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Analog Devices Inc./Maxim Integrated ICL8069CCSA
- Part No.:
- ICL8069CCSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICL8069CCSA.pdf
- Description:
- IC VREF SHUNT 1.626% 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,020
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Product details
Overview
ICL8069CCSA from Maxim Integrated is a 1.2V temperature-compensated bandgap voltage reference in 8-pin SO package, specified for 0°C to +70°C operation, with guaranteed 10ppm/°C max temperature coefficient, 50µA minimum reverse current capability, and 5µV RMS noise (10Hz–10kHz). It serves as a stable low-voltage reference in precision analog signal chains.
For engineers reviewing the ICL8069CCSA datasheet, ICL8069CCSA pinout, ICL8069CCSA application, or ICL8069CCSA equivalent, key selection criteria include low-noise 1.2V output stability under microamp-level bias, SO-8 thermal and layout compatibility, and qualification for commercial-temperature portable instrumentation and data converter reference designs.
Technical Context
The ICL8069CCSA implements a two-terminal bandgap reference topology operating in reverse-biased mode, delivering a fixed 1.2V nominal output across 50µA–5mA reverse current. Its internal compensation ensures monotonic TC behavior over 0°C to +70°C without external trimming.
Stability is maintained via low dynamic impedance (<2Ω typical) and integrated noise suppression-verified by 5µV RMS noise at 10Hz–10kHz and <15mV output change over full reverse current range. No external capacitor is required unless stray capacitance exceeds 200pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.20V to 1.25V at 500µA reverse current - defines absolute accuracy window for 12-bit+ ADC/DAC reference use |
| Tempco | ≤10ppm/°C max - enables ≤0.07% full-scale drift over 0°C to +70°C in battery-powered instruments |
| Reverse Current Range | 50µA to 5mA - supports ultra-low-power sensor interfaces and energy-harvesting systems |
| RMS Noise (10Hz–10kHz) | 5µV - limits quantization uncertainty to <0.0012 LSB in 16-bit 1.2V full-scale conversions |
| Dynamic Impedance | <2Ω - maintains regulation stability when driving 10kΩ load with <20mV droop |
| Operating Temp Range | 0°C to +70°C - qualified for commercial-grade embedded control and portable test equipment |
Pinout & Package
ICL8069CCSA uses an 8-pin SOIC (SO) package per MS012 outline: 3.94mm × 4.90mm body, 1.27mm lead pitch, gull-wing leads. Pin 1 = Anode; Pins 2–7 = No Connect; Pin 8 = Cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | DC return path for reverse-bias current; must connect to system ground or low-impedance sink |
| Pins 2–7 | No Connect | Internally unconnected; no PCB trace or thermal pad required |
| Pin 8 | Cathode | Reference output node; delivers regulated 1.2V when reverse current flows from cathode to anode |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed 10ppm/°C tempco | Enables single-point calibration in portable DVMs without field recalibration over operating temperature |
| 50µA minimum bias current | Allows direct interface with micropower op-amps and SAR ADC reference inputs without active buffering |
| Low 5µV RMS noise | Supports high-resolution metrology applications where reference noise dominates system ENOB |
| SO-8 footprint | Provides standard surface-mount assembly compatibility and thermal performance matching industry reference ICs |
Applications
| Portable Digital Multimeters | 12-Bit Data Acquisition Systems |
|---|---|
Use Scenario: Battery-powered handheld DMM requiring stable 1.2V reference for dual-slope ADC core (e.g., ICL7107). IC Role / Device Role / Timing Role: Two-terminal shunt reference providing precise 1.2V threshold for integrator ramp generation. Use Value: 10ppm/°C tempco ensures <±0.05% reading error over 0°C–40°C ambient without auto-zero cycles. | Use Scenario: Industrial sensor signal conditioning module digitizing thermocouple outputs with 12-bit SAR ADC. IC Role / Device Role / Timing Role: Low-noise voltage reference for ADC VREF input, biased at 100µA to minimize self-heating. Use Value: 5µV RMS noise contributes <0.002% of full-scale error-below LSB weight for 12-bit conversion. |
| Threshold Detectors for Low-Voltage Logic | Low-Power Voltage Regulator Feedback |
Use Scenario: Brown-out detection circuit monitoring 1.8V supply rail in wearables using comparator with hysteresis. IC Role / Device Role / Timing Role: Precision 1.2V reference feeding non-inverting input of rail-to-rail comparator. Use Value: 50µA min reverse current allows direct connection to comparator's input bias network without gain error. | Use Scenario: Feedback node of adjustable LDO regulating 1.5V output from 3.3V input in IoT endpoint. IC Role / Device Role / Timing Role: Stable 1.2V reference connected to resistor divider on LDO feedback pin to set output voltage. Use Value: Low dynamic impedance (<2Ω) prevents loop instability when divider impedance exceeds 10kΩ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6126AASA21 | 1.21V output, 3ppm/°C max tempco, 50µA min supply current, SO-8 | Higher initial accuracy and lower drift; requires 50µA supply (not reverse-biased) | Preferred for new designs needing tighter long-term stability; not drop-in due to 3-terminal vs. 2-terminal topology |
| TLV431ACDBVR | 1.24V output, 100ppm/°C max tempco, adjustable via resistors, SOT-23-3 | Programmable output; higher tempco and noise; smaller package | Suitable for cost-sensitive, space-constrained applications where ±1% reference tolerance is acceptable |
Compared with ICL8069CCSA, MAX6126AASA21 offers superior drift performance but demands redesign for 3-terminal biasing, while TLV431ACDBVR trades accuracy and noise for footprint reduction and flexibility-neither is pin-compatible, but both serve overlapping low-voltage reference roles.
