Rainbow Electronics ADC1175 - Manual

ADC1175
8-Bit, 20MHz, 60mW A/D Converter
General Description
The ADC1175 is a low power, 20 Msps analog-to-digital
converter that digitizes signals to 8 bits while consuming just
60 mW of power (typ). The ADC1175 uses a unique archi-
tecture that achieves 7.5 Effective Bits. Output formatting is
straight binary coding.
The excellent DC and AC characteristics of this device,
together with its low power consumption and +5V single
supply operation, make it ideally suited for many video,
imaging and communications applications, including use in
portable equipment. Furthermore, the ADC1175 is resistant
to latch-up and the outputs are short-circuit proof. The top
and bottom of the ADC1175’s reference ladder is available
for connections, enabling a wide range of input possibilities.
The ADC1175 is offered in SOIC (EIAJ) and TSSOP. It is
designed to operate over the commercial temperature range
of -20˚C to +75˚C.
Features
n Internal Sample-and-Hold Function
n Single +5V Operation
n Internal Reference Bias Resistors
n Industry Standard Pinout
n TRI-STATE Outputs
Key Specifications
j Resolution 8 Bits
j Maximum Sampling Frequency 20 Msps (min)
j THD −55 dB (typ)
j DNL 0.75 LSB (max)
j ENOB 7.5 Bits (typ)
j Guaranteed No Missing Codes
j Differential Phase 0.5 Degree (typ)
j Differential Gain 0.4% (typ)
j Power Consumption
(excluding reference current)
60mW (typ)
Applications
n Video Digitization
n Digital Still Cameras
n Set Top Boxes
n Communications
n Medical Imaging
n Personal Computer Video Cameras
n Digital Television
n CCD Imaging
n Electro-Optics
Pin Configuration
ADC1175 Pin Configuration
10009201
March 2003
ADC1
175
8-Bit,
20MHz,
60mW
A/D
Converter
© 2003 National Semiconductor Corporation DS100092 www.national.com