Datasheet

TLV0834C, TLV0834I, TLV0838C, TLV0838I
3-VOLT 8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS147B – SEPTEMBER 1996 – REVISED OCTOBER 2000
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions
MIN NOM MAX UNIT
Supply voltage, V
CC
(see clock frequency operating conditions) 2.7 3.3 3.6 V
High-level input voltage, V
IH
2 V
Low-level input voltage, V
IL
0.8 V
Clock frequency, f
(CLK)
V
CC
= 2.7 V 10 250 kHz
Clock frequency, f
(CLK)
V
CC
= 3.3 V 10 600 kHz
Clock duty cycle (see Note 2) 40% 60%
Pulse duration, CS high, t
w
220 ns
Setup time, CS low, SE low, or data valid before CLK↑, t
su
350 ns
Hold time, data valid after CLK↑, t
h
90 ns
O
p
erating free air tem
p
erature T
A
C suffix 0 70
°
C
Operating
free
-
air
temperat
u
re
,
T
A
I suffix –40 85
°C
NOTE 2: The clock-duty-cycle range ensures proper operation at all clock frequencies. When a clock frequency is used outside the
recommended duty-cycle range, the minimum pulse duration (high or low) is 1 µs.
electrical characteristics over recommended range of operating free-air temperature, V
CC
= 3.3 V,
f
(CLK)
= 250 kHz (unless otherwise noted)
digital section
PARAMETER
TEST CONDITIONS
†
C SUFFIX I SUFFIX
UNIT
PARAMETER
TEST
CONDITIONS
†
MIN TYP
‡
MAX MIN TYP
‡
MAX
UNIT
V
OH
High level out
p
ut voltage
V
CC
= 3 V, I
OH
= –360 µA 2.8 2.4
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
V
CC
= 3 V, I
OH
= –10 µA 2.9 2.8
V
V
OL
Low-level output voltage V
CC
= 3 V, I
OL
= 1.6 mA 0.34 0.4 V
I
IH
High-level input current V
IH
= 3.6 V 0.005 1 0.005 1 µA
I
IL
Low-level input current V
IL
= 0 –0.005 –1 –0.005 –1 µA
I
OH
High-level output (source) current At V
OH
, DO = 0 V, T
A
= 25°C –6.5 –15 –6.5 –15 mA
I
OL
Low-level output (sink) current A t V
OL
, DO = V
CC
, T
A
= 25°C 8 16 8 16 mA
I
OZ
High-impedance-state output
V
O
= 3.3 V, T
A
= 25°C 0.01 3 0.01 3
µA
I
OZ
g
current (DO or SARS)
V
O
= 0,
T
A
= 25°C –0.01 –3 –0.01 –3
µ
A
C
i
Input capacitance 5 pF
C
o
Output capacitance 5 pF
†
All parameters are measured under open-loop conditions with zero common-mode input voltage (unless otherwise specified).
‡
All typical values are at V
CC
= 3.3 V, T
A
= 25°C.