAX876AESA+ allows adjustment of the output voltage over a ±6% range (±600mV around 10V) using a simple 100kΩ potentiometer connected between OUT and GND. This enables field calibration to correct for PCB trace resistance, solder joint offsets, or system-level gain errors-eliminating the need for laser trimming or external op-amps in production calibration workflows.
Is the MAX876AESA+ RoHS compliant and lead-free?
Yes, the MAX876AESA+ is RoHS compliant and lead-free, as indicated by the "+" suffix in the part number per Maxim's packaging nomenclature. It uses a matte-tin finish on the SOIC leads and meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), allowing standard reflow profiles without baking. Full compliance documentation is available through Analog Devices' product change notifications (PCNs) for the MAX876AESA+.
MAX876AESA+ 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:
- ±0.03%
- Temperature Coefficient:
- 7ppm/°C
- Noise - 0.1Hz to 10Hz:
- 18µVp-p
- Noise - 10Hz to 10kHz:
- 29µVrms
- Voltage - Input:
- 12V ~ 18V
- Current - Supply:
- 700µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX876AESA+ FAQ
1.How can I place an order for MAX876AESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX876AESA+ 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 MAX876AESA+ reliable?
The price and inventory of MAX876AESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX876AESA+ is usually 5 days.
3.What payment methods are accepted for MAX876AESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX876AESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX876AESA+?
MAX876AESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX876AESA+ 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 MAX876AESA+?
For technical support, including MAX876AESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX876AESA+ requirements.
6.How does Aetrix verify that MAX876AESA+ is sourced from the original manufacturer or authorized distributors?
All MAX876AESA+ 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 MAX876AESA+ meets industry standards.
7.What is the process for return or replacement of MAX876AESA+?
All MAX876AESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX876AESA+, 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 MAX876AESA+ part is unused and in its original packaging.
Return procedure for MAX876AESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX876AESA+ 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…
