Datasheet

TLV571
2.7 V TO 5.5 V, 1-CHANNEL, 8-BIT,
PARALLEL ANALOG-TO-DIGITAL CONVERTER
SLAS239A – SEPTEMBER 1999 – REVISED FEBRUARY 2000
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, GND to V
CC
–0.3 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Analog input voltage range –0.3 V to AV
DD
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference input voltage range AV
DD
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital input voltage range –0.3 V to DV
DD
+ 0.3 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T
J
–40°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
, –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
power supplies
MIN MAX UNIT
Analog supply voltage, AV
DD
2.7 5.5 V
Digital supply voltage, DV
DD
2.7 5.5 V
NOTE 1: Abs (AV
DD
– DV
DD
) < 0.5 V
analog inputs
MIN MAX UNIT
Analog input voltage, AIN AGND VREFP V
digital inputs
MIN NOM MAX UNIT
High-level input voltage, V
IH
DV
DD
= 2.7 V to 5.5 V 2.1 2.4 V
Low level input voltage, V
IL
DV
DD
= 2.7 V to 5.5 V 0.8 V
In
p
ut CLK frequency
DV
DD
= 4.5 V to 5.5 V 20 MHz
Inp
u
t
CLK
freq
u
enc
y
DV
DD
= 2.7 V to 3.3 V 10 MHz
Pulse duration CLK high t
(CLKH)
DV
DD
= 4.5 V to 5.5 V, f
CLK
= 20 MHz 23 ns
P
u
lse
d
u
ration
,
CLK
high
,
t
w(CLKH)
DV
DD
= 2.7 V to 3.3 V, f
CLK
= 10 MHz 46 ns
Pulse duration CLK low t
w(CLKL)
DV
DD
= 4.5 V to 5.5 V, f
CLK
= 20 MHz 23 ns
Pulse
duration
,
CLK
low
,
t
w
(CLKL)
DV
DD
= 2.7 V to 3.3 V, f
CLK
= 10 MHz 46 ns
Rise time, I/O and control, CLK, CS 50 pF output load 4
ns
Fall time, I/O and control, CLK, CS 50 pF output load 4
ns
reference specifications
MIN NOM MAX UNIT
VREFP
AV
DD
= 3 V 2 AV
DD
V
VREFP
AV
DD
= 5 V 2.5 AV
DD
V
External reference voltage
VREFM
AV
DD
= 3 V AGND 1 V
VREFM
AV
DD
= 5 V AGND 2 V
VREFP – VREFM 2 AV
DD
–AGND V