Professional IC Distribution & Technical Solutions

The AD7798BRUZ is a precision, low-power analog-to-digital converter (ADC) manufactured by Analog Devices (not ANADIGICS).

Specifications:

• Resolution: 24-bit
• Channels: 3 differential or 6 pseudo-differential inputs
• Interface: SPI-compatible
• Supply Voltage: 2.7V to 5.25V
• Current Consumption: 350 µA (typical)
• Sampling Rate: 4.17 Hz to 470 Hz
• Input Range: ±VREF (programmable gain: 1, 2, 4, 8, 16, 32, 64, 128)
• Reference Input: External (supports buffered/unbuffered mode)
• Operating Temperature Range: -40°C to +105°C
• Package: 24-lead TSSOP

Descriptions:

The AD7798BRUZ is a low-noise, low-power, 24-bit sigma-delta ADC designed for precision measurement applications. It includes an on-chip programmable gain amplifier (PGA), a reference input, and an internal clock oscillator. The device is suitable for sensor interfaces in industrial, medical, and instrumentation systems.

Features:

• Low Noise: 40 nV RMS at 4.17 Hz (gain = 128)
• Flexible Input Configuration: Supports differential/pseudo-differential inputs
• On-Chip PGA: Gains from 1 to 128
• Internal Clock Oscillator: No external clock required
• Power-Down Mode: Reduces power consumption when idle
• Built-In Diagnostics: Open-circuit detection

This ADC is commonly used in weigh scales, temperature monitoring, and pressure sensing applications.