CXD1172AP Sony, CXD1172AP Datasheet
CXD1172AP
Related parts for CXD1172AP
CXD1172AP Summary of contents
Page 1
... Tstg Recommended Operating Conditions • Supply voltage • Reference input voltage – • Analog input voltage V IN • Clock pulse width PW1 PW0 • Operating temperature Topr – 1 – CXD1172AP 16 pin DIP (Plastic 0 – – – – 0 –55 to +150 ° ...
Page 2
Block Diagram and Pin Configuration Lower data latchs Upper data latchs CLK Clook generator Pln Description and Equivalent ...
Page 3
Digital Output Compatibility between Analog input voltage and the digital output code is indicated in the chart below. Input signal Step voltage PW1 PW0 Clock N Analog input N – ...
Page 4
Electrical Characteristics Item Fc Conversion speed Supply current I DD Reference pin current I REF Analog input band width BW (–1dB) Analog input capacitance C Reference resistance Offset voltage E V ...
Page 5
Electrical Characteristics Test Circuit } Integral non-linearity error Differential non-linearity Offset voltage + –V A < B COMPARATOR CXD1172A A1 A0 “0” DVM CLK (20MHz) CONTROLLER Maximum operational speed Differential gain error ...
Page 6
Timing Chart 2 Analog input External clock Upper comparators block Upper data Lower reference voltage Lower comparators A block Lower data A Lower comparators B block Lower data B Digital output Vi (1) Vi (2) S (1) C (1) S ...
Page 7
Operation (See Block Diagram and Timing Chart) 1. CXD1172AM/ 2-step parallel system A/D converter featuring a 3-bit upper comparators group and 2 Iower comparators groups of 3-bit each. The reference voltage that is equal to the voltage between ...
Page 8
Latch Up Prevention The CXD1172A is a CMOS IC which requires latch up precautions. Latch up is mainly generated by the lag in the voltage rising time of AV (Pins 10 and 14) and Correct usage a. ...
Page 9
Example when latch up easily occurs a. When analog and digital supplies are from different sources AV DD +5V + When analog and digital supplies are from common source ( (ii) ...
Page 10
ADC and DAC Evaluation Board Silk Side S IN VR1 R1 C3 Component Side Soldering Side Analog VR5 C8 C9 C10 DA OUT R10 VR3 R9 VR4 AGND VR2 ...
Page 11
... Package Outline Unit: mm CXD1172AM SONY CODE EIAJ CODE JEDEC CODE CXD1172AP 16 1 0.5 ± 0.1 1.2 ± 0.15 SONY CODE EIAJ CODE JEDEC CODE 16PIN SOP (PLASTIC) 300mil + 0.4 9.9 – 0 0.45 ± 0.1 1.27 M ± 0.12 PACKAGE STRUCTURE PACKAGE MATERIAL ...