1 Features

1. Small package size:

. WQFN 3 mm × 3 mm

. 8 channels configurable as any combination of:

. Up to 8 analog inputs, digital inputs, or digital

outputs

. GPIOs for I/O expansion:

. Open-drain, push-pull digital outputs

. Wide operating ranges:

. AVDD: 2.35 V to 5.5 V

. DVDD: 1.65 V to 5.5 V

. .40°C to +85°C temperature range

. Enhanced-SPI digital interface:

. High-speed, 60-MHz interface

. Achieve full throughput with >13.5-MHz SPI

. Programmable averaging filters:

. Programmable sample size for averaging

. Averaging with internal conversions

. 16-bit resolution

2 Applications

. Macro remote radio units (RRU)

. Battery management systems (BMS)

. String inverters

. Central inverters

3 Description

The TLA2518 is an easy-to-use, 8-channel,

multiplexed, 12-bit, 1-MSPS, successive

approximation register analog-to-digital converter

(SAR ADC). The eight channels can be

independently configured as either analog inputs,

digital inputs, or digital outputs. The device has an

internal oscillator for the ADC conversion process.

The TLA2518 communicates via an SPI compatible

interface and supports averaging multiple data

samples with a single start of conversion. The built-in

programmable averaging filters help reduce noise

from the analog inputs and reduce the number of

data samples required to be read by the host.