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TDA8785

NXP
Part Number TDA8785
Manufacturer NXP
Description 8-bit high-speed analog-to-digital converter with gain and offset controls
Published Apr 16, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA8785 8-bit high-speed analog-to-digital converter with gain and offset controls Prod...
Datasheet PDF File TDA8785 PDF File

TDA8785
TDA8785

Overview
INTEGRATED CIRCUITS DATA SHEET TDA8785 8-bit high-speed analog-to-digital converter with gain and offset controls Product specification Supersedes data of 1996 Jan 17 File under Integrated Circuits, IC02 1997 Dec 18 Philips Semiconductors Product specification 8-bit high-speed analog-to-digital converter with gain and offset controls FEATURES • 8-bit analog-to-digital converter (ADC) • 8-bit digital-to-analog converter (DAC) • Sampling rate up to 30 Msps for both ADC and DAC • Binary or two’s complement 3-state TTL outputs • TTL compatible inputs and outputs • 100 MHz variable gain amplifier (0 to 20 dB) externally controlled • All analog inputs and outputs are differential (can also be used in single-ended format) • Analog input signal from 0.
1 to 1.
0 V (p-p) differential • Offset amplifier with: – Slow offset control (±250 mV) – Fast offset control (±500 mV) eventually driven by internal DAC.
• ADC output code of 8 (typ.
) when analog input signal and offset correction inputs are 0 V QUICK REFERENCE DATA SYMBOL VCCA1 VCCA2 VCCD VCCO ICCA ICCD ICCO INL DNL fclk(max) B Ptot PARAMETER analog supply voltage 1 analog supply voltage 2 digital supply voltage TTL output supply voltage analog supply current digital supply current TTL output supply current integral non-linearity differential non-linearity maximum clock frequency controlled gain amplifier bandwidth total power dissipation 0 to 20 dB gain; ramp input 0 to 20 dB gain; ramp input ADC and DAC CONDITIONS MIN.
4.
75 4.
75 4.
75 4.
75 − − − − − 30 − − TYP.
5.
0 5.
0 5.
0 5.
0 80 30 9 ±0.
7 ±0.
2 − 100 600 GENERAL DESCRIPTION TDA8785 • Gain, slow offset control inputs and DAC output swing of 1.
5 V (p-p) range (2.
75 ±0.
75 V) • 2.
75 V reference voltage • Internal references for ADC and DAC.
APPLICATIONS • CCD type of systems • Scanner • Copier • Video acquisition.
The TDA8785 is an 8-bit analog-to-digital converter with gain and offset controls for the input signal.
An internal 8-bit DAC provides fast offsets control.
MAX.
...


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