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Product Detailed Parameters
- Description：IC DGTL POT 15KOHM 4TAP 8UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Taper：Linear
- Configuration：Potentiometer
- Number of Circuits：1
- Number of Taps：4
- Resistance (Ohms)：15k
- Interface：Parallel
- Memory Type：Volatile
- Voltage - Supply：5V, ±5V
- Features：-
- Tolerance：-
- Temperature Coefficient (Typ)：-
- Mounting Type：Surface Mount
- Supplier Device Package：8-uMAX/uSOP
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Operating Temperature：-40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ)：500
- Grade：-
- Qualification：-
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Overview
The MAX5420AEUA+ is a digitally programmable precision voltage divider optimized for programmable gain amplifier (PGA) configurations. It operates from a single +5V or dual ±5V supply with a typical supply current of 3µA. The device provides four noninverting gain ratios: 1, 2, 4, and 8. It features a resistor ratio accuracy of 0.025% over the extended temperature range of -40°C to +85°C. The end-to-end resistance between terminals H and L is 15kΩ. Control is managed via a CMOS/TTL compatible 2-wire parallel interface using D0 and D1 inputs.
Feature Summary
- Four precision divider ratios providing noninverting gains of 1, 2, 4, and 8
- Resistor ratio accuracy of 0.025% guaranteed over -40°C to +85°C
- Low power consumption with only 3µA supply current
- CMOS/TTL logic compatible 2-wire parallel digital interface
Applications
- General-purpose programmable noninverting amplifiers
- Programmable instrumentation amplifiers
Procurement Notes
Verify component authenticity through authorized Analog Devices distributors. Confirm package marking matches the 8-pin µMAX specification. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement orders.
Selection Notes
Select the MAX5420AEUA+ when high-precision gain control is required without on-chip bias-current compensation. Use the MAX5421 variant if an integrated matching resistor for op amp bias-current compensation is necessary. Verify that the 15kΩ input impedance meets the source circuit requirements.
Part Context
This component belongs to the MAX5420/MAX5421 family of digitally programmable precision voltage dividers. The 'A' suffix indicates a 0.025% ratio accuracy grade. The 'EUA+' designation specifies the 8-pin µMAX package and lead-free construction. It serves as a core element in precision analog signal conditioning circuits.
Replacement Considerations
The MAX5420BEUA+ offers 0.09% accuracy, and the MAX5420CEUA+ offers 0.5% accuracy within the same package. For applications requiring bias-current compensation, the MAX5421 series provides a matching resistor but uses a 10-pin package.
