Power Dissipation . . . 40 mW Max
Advanced LinEPIC Single-Poly Process
Provides Close Capacitor Matching for
Better Accuracy
Fast Parallel Processing for DSP and μP
Interface
Either External or Internal Clock Can Be
Used
Conversion Time . . . 6 μs
Total Unadjusted Error . . . ±1 LSB Max
CMOS Technology

description
The TLC1550x and TLC1551 are data acquisition
analog-to-digital converters (ADCs) using a 10-bit,
switched-capacitor, successive-approximation network.
A high-speed, 3-state parallel port directly
interfaces to a digital signal processor (DSP) or
microprocessor (μP) system data bus. D0 through
D9 are the digital output terminals with D0 being
the least significant bit (LSB). Separate power
terminals for the analog and digital portions
minimize noise pickup in the supply leads.
Additionally, the digital power is divided into two
parts to separate the lower current logic from the
higher current bus drivers. An external clock can be
applied to CLKIN to override the internal system
clock if desired.
The TLC1550I and TLC1551I are characterized for
operation from −40°C to 85°C. The TLC1550M is
characterized over the full military range of −55°C
to 125°C.