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Analog Devices Inc./Maxim Integrated MAX6195CESA+
- Part No.:
- MAX6195CESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX6195CESA+.pdf
- Description:
- IC VREF SERIES 0.2% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
MAX6195CESA+ from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering 5.000V output with ±2mV initial accuracy, 5ppm/°C max temperature coefficient, and 35µA max quiescent current - ideal for high-accuracy ADC/DAC biasing in battery-powered handheld instruments.
For engineers reviewing the MAX6195CESA+ datasheet, MAX6195CESA+ pinout, MAX6195CESA+ application, or MAX6195CESA+ equivalent, this page provides verified electrical specs, SO-8 package details, load-regulation behavior at 500µA, dropout performance (100mV @ 500µA), and real-world application context for precision analog systems.
Technical Context
The MAX6195CESA+ is a series-mode bandgap voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve <5ppm/°C temperature drift and ±2mV initial tolerance. It operates over 5.2V to 12.6V input range (VOUT + 0.2V min) and supports bidirectional load currents up to ±500µA.
Internally compensated for stability with capacitive loads up to 2.2nF, it achieves 220µs turn-on settling time to 0.1% and exhibits 0.17µV/µA load regulation and 25µV/V line regulation - enabling use in fast-settling, low-noise data acquisition front-ends without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±2mV (±0.04% initial accuracy at +25°C) |
| Temp Coefficient | ≤5ppm/°C (max drift over -40°C to +85°C; enables <0.5mV total variation in industrial temp range) |
| Quiescent Current | ≤35µA (ultra-low power draw; stable across input voltage; extends battery life in portable instruments) |
| Dropout Voltage | 100mV @ 500µA load (enables operation from 5.1V supply in 5V systems; minimal headroom requirement) |
| Load Regulation | 0.17µV/µA (0.085mV shift over full ±500µA load range; critical for ratiometric ADC reference stability) |
| Line Regulation | 25µV/V (0.125mV shift over 5.2V–12.6V input; ensures reference integrity despite supply ripple or variation) |
| Noise (0.1–10Hz) | 240µVRMS (low-frequency noise floor suitable for high-resolution 16–24-bit converter references) |
Pinout & Package
MAX6195CESA+ is housed in an 8-pin SO (Small Outline) package, RoHS-compliant and rated for -40°C to +85°C operation. Pin 1 is marked with a beveled corner or dot; pins 1, 3, 5, 7, and 8 are no-connect (N.C.) terminals not bonded internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (IN) | Supply Voltage Input | Accepts 5.2V–12.6V input; must exceed VOUT by ≥100mV for regulation; supplies internal bandgap core and output stage |
| Pin 4 (GND) | Analog Ground Reference | Primary ground return for reference output and internal circuitry; requires low-impedance connection to system AGND |
| Pin 6 (OUT) | Precision Reference Output | Delivers regulated 5.000V ±2mV; capable of sourcing/sinking up to ±500µA while maintaining specified accuracy and dropout |
| Pins 1,3,5,7,8 (N.C.) | No Connection | Not internally connected; must remain unconnected on PCB; no routing or thermal relief required |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±2mV (0.04%) - eliminates need for system-level trimming in portable test equipment and sensor signal chains |
| Temperature Stability | ≤5ppm/°C - ensures <0.25mV total drift over full -40°C to +85°C range, critical for unheated industrial field instruments |
| Capacitive Load Tolerance | Stable with 0–2.2nF output capacitance - supports direct connection to ADC input caps without oscillation risk |
| Bidirectional Load Drive | ±500µA sink/source capability - enables use in both sourcing (e.g., DAC reference) and sinking (e.g., op-amp bias) configurations |
| Low Dropout | 100mV @ 500µA - allows operation from single Li-ion cell (4.2V) with LDO pre-regulator, minimizing power loss |
Applications
| Hand-Held Instruments | Analog-to-Digital Converters |
|---|---|
|
Use Scenario: Portable multimeter or data logger powered by two AA batteries (3V) with boost converter feeding 5.2V rail. IC Role / Device Role / Timing Role: Primary 5V reference for 16-bit SAR ADC measuring sensor outputs. Use Value: ±2mV initial accuracy and ≤5ppm/°C drift ensure measurement repeatability across battery discharge and ambient temperature shifts. |
Use Scenario: High-resolution 24-bit sigma-delta ADC in industrial process transmitter with isolated 5V supply. IC Role / Device Role / Timing Role: Ratiometric reference for ADC conversion, directly tied to sensor excitation current source. Use Value: 0.17µV/µA load regulation prevents gain error when excitation current varies dynamically during conversion cycles. |
| Industrial Process Control | Precision 3V/5V Systems |
|
Use Scenario: Loop-powered 4–20mA transmitter with microcontroller, analog front-end, and HART modem. IC Role / Device Role / Timing Role: Stable 5V reference for DAC generating precise 4–20mA loop current via voltage-to-current converter. Use Value: 25µV/V line regulation maintains current accuracy despite supply ripple from switching HART communication. |
Use Scenario: FPGA-based digital power monitor requiring accurate 5V and 3.3V rails derived from common 5V supply. IC Role / Device Role / Timing Role: Master 5V reference for monitoring ADC that measures 3.3V rail via resistor divider. Use Value: Low 35µA quiescent current minimizes loading on main 5V rail, preserving margin for other system loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050IDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C TC, 950µA quiescent current, SO-8 | Higher power consumption; better TC but larger supply current limits battery life | Select REF5050IDR only when ultra-low TC (<3ppm/°C) outweighs micropower requirements |
| ADR4550BRZ | 5.0V output, ±0.02% initial accuracy, 3ppm/°C TC, 950µA quiescent current, SO-8 | Superior accuracy and TC, but 27× higher supply current; requires heatsinking at full load | Choose ADR4550BRZ for lab-grade metrology where power is secondary to long-term stability |
Compared with REF5050IDR and ADR4550BRZ, MAX6195CESA+ delivers best-in-class micropower operation (35µA vs. >900µA) with adequate accuracy (±2mV) and TC (≤5ppm/°C) for portable and embedded instrumentation - making it optimal when battery runtime and thermal constraints dominate.
