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WM0832CD Datenblatt(PDF) 5 Page - Wolfson Microelectronics plc

Teilenummer WM0832CD
Bauteilbeschribung  8-Bit ADCs with Serial Interface and Differential or Dual Inputs
PDF  14 Pages
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Hersteller  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM0832CD Datenblatt(HTML) 5 Page - Wolfson Microelectronics plc

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Wolfson Microelectronics
5
WM0831, WM0832
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital Inputs
High level output voltage
VOH
VCC = 3V, IOH = -360
µA
2.4
V
VCC = 3 V, IOH = -10
µA
2.8
V
Low level output voltage
VOL
VCC = 3V, IOH = 1.6 mA
0.4
V
High level input current
IIH
VIH = 3.6 V
0.005
1
µA
Low level input current
IIL
VIL = 0 V
-0.005
-1
µA
High level output (source)
IOH
VOH = 0 V, TA = 25oC6.5
15
mA
current
Low level output (sink) current
IOL
VOL = 0V, TA = 25oC8
16
mA
High impedance-state
IOZ
VO = 3.3V, TA = 25oC
0.01
3
µA
output current (DO)
VO = 0 V, TA = 25oC
-0.01
-3
µA
Input capacitance
CI
5pF
Output capacitance
Co
5pF
Converter and Multiplexer
Total unadjusted error
TUE
VREF = 3.3 V. (note 7)
±1
LSB
Differential Linearity
(note 8)
8
Bits
Supply voltage variation error
Vs(error)
VCC = 3 V to 3.6 V
±1/16
±1/4
LSB
Common mode error
Differential mode
±1/16
±1/4
LSB
Common mode input voltage
VICR
(note 9)
GND-0.05
V
range
VCC+0.05
Standby input leakage
II(stdby)
On-channel
VI =3.3V at ON ch.
1
µA
current (note 10)
Off-channel VI =0 V at OFF ch.
-1
µA
On-channel
VI =0 V at ON ch.
-1
µA
Off-channel
VI =3.3V at OFF ch.
1
µA
Conversion time
tconv
Excluding MUX addressing time
8
clock
periods
Reference Inputs
Input resistance to
Ri(REF)
Can only be tested for WM0831
1.3
2.4
5.9
k
Ω
reference ladder
Total device
Supply current WM0831
ICC
0.2
0.75
mA
Supply current WM0832
ICC
( note 11)
1.5
2.5
mA
Timing Parameters
Setup time, CS low or
tsu
350
ns
WM0832 data valid before
clock
Hold time, WM0832 data
th
90
ns
valid after clock
Propagation delay time,
MSB data first.
CL = 100 pF
200
500
ns
output data after clock
tpd
LSB data first.
CL = 100 pF
80
200
ns
Output disable time, DO
tdis
CL = 10 pF, RL = 10 k
Ω
80
125
ns
after CS
CL = 100 pF, RL = 2 k
Ω
250
ns
Electrical Characteristics (3.3V)
Vcc = 3.3V, fCLK = 250KHz, TA = TMIN to TMAX, tr = tf = 20 ns, unless otherwise stated.



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