AD7366/AD7367
Rev. D | Page 7 of 28
TIMING SPECIFICATIONS
AVCC = DVCC = 4.75 V to 5.25 V, VDD = 11.5 V to 16.5 V, VSS = 16.5 V to 11.5 V, VDRIVE = 2.7 V to 5.25 V, TA = 40°C to +85°C,
Table 4.
Parameter
Limit at T
MIN, TMAX
Unit
Test Conditions/Comments
2.7 V ≤ V
DRIVE < 4.75 V
4.75 V ≤ V
DRIVE ≤ 5.25 V
t
CONVERT
Conversion time, internal clock; CNVST falling edge to
BUSY falling edge
680
ns max
AD7367
610
ns max
AD7366
f
SCLK
10
kHz min
Frequency of serial read clock
35
48
MHz max
t
QUIET
30
ns min
Minimum quiet time required between the end of serial
read and the start of the next conversion
t
1
10
ns min
Minimum CNVST low pulse
t
2
40
ns min
CNVST falling edge to BUSY rising edge
t
3
0
ns min
BUSY falling edge to MSB, valid when CS is low for t4 prior
to BUSY going low
t
4
10
ns max
Delay from CS falling edge until Pin 1 (DOUTA) and Pin 23
(D
OUTB) are three-state disabled
20
14
ns max
Data access time after SCLK falling edge
t
6
7
ns min
SCLK to data valid hold time
t
7
0.3 × t
SCLK
0.3 × t
SCLK
ns min
SCLK low pulse width
t
8
0.3 × t
SCLK
0.3 × t
SCLK
ns min
SCLK high pulse width
t
9
10
CS rising edge to DOUTA, DOUTB, high impedance
t
POWER-UP
70
s max
Power-up time from shutdown mode; time required
between CNVST rising edge and CNVST falling edge
1 Sample tested during initial release to ensure compliance. All input signals are specified with t
R = tF = 5 ns (10% to 90% of VDRIVE) and timed from a voltage level of 1.6 V.
All timing specifications are with a 25 pF load capacitance. With a load capacitance greater than 25 pF, a digital buffer or latch must be used. See the Terminology
2 The time required for the output to cross is 0.4 V or 2.4 V.