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Analog Devices Inc./Maxim Integrated MAX876AESA+TG002
- Part No.:
- MAX876AESA+TG002
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX876AESA+TG002.pdf
- Description:
- IC VREF SERIES 0.03% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
The MAX876AESA+TG002 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 excitation or calibration references in portable test equipment.
For engineers reviewing the MAX876AESA+TG002 datasheet, MAX876AESA+TG002 pinout, MAX876AESA+TG002 application, or MAX876AESA+TG002 equivalent, key selection criteria include its 10V output stability over –40°C to +85°C, ±600mV trim range via external potentiometer, TEMP pin for die-temperature monitoring, and SO-8 package compatibility with low-power, space-constrained PCB layouts.
Technical Context
The MAX876AESA+TG002 employs a proprietary curvature-corrected bandgap core with laser-trimmed thin-film resistors to achieve 7ppm/°C max drift and 0.03% initial accuracy. Its TRIM pin enables ±6% output adjustment using a single 100kΩ potentiometer between OUT and GND.
It delivers 10V output with 320–550µA quiescent current across temperature, sources up to 10mA while sinking 2mA, and maintains 1ppm/V line regulation (VIN = 12V to 18V) and 1ppm/mA load regulation-enabling direct use in ADC/DAC reference rails without buffering in moderate-load applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | +10.000V nominal, ±0.03% initial accuracy (±3mV) at +25°C |
| Tempco | ≤7ppm/°C max over –40°C to +85°C - supports ≤1 LSB error in 14-bit systems across full temp range |
| Noise (10Hz–1kHz) | 29µVRMS - suitable for 12-bit data acquisition without additional filtering |
| Quiescent Current | 320–550µA - enables >10-year battery life in portable multimeters |
| Load Regulation | 1ppm/mA max (source), 150ppm/mA max (sink) - stable under varying DAC/ADC bias loads |
| Line Regulation | 1ppm/V max (VIN = 12V to 18V) - rejects supply ripple in unregulated 12V rail environments |
| TRIM Range | ±600mV (±6%) - allows field calibration without redesigning feedback networks |
| TEMP Output | 630mV @ +25°C, +2.1mV/°C slope - provides direct die-temperature sensing for thermal compensation |
Pinout & Package
MAX876AESA+TG002 uses an 8-pin SOIC (SO-8, package code S8-4), 3.94mm × 4.90mm body, 1.27mm pitch, lead-free (RoHS-compliant) construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | I.C. | Internally connected - must remain unconnected on PCB |
| 2 | IN | Positive supply input (12V to 18V); dropout <2.5V at 10mA load |
| 3 | TEMP | Temperature-proportional analog output (630mV @ +25°C, +2.1mV/°C) |
| 4 | GND | Analog ground reference - must be star-connected to minimize noise coupling |
| 5 | TRIM | Voltage-adjust input - connect to center tap of 100kΩ pot between OUT and GND |
| 6 | OUT | Stable +10.000V reference output - capable of sourcing 10mA or sinking 2mA |
| 7 | N.C. | No internal connection - leave floating; no PCB trace required |
Key Features
| Feature | Design Value |
|---|---|
| Low-drift curvature correction | 7ppm/°C max tempco achieved via on-die trimming - eliminates need for external compensation circuits |
| Integrated TEMP sensor | Dual-use die-temperature monitor (630mV @ +25°C) - enables self-calibrating thermal compensation in DMMs |
| Wide supply range | Operates from 12V to 18V IN - compatible with standard 12V industrial rails and battery-backed supplies |
| Trim-enabled calibration | ±600mV output adjustment via single potentiometer - supports end-of-line calibration without firmware changes |
| Capacitive-load stability | Stable with 0–100µF output capacitance - simplifies layout in noisy environments without phase-compensation networks |
Applications
| Digital Multimeters | Portable Data-Acquisition Systems |
|---|---|
Use Scenario: High-accuracy DC voltage measurement with auto-ranging and auto-zero functions. IC Role / Device Role / Timing Role: Primary 10V reference for SAR ADC front-end and internal calibration ladder. Use Value: ±0.03% initial accuracy and 7ppm/°C drift ensure <0.01% total measurement error over –10°C to +50°C operating range. | Use Scenario: Battery-powered field logger capturing sensor signals (thermocouples, strain gauges) at 10ksps. IC Role / Device Role / Timing Role: Excitation and reference source for 12-bit sigma-delta ADC and programmable gain amplifier. Use Value: 29µVRMS noise and 320µA quiescent current enable >100hr runtime on two AA cells while maintaining 12-bit ENOB. |
| 12-Bit ADC Reference Rails | Low-Power Test Equipment |
Use Scenario: Precision analog input stage in benchtop oscilloscope auxiliary ADC channels. IC Role / Device Role / Timing Role: Stable 10V reference for ADC reference buffer and offset nulling circuitry. Use Value: 1ppm/V line regulation rejects ripple from switching power supplies; TRIM pin allows factory-set gain matching across channels. | Use Scenario: Handheld LCR meter requiring stable excitation voltage and ratiometric measurement capability. IC Role / Device Role / Timing Role: Dual-function reference: 10V excitation source and ADC reference for impedance calculation. Use Value: TEMP pin output enables real-time temperature correction of component DCR drift, improving measurement repeatability by 3×. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010IDR | 10V output, 3ppm/°C max tempco, 12µVRMS noise, 1mA IQ - lower noise but 3× higher supply current | Better for ultra-low-noise 16-bit systems; less suitable for battery operation due to IQ | Select REF5010IDR only when sub-20µV noise is mandatory and power budget allows ≥1mA continuous draw. |
| ADR445BRZ | 10V output, 3ppm/°C max tempco, 12µVRMS noise, 750µA IQ, SO-8 - similar performance but higher cost and no TEMP pin | Lacks integrated temperature sensor; requires external thermistor network for thermal compensation | Choose ADR445BRZ if TEMP functionality is unnecessary and tighter long-term drift (<15ppm/kh) is prioritized over system integration. |
Compared with REF5010IDR and ADR445BRZ, the MAX876AESA+TG002 uniquely combines 10V precision, ultra-low IQ (320µA), and integrated die-temperature sensing in SO-8 - making it optimal for portable, self-compensating, battery-sensitive instrumentation where board space and thermal awareness are critical.
