WM8233 Datasheet, PDF (9/15 Pages) Wolfson Microelectronics plc – 70MSPS 6-Channel AFE with Sensor Timing Generation and LVDS/CMOS Data Output

WM8233
Product Brief
GENERAL CHARACTERISTICS
Test Conditions
AVDD = LDOVDD = DBVDD = 3.3V , AGND = LDOGND = DBGND= 0V, TA = 25C, MCLK= 35MHz unless otherwise stated.
PARAMETER
SYMBOL
References
Upper reference voltage
V_REF1C
Lower reference voltage
VREF3C
Input return bias voltage
Diff. Reference voltage (VREF1C-
VREF3C)
Output resistance VREF1C,
VREF3C, VREF2C
VRLC/Reset-Level Clamp (RLC)
RLC switching impedance
RLC short-circuit current
RLC output resistance
RLC Hi-Z leakage current
RLCDAC resolution
RLCDAC step size
RLCDAC output voltage at
code 0(hex)
VREF2C
VREF1C3C
VRLCSTEP
VRLCSTEP
V_RLCBOT
VRLCBOT
RLCDAC output voltage at
code 1F(hex)
V_RLCTOP
VRLCTOP
VRLC DNL
VRLC INL
Offset DAC, Monotonicity Guaranteed
Resolution
Differential non-linearity
DNL
Integral non-linearity
INL
Step size
Output voltage
DIGITAL SPECIFICATIONS
Digital Inputs
High level input voltage
V_IH
Low level input voltage
VIL
High level input current
IIH
Low level input current
IIL
Input capacitance
C_I
TEST
CONDITIONS
ADCFS=0
ADCFS=1
ADCFS=0
ADCFS=1
ADCFS=0
ADCFS=1
VRLC = 0 to AVDD
VRLC_TOP_SEL=0
VRLC_TOP_SEL=1
VRLC_TOP_SEL=0,
VRLC_VSEL[4:0]=00000
VRLC_TOP_SEL=1,
VRLC_VSEL[4:0]=00000
VRLC_TOP_SEL=0,
VRLC_VSEL[4:0]=11111
VRLC_TOP_SEL=1,
VRLC_VSEL[4:0]=11111
Code 00(hex)
Code FF(hex)
MIN
0.7 
AVDD
TYP
2.05
2.25
1.25
1.05
1.2
0.8
1.2
1
50
2
2
5
0.09
0.048
0.2
0.11
3.0
1.6
+/- 0.5
+/- 0.5
8
0.1
0.75
2.04
-250
+250
5
MAX
UNIT
V
V
V
V
V
V
V


mA

1
A
bits
V/step
V/step
V
V
V
V
LSB
LSB
bits
LSB
LSB
mV/step
mV
mV
V
0.2 
V
AVDD
1
A
1
A
pF
w
Product Brief, Rev 3.0, February 2012
9