|Номер в каталоге||ADC0831|
|Компоненты Описание||8-Bit Serial I/O A/D Converters with Multiplexer Options|
|ADC0831 Datasheet PDF : 41 Pages |
ADC0831-N, ADC0832-N, ADC0834-N, ADC0838-N
SNAS531B – AUGUST 1999 – REVISED MARCH 2013
The following specifications apply for VCC = 5V, tr = tf = 20 ns and 25°C unless otherwise specified.
fCLK, Clock Frequency
tC, Conversion Time
Not including MUX Addressing Time
Clock Duty Cycle(4)
tSET-UP, CS Falling Edge or Data Input Valid
to CLK Rising Edge
tHOLD, Data Input Valid after CLK Rising
tpd1, tpd0—CLK Falling Edge to Output Data
Data MSB First
Data LSB First
t1H, t0H,—Rising Edge of CS to Data Output
CL=10 pF, RL=10k (See TRI-STATE
Test Circuits and Waveforms)
and SARS Hi–Z
CL=100 pf, RL=2k
CIN, Capacitance of Logic Input
COUT, Capacitance of Logic Outputs
(1) Typicals are at 25°C and represent most likely parametric norm.
(2) Tested limits are ensured to TI's AOQL (Average Outgoing Quality Level).
(3) Ensured but not 100% production tested. These limits are not used to calculate outgoing quality levels.
(4) A 40% to 60% clock duty cycle range insures proper operation at all clock frequencies. In the case that an available clock has a duty
cycle outside of these limits, the minimum, time the clock is high or the minimum time the clock is low must be at least 1 μs. The
maximum time the clock can be high is 60 μs. The clock can be stopped when low so long as the analog input voltage remains stable.
(5) Since data, MSB first, is the output of the comparator used in the successive approximation loop, an additional delay is built in (see
ADC0838-N Functional Block Diagram) to allow for comparator response time.
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Product Folder Links: ADC0831-N ADC0832-N ADC0834-N ADC0838-N
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