Introduction; Features; Single Input Channel; Pseudo Differential Input Channels - Texas Instruments TLC4541EVM User Manual

Introduction

1.1 Introduction

1.2 Features

Table 1 - 1. Single Input Channel
Table 1 - 2. Pseudo DIfferential Input Channels
Table 1 - 3. Dual Input Channels
1-2
The series of TLC4541/5, TLC3541/5, TLC2551/2/5 and TLV2541/2/5 are
high-performance low-power, miniature, CMOS, serial analog to digital
converters (ADCs). The low power performance of these ADCs is further
enhanced by an auto-power-down mode incorporated in each series. Three
series of the devices run at a maximum sample rate of 200 Ksps and have their
own internal conversion clock. The TLC2551/2/5 series runs at 360 Ksps and
uses the external SCLK for conversion.
The EVM is designed to accommodate all of the above devices. The analog
input signal is buffered through an operational amplifier follower. The data
output (DO) signal, from the device under test (DUT), is conditioned through
a digital buffer. An on-board voltage reference is generated and buffered to
drive the DUT. An off-board reference, which is user optional, can be supplied
by reconfiguring jumper (W3). The analog electronics operates with bipolar or
unipolar power supplies, by changing two jumpers.
The EVM is a full featured board designed to accommodate ten serial ADCs.
Device types and resolutions are listed in the following tables:
Device Resolution
TLC4541 16 Bits
TLC3541 14 Bits
TLC2551 12 Bits
TLV2541 12 Bits
Device Resolution
TLC4545 16 Bits
TLC3545 14 Bits
TLC2555 12 Bits
TLV2545 12 Bits
Device Resolution
TLC2552 12 Bits
TLV2542 12 Bits