ꢙ ꢚꢉ ꢛꢜ ꢝꢞ
ꢙ ꢚꢉ ꢛꢜ ꢝꢟ
www.ti.com
SBAS311 − MARCH 2004
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range at −40°C to +85°C, V
otherwise noted.
= 5V or V
DD
= 3V, V
REF
= internal +2.5V, CLKIN = 1MHz, unless
DD
ADS1206I, ADS1207I
(1)
TYP
MIN
MAX
UNITS
PARAMETER
DC Accuracy
TEST CONDITIONS
BUF = 1
BUF = 0
0.012 % FSR
0.018 % FSR
TBD % FSR
(2)
Integral linearity error
INL
(3)
DNL
Differential nonlinearity
Offset error
BUF = 0, VIN = 0V
BUF = 1, VIN = 0.1V
7
7
5
35
35
20
mV
mV
V
OS
TCV
Offset error drift
(4)
Gain error
µV/°C
OS
ERR
TCG
G
Referenced to V
REF
0.1
20
0.7 % FSR
ppm/°C
µVrms
dB
Gain error drift
Noise
ERR
TBD
55
4.5V < V
3.0V < V
< 5.5V
DD
DD
PSRR
Power-supply rejection ratio
< 3.6V
65
dB
Analog Input
FSR
BUF = 0
BUF = 1
BUF = 0
BUF = 1
BUF = 0
BUF = 1
0
V
V
V
REF
− 0.2
Full-scale range
Input capacitance
Input current
0.1
V
DD
3
3
pF
pF
8
10
µA
nA
kΩ
pF
5
100
Differential input resistance
Differential input capacitance
100
1
FS sinewave, −3dB, BUF = 0
FS sinewave, −3dB, BUF = 1
TBD
TBD
MHz
MHz
BW
Bandwidth
Output Signal
ADS1206I
ADS1207I
0.1
0.9
CLKIN
CLKIN
FOUT
Output frequency span
0.05
0.45
Voltage Reference Output
V
OUT
Reference voltage output
Initial accuracy
2.3
2.5
2.7
8
V
%
dV
/dT Output voltage temperature drift
50
100
TBD
−70
−60
1
ppm/°C
OUT
f = 0.1Hz to 10Hz, C = 10µF
µV
PP
µVrms
dB
L
Output voltage noise
f =10Hz to 10kHz, C = 10µF
L
V
= 4.5V to 5.5V
= 3.0V to 3.6V
DD
PSRR
Power-supply rejection ratio
V
DD
dB
Reference output resistance
Turn-on settling time
kΩ
to 0.1% at C = 0
30
µs
L
Voltage Reference Input
V
REF
Reference voltage input
Reference input capacitance
Reference input current
TBD
2.5
5
V
DD
V
pF
µA
200
(1)
(2)
All typical values are at T = +25°C.
Integral nonlinearity is defined as the maximum deviation of the line through the end points of the transfer curve for V = 0V to V
A
or 0.1V
IN REF
to V
DD
− 0.2V, expressed either as the number of LSBs or as a percent of measured input range.
Ensured by design.
(3)
(4)
(5)
(6)
Maximum values, including temperature drift, are ensured over the full specified temperature range.
Applicable for 5.0V nominal supply: V
Applicable for 3.0V nominal supply: V
(min) = 4.5V and V
(min) = 3.0V and V
(max) = 5.5V.
(max) = 3.6V.
DD
DD
DD
DD
3
BB [ BURR-BROWN CORPORATION ]
