WM8152
Production Data
ELECTRICAL CHARACTERISTICS
Test Conditions
AVDD = DVDD1 = 5.0V, DVDD2 = 3.3V, AGND = DGND = 0V, TA = 25°C, MCLK = 24MHz unless otherwise stated.
PARAMETER
SYMBOL
TEST
MIN
TYP
MAX
UNIT
CONDITIONS
Overall System Specification (including 16-bit ADC, PGA, Offset and CDS functions)
Full-scale input voltage range
(see Note 1)
Max Gain
Min Gain
0.30
3.22
Vp-p
Vp-p
V
Input signal limits (see Note 2)
Full-scale transition error
VIN
0
VDD
+50
Gain = 0dB;
PGA[7:0] = 07(hex)
-50
10
10
mV
Zero-scale transition error
Gain = 0dB;
-50
+50
mV
PGA[7:0] = 07(hex)
Differential non-linearity
Integral non-linearity
Total output noise
DNL
INL
1.25
25
LSB
LSB
Min Gain
Max Gain
4.5
14
LSB rms
LSB rms
References
Upper reference voltage
VRT
VRB
VRX
VRTB
2.70
1.45
1.65
1.25
1
V
V
V
V
Ω
Lower reference voltage
Input return bias voltage
1.55
1.15
1.75
1.35
Diff. reference voltage (VRT-VRB)
Output resistance VRT, VRB, VRX
VRLC/Reset-Level Clamp (RLC)
RLC switching impedance
VRLC short-circuit current
VRLC output resistance
20
50
2
100
4.5
Ω
mA
Ω
1.86
2
VRLC Hi-Z leakage current
RLCDAC resolution
VRLC = 0 to AVDD
AVDD = 5.0V
1
µA
4
bits
V/step
V/step
V
RLCDAC step size, RLCDAC = 0
RLCDAC step size, RLCDAC = 1
VRLCSTEP
VRLCSTEP
VRLCBOT
0.23
0.14
0.34
0.25
0.16
0.39
0.27
0.20
0.44
RLCDAC output voltage at
AVDD = 5.0V
code 0(hex), RLCDACRNG = 0
RLCDAC output voltage at
code 0(hex), RLCDACRNG = 1
VRLCBOT
VRLCTOP
VRLCTOP
0.20
4.0
0.26
4.16
2.66
0.31
4.3
V
V
V
RLCDAC output voltage at
code F(hex) RLCDACRNG, = 0
AVDD = 5.0V
RLCDAC output voltage at
2.56
2.76
code F(hex), RLCDACRNG = 1
Offset DAC, Monotonicity Guaranteed
Resolution
8
bits
LSB
Differential non-linearity
Integral non-linearity
Step size
DNL
INL
0.1
0.5
1
0.25
2.04
-260
+260
LSB
mV/step
mV
Output voltage
Code 00(hex)
Code FF(hex)
-247
-273
+247
+273
mV
Notes:
1.
Full-scale input voltage denotes the peak input signal amplitude that can be gained to match the ADC input
range.
2.
Input signal limits are the limits within which the full-scale input voltage signal must lie.
PD Rev 4.0 January 2004
6
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
