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Product Detailed Parameters
- Description：IC DGTL POT 15KOHM 4TAP 10UMAX
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR)
- 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+T 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 -40°C to +85°C temperature range. The MAX5421 includes an on-chip matching resistor for op amp bias-current compensation. It utilizes a CMOS/TTL logic 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 applications
- 0.025% divider ratio accuracy guaranteed over -40°C to +85°C
- On-chip matching resistor for op amp bias-current compensation
- Low 3µA supply current with single +5V or dual ±5V operation
Applications
- General-purpose programmable noninverting amplifiers
- Programmable instrumentation amplifiers
Procurement Notes
Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Confirm the package type is 10-pin µMAX and the suffix indicates tape and reel packaging. Ensure the operating temperature range matches the extended industrial specification of -40°C to +85°C.
Selection Notes
Select the MAX5421AEUB+T when high-precision voltage division is required for programmable gain amplifiers. The 'A' grade ensures 0.025% ratio accuracy. Choose this part over the MAX5420 if op amp bias-current compensation via the matching resistor is necessary. Verify that the system requires a 2-wire parallel digital interface.
Part Context
This component belongs to the MAX5420/MAX5421 family of digitally programmable precision voltage dividers. The MAX5421 variant specifically includes a matching resistor not present in the MAX5420. The 'E' suffix denotes the extended temperature range (-40°C to +85°C), and the '+T' suffix indicates the 10-pin µMAX package in tape and reel format.
Replacement Considerations
The MAX5420AEUB+T is a functional substitute but lacks the on-chip matching resistor found in the MAX5421. Other accuracy grades within the same package include the MAX5421BEUB+T (0.09% accuracy) and MAX5421CEUB+T (0.5% accuracy).
