Datasheet
TLV571
2.7 V TO 5.5 V, 1-CHANNEL, 8-BIT,
PARALLEL ANALOG-TO-DIGITAL CONVERTER
SLAS239A – SEPTEMBER 1999 – REVISED FEBRUARY 2000
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, supply
voltages, and reference voltages (unless otherwise noted)
digital specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Logic inputs
I
IH
High-level input current DV
DD
= 5 V, DV
DD
= 3 V, Input = DV
DD
–1 1 µA
I
IL
Low-level input current DV
DD
= 5 V, DV
DD
= 3 V, Input = 0 V –1 1 µA
C
i
Input capacitance 10 15 pF
Logic outputs
V
OH
High-level output voltage I
OH
= 50 µA to 0.5 mA DV
DD
–0.4 V
V
OL
Low-level output voltage I
OL
= 50 µA to 0.5 mA 0.4 V
I
OZ
High-impedance-state output current DV
DD
= 5 V, DV
DD
= 3 V, Input = DV
DD
1 µA
I
OL
Low-impedance-state output current DV
DD
= 5 V, DV
DD
= 3 V, Input = 0 V –1 µA
C
o
Output capacitance 5 pF
Internal clock
3 V, AV
DD
= DV
DD
9 10 11
MHz
Internal
clock
5 V, AV
DD
= DV
DD
18 20 22
MHz
dc specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 8 Bits
Accuracy
Integral nonlinearity, INL Best fit ±0.3 ±0.5 LSB
Differential nonlinearity, DNL ±0.3 ±0.5 LSB
Missing codes 0
E
O
Offset error ±0.15% ±0.3% FSR
E
G
Gain error ±0.2% ±0.4% FSR
Analog input
C
i
In
p
ut ca
p
acitance
AIN, AV
DD
= 3 V, AV
DD
= 5 V 15 pF
C
i
Inp
u
t
capacitance
MUX input, AV
DD
= 3 V, AV
DD
= 5 V 25 pF
I
lkg
Input leakage current V
AIN
= 0 to AV
DD
±1 µA
Voltage reference input
r
i
Input resistance 2 kΩ
C
i
Input capacitance 300 pF
Power supply
O
p
erating su
pp
ly current I
DD
+I
REF
AV
DD
= DV
DD
= 3 V, f
CLK
= 10 MHz 4 5.5 mA
Operating
s
u
ppl
y
c
u
rrent
,
I
DD
+
I
REF
AV
DD
= DV
DD
= 5 V, f
CLK
= 20 MHz
7 8.5 mA
PD
Power dissi
p
ation
AV
DD
+DV
DD
= 3 V 12 17 mW
PD
Po
w
er
dissipation
AV
DD
+DV
DD
= 5 V 35 43 mW
Software
I
DD
+I
REF
AV
DD
= 3 V 1 8 µA
I
PD
Su
pp
ly current in
p
ower down mode
Soft
w
are
I
DD
+
I
REF
AV
DD
= 5 V 2 10 µA
I
PD
S
u
ppl
y
c
u
rrent
in
po
w
er
-
do
w
n
mode
Auto
I
DD
+I
REF
AV
DD
= 3 V 0.5 1 mA
A
u
to
I
DD
+
I
REF
AV
DD
= 5 V 0.5 1 mA