WM0834, WM0838
Electrical Characteristics (3.3V)
VCC = 3.3V, fCLK = 250 KHz, TA = TMIN to TMAX, tr = tf = 20ns, unless otherwise stated.
PARAMETER
Digital Inputs
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
High level output voltage
VOH
VCC = 3.0 V, IOH = -360 mA
VCC = 3.0V, IOH = -10 mA
VCC =3.0V, IOH = 1.6 mA
VIH = 3.6V
VIL = 0 V
VOH = 0 V, TA = 25oC
2.4
2.8
V
V
V
µA
µA
mA
Low level output voltage
High level input current
Low level input current
High level output (source)
current
Low level output (sink) current IOL
High impedance-state
output current (DO)
VOL
IIH
IIL
0.4
1
-1
0.005
-0.005
15
IOH
6.5
8
VOL = VCC, TA = 25oC
VO = 3.3 V, TA = 25oC
VO = 0 V, TA = 25oC
16
0.01
-0.01
5
mA
µA
µA
pF
pF
IOZ
3
-3
Input capacitance
Ci
Co
Output capacitance
Converter and Multiplexer
Total unadjusted error
Differential Linearity
5
TUE
VREF = 3.3 V. (note 7)
(note 8)
±1
LSB
Bits
LSB
LSB
V
8
Supply voltage variation error Vs(error) VCC = 3.0 V to 3.6 V
±1/16
±1/16
±1/4
±1/4
Common mode error
Common mode input voltage
range
Differential mode
(note 9)
VICR
GND-0.05
VCC+0.05
Standby input leakage
current (note 10)
II(stdby)
On-channel VI =3.3 V at ON ch.
Off-channel VI = 0 V at OFF ch.
On-channel VI = 0 V at ON ch.
Off-channel VI =3.3V at OFF ch
Excluding MUX addressing time
1
-1
-1
1
µA
µA
µA
µA
clock
periods
Conversion time
tconv
8
Reference Inputs
Input resistance to
reference ladder
Total device
Supply current
Timing Parameters
Setup time, CS low or
data valid before clock
Hold time, data valid after
clock
Ri(REF)
1.3
2.4
0.2
5.9
kΩ
ICC
tsu
th
0.75
mA
ns
350
90
ns
Propagation delay time,
output data after clock
Output disable time, DO
after CS
MSB data first.
LSB data first.
CL = 10 pF, RL = 10 kΩ
CL = 100 pF, RL = 2 kΩ
CL = 100 pF
CL = 100 pF
500
200
80
ns
ns
ns
ns
tpd
tdis
250
Wolfson Microelectronics
5
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