Availability
MAX6195CESA+ is available at Aetrix Electronics and suitable for handheld instruments, precision ADC/DAC reference circuits, and industrial process control systems requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6195CESA+ 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 and mixed-signal ICs for demanding industrial, medical, and communications applications.
The MAX6190–MAX6195/MAX6198 family was engineered specifically for micropower, high-accuracy voltage referencing in space-constrained, battery-operated measurement systems - emphasizing low dropout, wide input range, and exceptional temperature stability.
FAQ
What is the maximum load current supported by MAX6195CESA+ while maintaining regulation?
MAX6195CESA+ supports bidirectional load currents from -500µA to +500µA while maintaining specified accuracy and dropout voltage. At ±500µA, the device exhibits ≤100mV dropout and retains its ±2mV initial accuracy over temperature. Exceeding this range may cause output deviation beyond guaranteed specifications or thermal stress.
Does MAX6195CESA+ require an external output capacitor for stability?
No, MAX6195CESA+ is internally compensated and stable with output capacitance ranging from 0 to 2.2nF. An external capacitor is optional and recommended only in applications with fast load transients or supply ripple to improve transient response - not for basic stability.
What is the minimum input voltage required for MAX6195CESA+ to regulate at full load?
The minimum input voltage for MAX6195CESA+ is VOUT + 0.2V = 5.2V under full 500µA load conditions. This 200mV headroom ensures regulation integrity; at lighter loads, dropout decreases - e.g., 100mV at 500µA - but design margin should maintain ≥5.2V input.
How does MAX6195CESA+ compare to MAX6195BESA+ in accuracy and temperature coefficient?
MAX6195CESA+ offers ±2mV initial accuracy and ≤5ppm/°C temperature coefficient, whereas MAX6195BESA+ provides ±5mV accuracy and ≤10ppm/°C TC. Both share identical pinout, package, and electrical behavior outside these trimmed parameters - C-grade is selected for highest-precision applications.
Can MAX6195CESA+ be used in a sinking configuration to bias an op-amp input?
Yes, MAX6195CESA+ is fully bidirectional and can sink up to 500µA. When used to bias an op-amp input (e.g., setting common-mode voltage), it maintains regulation as long as the sink current stays within -500µA and input voltage remains ≥5.2V - confirmed in Electrical Characteristics tables.
MAX6195CESA+ 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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 25ppm/°C
- Noise - 0.1Hz to 10Hz:
- 120µVp-p
- Noise - 10Hz to 10kHz:
- 240µVrms
- Voltage - Input:
- 5.2V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX6195CESA+ FAQ
1.How can I place an order for MAX6195CESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6195CESA+ 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 MAX6195CESA+ reliable?
The price and inventory of MAX6195CESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6195CESA+ is usually 5 days.
3.What payment methods are accepted for MAX6195CESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6195CESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6195CESA+?
MAX6195CESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6195CESA+ 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 MAX6195CESA+?
For technical support, including MAX6195CESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6195CESA+ requirements.
6.How does Aetrix verify that MAX6195CESA+ is sourced from the original manufacturer or authorized distributors?
All MAX6195CESA+ 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 MAX6195CESA+ meets industry standards.
7.What is the process for return or replacement of MAX6195CESA+?
All MAX6195CESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX6195CESA+, 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 MAX6195CESA+ part is unused and in its original packaging.
Return procedure for MAX6195CESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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