Availability
ICL8069CCSA is available at Aetrix Electronics and suitable for portable instrumentation, precision data acquisition systems, and low-power threshold detection circuits requiring stable component supply and legacy design continuity.
Supply support for ICL8069CCSA 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, communications, and consumer applications.
The ICL8069CCSA belongs to Maxim's legacy voltage reference product line, engineered specifically for low-noise, low-current, 1.2V bandgap references in commercial-temperature portable and test equipment.
FAQ
What is the operating temperature range for ICL8069CCSA?
The ICL8069CCSA is rated for operation from 0°C to +70°C. This commercial-grade temperature specification is confirmed in the Maxim datasheet ordering table and applies to all SO-8 variants including ICL8069CCSA. Operation outside this range may result in parametric shift beyond guaranteed limits.
Is ICL8069CCSA a two-terminal or three-terminal device?
The ICL8069CCSA is a two-terminal shunt voltage reference: Pin 1 (Anode) connects to ground or current sink, and Pin 8 (Cathode) provides the 1.2V reference output. Pins 2–7 are internally unconnected-no third terminal exists for voltage setting or enable control.
What is the minimum reverse current required for ICL8069CCSA regulation?
The ICL8069CCSA requires a minimum reverse current of 50µA to maintain regulation within specifications. Below this level, output voltage deviates significantly-datasheet graphs show >100mV drop at 10µA reverse current. Designers must ensure bias networks deliver ≥50µA across temperature and supply variation.
Does ICL8069CCSA require an external capacitor for stability?
An external capacitor is not required for basic stability of ICL8069CCSA under normal conditions. However, if circuit strays exceed 200pF-as in long PCB traces or high-capacitance loads-a 4.7µF shunt capacitor at the cathode is recommended to prevent oscillation, per Note 2 in the Maxim datasheet.
Why is ICL8069CCSA marked "Not Recommended for New Designs"?
ICL8069CCSA is marked "Not Recommended for New Designs" because its wafer process was discontinued by Maxim's external foundry. While existing stock remains functional and supported, Maxim advises new designs to consider alternatives like MAX6126AASA21 for improved long-term supply assurance and enhanced specs.
ICL8069CCSA 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:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 1.23V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±1.626%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 5µVp-p
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 50 µA
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ICL8069CCSA FAQ
1.How can I place an order for ICL8069CCSA through Aetrix?
Please submit a Request for Quotation (RFQ) for ICL8069CCSA 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 ICL8069CCSA reliable?
The price and inventory of ICL8069CCSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICL8069CCSA is usually 5 days.
3.What payment methods are accepted for ICL8069CCSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICL8069CCSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICL8069CCSA?
ICL8069CCSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICL8069CCSA 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 ICL8069CCSA?
For technical support, including ICL8069CCSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICL8069CCSA requirements.
6.How does Aetrix verify that ICL8069CCSA is sourced from the original manufacturer or authorized distributors?
All ICL8069CCSA 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 ICL8069CCSA meets industry standards.
7.What is the process for return or replacement of ICL8069CCSA?
All ICL8069CCSA units undergo pre-shipment inspection (PSI). If there is an issue with ICL8069CCSA, 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 ICL8069CCSA part is unused and in its original packaging.
Return procedure for ICL8069CCSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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