Datasheet

ADS8363
ADS7263
ADS7223
www.ti.com
SBAS523B OCTOBER 2010REVISED JANUARY 2011
TIMING CHARACTERISTICS
(1)
Over the recommended operating free-air temperature range of –40°C to +125°C, and DVDD = 2.3V to 5.5V, unless
otherwise noted.
ADS8363, 7263, 7223
PARAMETER TEST CONDITIONS MIN MAX UNIT
t
DATA
Data throughput f
CLK
= max 1 ms
Half-clock mode 17.5 t
CLK
t
CONV
Conversion time
Full-clock mode 35 t
CLK
t
ACQ
Acquisition time 100 ns
Half-clock mode 0.5 20 MHz
f
CLK
CLOCK frequency
Full-clock mode 1 40 MHz
Half-clock mode 50 2000 ns
t
CLK
CLOCK period
Full-clock mode 25 1000 ns
t
CLKL
CLOCK low time 11.25 ns
t
CLKH
CLOCK high time 11.25 ns
t
1
CONVST rising edge to first CLOCK rising edge 12 ns
10 ns
t
2
CONVST high time
Half-clock mode: timing
1 t
CLK
modes II and IV only
Half-clock mode: timing
t
3
RD high time modes II, IV, SII, and SIV 1 t
CLK
only
t
S1
RD high to CLOCK falling edge setup time 5 ns
t
H1
RD high to CLOCK falling edge hold time 5 ns
t
S2
Input data to CLOCK falling edge setup time 5 ns
t
H2
Input data to CLOCK falling edge hold time 4 ns
2.3V < DVDD < 3.6V 19 ns
t
D1
CONVST rising edge to BUSY high delay
(2)
4.5V < DVDD < 5.5V 16 ns
CLOCK 18th falling edge (half-clock mode) or 2.3V < DVDD < 3.6V 25 ns
t
D2
24th rising edge (full-clock mode) to BUSY low
4.5V < DVDD < 5.5V 20 ns
delay
Half-clock mode, 2.3V <
14 ns
DVDD < 3.6V
t
D3
CLOCK rising edge to next data valid delay
Half-clock mode, 4.5V <
12 ns
DVDD < 5.5V
t
H3
Output data to CLOCK rising edge hold time Half-clock mode 3 ns
t
D4
CLOCK falling edge to next data valid delay Full-clock mode 19 ns
t
H4
Output data to CLOCK falling edge hold time Full-clock mode 7 ns
2.3V < DVDD < 3.6V 16 ns
t
D5
RD falling edge to first data valid
4.5V < DVDD < 5.5V 12 ns
t
D6
CS rising edge to SDOx 3-state 6 ns
(1) All input signals are specified with t
R
= t
F
= 1.5ns (10% to 90% of DVDD) and timed from a voltage level of (V
IL
+ V
IH
)/2.
(2) Not applicable in auto-sleep power-down mode.
Copyright © 2010–2011, Texas Instruments Incorporated Submit Documentation Feedback 11
Product Folder Link(s): ADS8363 ADS7263 ADS7223