Availability
MAX876AESA+TG002 is available at Aetrix Electronics and suitable for digital multimeters, portable data-acquisition systems, and low-power test equipment requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX876AESA+TG002 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.
The MAX873/MAX875/MAX876 family was engineered specifically for low-power, high-accuracy voltage referencing in portable and industrial test instrumentation - emphasizing low drift, low noise, and integrated diagnostics like TEMP output.
FAQ
What is the maximum input voltage rating for the MAX876AESA+TG002?
The MAX876AESA+TG002 has an absolute maximum IN-to-GND rating of +20V. However, functional operation is specified for VIN = 12V to 18V. Exceeding 18V may increase quiescent current and degrade long-term stability; sustained operation above 20V risks permanent damage per Absolute Maximum Ratings.
Can the MAX876AESA+TG002 drive a 10kΩ load directly without buffer amplification?
Yes. The MAX876AESA+TG002 sources up to 10mA and sinks 2mA. A 10kΩ load at 10V draws only 1mA, well within its sourcing capability. Load regulation remains ≤1ppm/mA, so output deviation is <1µV - negligible for 12-bit applications. No buffer is required unless dynamic load transients exceed 10mA.
How does the TEMP pin on the MAX876AESA+TG002 function in practice?
The TEMP pin outputs 630mV at +25°C with +2.1mV/°C sensitivity, directly proportional to die temperature. In practice, it's used to feed an ADC channel for real-time thermal compensation - e.g., correcting reference drift in digital multimeters or adjusting sensor gain in portable DAQ systems. It must be unloaded for accuracy; adding >10kΩ load introduces measurable error.
Is the MAX876AESA+TG002 pin-compatible with other devices in the MAX87x family?
Yes. All MAX873/MAX875/MAX876 variants share identical SO-8 pinout and footprint (S8-4). The MAX876AESA+TG002 is mechanically and electrically pin-compatible with MAX873AESA+ and MAX875AESA+, differing only in output voltage (10V vs. 2.5V/5V), trim range (±600mV vs. ±100mV/±300mV), and TEMP voltage (630mV vs. 570mV).
What is the typical turn-on time for the MAX876AESA+TG002 to settle within 0.1% of 10V?
The MAX876AESA+TG002 typically settles to within 0.1% of 10V (±10mV) in 150µs with no output capacitor. With a 1µF output capacitor, turn-on time increases to ≤300µs due to RC charging. This behavior is consistent across all MAX87x variants and is verified in the datasheet's TURN-ON TRANSIENT plots (toc39–toc40).
MAX876AESA+TG002 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:
- Obsolete
- 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+TG002 FAQ
1.How can I place an order for MAX876AESA+TG002 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX876AESA+TG002 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+TG002 reliable?
The price and inventory of MAX876AESA+TG002 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX876AESA+TG002 is usually 5 days.
3.What payment methods are accepted for MAX876AESA+TG002?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX876AESA+TG002 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX876AESA+TG002?
MAX876AESA+TG002 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX876AESA+TG002 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+TG002?
For technical support, including MAX876AESA+TG002 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX876AESA+TG002 requirements.
6.How does Aetrix verify that MAX876AESA+TG002 is sourced from the original manufacturer or authorized distributors?
All MAX876AESA+TG002 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+TG002 meets industry standards.
7.What is the process for return or replacement of MAX876AESA+TG002?
All MAX876AESA+TG002 units undergo pre-shipment inspection (PSI). If there is an issue with MAX876AESA+TG002, 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+TG002 part is unused and in its original packaging.
Return procedure for MAX876AESA+TG002:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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