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.