Analog Devices Inc./Maxim Integrated MAX6150ESA+
- Part No.:
- MAX6150ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6150ESA+.pdf
- Description:
- IC VREF SERIES 1% 8SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
The MAX6150ESA+ from Maxim Integrated is a precision 5.0V, low-dropout, micropower, three-terminal voltage reference in an 8-pin SO package. It delivers ±1% initial accuracy, 15ppm/°C typical temperature coefficient (≤50ppm/°C max), and 200mV dropout-enabling stable operation in 5V systems with input as low as 5.2V. Its 80µA typical supply current and stability with up to 10nF capacitive loads make it suitable for battery-powered data-acquisition front-ends.
For engineers reviewing the MAX6150ESA+ datasheet, MAX6150ESA+ pinout, MAX150ESA+ application, or MAX6150ESA+ equivalent, key selection criteria include output voltage tolerance over temperature, load regulation (0.65–2 mV/mA sourcing), line regulation (1–50 µV/V), thermal hysteresis (80 ppm), and compatibility with 3V/5V supply rails and low-noise ADC/DAC biasing.
Technical Context
This device operates as a shunt-independent, series-connected bandgap-based voltage reference with internal trimming for factory-set 5.0V output. Its architecture eliminates external resistor dependency and maintains supply current virtually independent of input voltage (75–110 µA over VIN = 5.2V to 12.6V), reducing system power variability.
It features a fixed-output topology (non-adjustable), uses no ADJ pin, and supports continuous short-circuit protection to IN or GND. The SO-8 package includes four NC pins (pins 2, 3, 5, 6) and is rated for –40°C to +85°C operation with 471mW maximum power dissipation at TA = +70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000 V ±1% at +25°C; 4.900–5.100 V over –40°C to +85°C - ensures stable reference for 12-bit ADCs without calibration. |
| Tempco | 15 ppm/°C typical, ≤50 ppm/°C max - limits drift to <±0.25% over full temperature range. |
| Dropout Voltage | 200 mV - allows operation with VIN as low as 5.2V while maintaining regulation. |
| Supply Current | 80 µA typical, ≤145 µA over temperature - enables multi-year battery life in 10µA-sleep systems. |
| Load Regulation | 0.65–2 mV/mA (sourcing); 1.9–20 mV/mA (sinking) - defines output shift under DAC or op-amp loading. |
| Noise (0.1–10 Hz) | 35 µVP-P - low enough for 16-bit SAR ADC reference without external filtering. |
| PSRR | ≥80 dB at 100 Hz - rejects ripple from noisy switching supplies feeding the reference input. |
Pinout & Package
The MAX6150ESA+ is housed in an 8-pin SO (Small Outline) package with exposed pad (RoHS-compliant, + suffix). Pin 1 is IN, pin 4 is GND, pin 8 is OUT; pins 2, 3, 5, and 6 are No Connection (N.C.) and must remain unconnected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input voltage supply rail (5.2V to 12.6V); requires local 0.1µF ceramic bypass for optimal transient rejection. |
| 2 | N.C. | No internal connection; must be left floating or grounded per layout best practice-no functional impact. |
| 3 | N.C. | No internal connection; electrically isolated; no routing or soldering required. |
| 4 | GND | Analog ground reference; must connect to clean, low-impedance system ground plane near device. |
| 5 | N.C. | No internal connection; unused pin; avoid routing traces or vias beneath it. |
| 6 | N.C. | No internal connection; no electrical function; PCB footprint may omit copper for thermal relief. |
| 7 | N.C. | No internal connection; not bonded; serves only mechanical alignment in SO-8 mold. |
| 8 | OUT | Stable 5.0V reference output; drives capacitive loads ≤10nF; connects directly to ADC REF+ or DAC VREF. |
Key Features
| Feature | Design Value |
|---|---|
| Low 200mV dropout | Enables use in 5V systems where input margin is constrained-no need for ≥6V supply rails. |
| 75–145 µA supply current | Independent of input voltage variation, simplifying battery-life estimation and eliminating dynamic current spikes. |
| Stable with 0–10nF capacitive loads | Eliminates need for output capacitor; avoids phase-margin degradation and startup oscillation risks. |
| ±1% initial accuracy | Reduces or eliminates system-level calibration steps for mid-resolution data converters (12–14 bit). |
| Guaranteed ≤50ppm/°C tempco | Meets industrial-grade drift requirements without external compensation circuitry. |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node sampling temperature/humidity at 1Hz using a 12-bit ADC. IC Role / Device Role / Timing Role: Provides stable 5.0V reference for ADC conversion and microcontroller VREF, ensuring consistent LSB size across temperature. Use Value: 200mV dropout extends usable battery voltage down to 5.2V; 80µA quiescent current enables >5-year operation on two AA cells. | Use Scenario: 4–20mA loop-powered transmitter with HART modulation, housing analog signal conditioning and DAC output stage. IC Role / Device Role / Timing Role: Supplies precise 5.0V reference to DAC and instrumentation amplifier, defining full-scale output accuracy. Use Value: ≤50ppm/°C tempco ensures <±0.1% FS error over –40°C to +85°C ambient; 0.65mV/mA load regulation minimizes gain error from DAC bias current. |
| Medical Point-of-Care Monitors | Test & Measurement Front-Ends |
