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Product Detailed Parameters
- Description：IC DGTL POT 15KOHM 4TAP 10UMAX
- 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：10-uMAX/uSOP
- Package / Case：10-TFSOP, 10-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 MAX5421AEUB+ is a digitally programmable precision voltage divider designed for programmable gain amplifier (PGA) applications. 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 -40°C to +85°C temperature range. A key feature is the on-chip matching resistor for op amp bias-current compensation. The component uses a CMOS/TTL compatible 2-wire parallel interface and is housed in a 10-pin µMAX package.
Feature Summary
- Four precision noninverting gain ratios (1, 2, 4, and 8) for PGA configurations
- 0.025% divider ratio accuracy guaranteed over -40°C to +85°C
- On-chip matching resistor for op amp bias-current compensation
- Low power consumption with 3µA typical supply current
Applications
- General-purpose programmable noninverting amplifiers
- Programmable instrumentation amplifiers
Procurement Notes
Verify the specific suffix 'AEUB+' against official Analog Devices documentation to confirm the exact accuracy grade, package type, and lead-free status. Ensure compatibility with the required operating temperature range and supply voltage conditions before procurement.
Selection Notes
Select the MAX5421AEUB+ when bias-current compensation is required for high-precision operational amplifiers. Choose this part over the MAX5420 if the application demands an integrated matching resistor to minimize offset voltage errors caused by input bias currents.
Part Context
This component belongs to the MAX5420/MAX5421 family of digitally programmable precision voltage dividers. The MAX5421 variant specifically includes a matching resistor network not present in the MAX5420, making it suitable for applications requiring precise bias current cancellation in amplifier circuits.
Replacement Considerations
The MAX5420AEUA+ serves as a functional alternative but lacks the on-chip matching resistor found in the MAX5421. Verify if the missing matching resistor impacts the circuit's bias current compensation requirements.
