MICROCHIP MCP3021A5T-E/OT

A 10-bit successive approximation ADC with a single-ended input and ultra-low power consumption. Built on advanced CMOS technology, it delivers maximum conversion current and standby current as low as 250 μA and 1 μA, respectively. The low current consumption combined with a compact SOT-23 package makes it well-suited for battery-powered and remote data acquisition applications. Communication is via a 2-wire I²C-compatible interface, supporting both standard (100 kHz) and fast (400 kHz) I²C modes. An on-chip conversion clock provides independent timing for the I²C and conversion clocks. The device is addressable, allowing up to 8 devices on a single 2-wire bus. Operates from a single supply with a voltage range of 2.7V to 5.5V, and offers excellent DNL and INL errors with a maximum of ±1 LSB for both.

• 10-bit resolution
• ±1 LSB DNL, ±1 LSB INL (maximum)
• 250 μA maximum conversion current
• 5 nA typical standby current, 1 μA (maximum)
• I²C serial interface compatible - 100 kHz I²C standard mode - 400 kHz I²C fast mode
• Up to 8 devices on a single two-wire bus
• 22.3 ksps conversion rate in I²C fast mode
• Single-ended analog input channel
• On-chip sample-and-hold circuit
• On-chip conversion clock module
• Single-supply operating voltage: 2.7V to 5.5V
• Temperature range: Extended grade: -40°C to +125°C
• Small SOT-23 package

• Data logging
• Multi-zone monitoring
• Handheld portable applications
• Battery-powered test equipment
• Remote or telemetry data acquisition