Use Scenario: Handheld ECG device digitizing analog leads with 16-bit sigma-delta ADC and real-time digital filtering. IC Role / Device Role / Timing Role: Low-noise 5.0V reference for ADC reference input and analog front-end biasing. Use Value: 35µVP-P (0.1–10Hz) noise contributes <0.5 LSB error in 16-bit conversion; PSRR >80dB suppresses SMPS coupling into reference path. | Use Scenario: Benchtop multimeter with auto-ranging, dual-slope integration, and 5½-digit resolution. IC Role / Device Role / Timing Role: Primary voltage reference for internal DMM reference ladder and calibration subsystem. Use Value: Thermal hysteresis of 80ppm ensures repeatability after thermal cycling; ±1% initial accuracy supports factory calibration traceability to NIST standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARZ | 5.0V output, ±0.1% initial accuracy, 3ppm/°C max tempco, 4.5µA supply current, SOT23-5 package | Ultra-low power and higher accuracy; requires different pinout and external decoupling; not drop-in compatible | Select ADR3450ARZ when sub-0.1% accuracy and <10µA IQ are mandatory; MAX6150ESA+ preferred for cost-sensitive 5V systems with moderate accuracy needs. |
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C max tempco, 950µA supply current, SO-8 package | Higher precision and lower drift but 12× higher supply current; same SO-8 footprint but different pin mapping (GND on pin 4, OUT on pin 6) | Choose REF5050AIDR for metrology-grade applications requiring <0.05% error; MAX6150ESA+ remains optimal for general-purpose 5V reference where power and cost are critical. |
Compared with ADR3450ARZ and REF5050AIDR, the MAX6150ESA+ trades ultra-low drift and micro-power for significantly lower unit cost, proven robustness in industrial temperature ranges, and direct compatibility with legacy SO-8 layouts-making it ideal for high-volume 5V embedded systems where ±1% accuracy suffices.
Availability
MAX6150ESA+ is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical point-of-care monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX6150ESA+ 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 precision analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing applications.
The MAX61xx family was developed specifically for low-power, high-stability voltage referencing in space-constrained, battery-operated, and 3V/5V embedded systems-emphasizing dropout performance, supply-current predictability, and ease of integration.
FAQ
What is the guaranteed temperature coefficient specification for MAX6150ESA+?
The MAX6150ESA+ has a guaranteed maximum temperature coefficient of 50ppm/°C over the full operating range of –40°C to +85°C. Typical performance is 15ppm/°C. This spec ensures output voltage drift remains within ±0.25% across temperature, supporting 12-bit system accuracy without calibration. The MAX6150ESA+ datasheet confirms this value in the Electrical Characteristics table under TCVOUT parameter.
Can MAX6150ESA+ operate from a 5.0V supply rail?
No-MAX6150ESA+ requires a minimum input voltage of 5.2V due to its 200mV dropout specification. At 5.0V input, the device cannot maintain regulated 5.0V output. Operation is guaranteed only for VIN ≥ 5.2V (up to 12.6V). This requirement is explicitly stated in the Electrical Characteristics table under Supply Voltage (VIN) conditions for MAX6150.
Does MAX6150ESA+ require an output capacitor for stability?
No, the MAX6150ESA+ is internally compensated and stable with capacitive loads from 0nF to 10nF. An output capacitor is not required and may degrade transient response. If used for charge reservoir purposes (e.g., buffering a DAC input), total capacitance must not exceed 10nF to ensure optimal settling time. This behavior is confirmed in the Applications Information section under "Output Bypassing".
What are the absolute maximum ratings for MAX6150ESA+ input voltage?
The absolute maximum input voltage rating for MAX6150ESA+ is +13.5V with respect to GND. Exceeding this voltage-even momentarily-may cause permanent damage. The recommended operating range is 5.2V to 12.6V. This limit is specified in the Absolute Maximum Ratings table on page 2 of the MAX6150ESA+ datasheet.
How does supply current vary with input voltage in MAX6150ESA+?
The MAX6150ESA+ exhibits near-constant supply current across its input voltage range: 75–110 µA at +25°C and up to 145 µA over –40°C to +85°C, regardless of VIN (5.2V to 12.6V). Change in supply current vs. input voltage (∆IQ/∆VIN) is only 1.7–6 µA/V-confirming minimal dependence. This behavior is documented in the Electrical Characteristics table and illustrated in Figure 1 (Supply Current vs. Input Voltage).
MAX6150ESA+ 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
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 35µVp-p
- Noise - 10Hz to 10kHz:
- 900µVp-p
- Voltage - Input:
- 5.2V ~ 12.6V
- Current - Supply:
- 145µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6150ESA+ FAQ
1.How can I place an order for MAX6150ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6150ESA+ 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 MAX6150ESA+ reliable?
The price and inventory of MAX6150ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6150ESA+ is usually 5 days.
3.What payment methods are accepted for MAX6150ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6150ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6150ESA+?
MAX6150ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6150ESA+ 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 MAX6150ESA+?
For technical support, including MAX6150ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6150ESA+ requirements.
6.How does Aetrix verify that MAX6150ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6150ESA+ 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 MAX6150ESA+ meets industry standards.
7.What is the process for return or replacement of MAX6150ESA+?
All MAX6150ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6150ESA+, 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 MAX6150ESA+ part is unused and in its original packaging.
Return procedure for MAX6150ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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