WM2152
Product Preview
ELECTRICAL CHARACTERISTICS
Test Conditions:
AVDD = DVDD = 3.3V, fCLK = 30MHz, EXTREF = AGND, Mode=1, TA = TMIN to TMAX, unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DC Characteristics
Resolution
12
bits
LSB
LSB
Integral Nonlinearity
Differential Nonlinearity
Missing Codes
INL
All modes
All modes
All modes
All modes
All modes
-2.5
±1.2
±0.4
+2
DNL
±1
No missing codes guaranteed
Offset Error
0.5
0.5
1.2
3.5
%FSR
%FSR
Gain Error
Dynamic Performance (Note 1)
Effective number of bits
ENOB
THD
fIN =3.58MHz
fIN =10MHz
10.9
10.9
10.8
-76
bits
bits
bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
deg
%
10.6
f
IN =15MHz
Total harmonic distortion
fIN =3.58MHz
fIN =10MHz
-74
-65
f
IN =15MHz
-72.5
68
SNR
fIN =3.58MHz
fIN =10MHz
fIN =15MHz
fIN =3.58MHz
fIN =10MHz
66
65.6
67
68
67.7
67.4
67.4
66.6
78.1
76.4
74.6
0.12
0.01
Signal to noise and distortion
ratio
SINAD
SFDR
f
IN =15MHz
Spurious free dynamic range
fIN =3.58MHz
fIN =10MHz
f
IN =15MHz
Differential phase
Differential gain
DP
DG
Analogue Input Signal to (VINP – VINM)
Input Span
Mode=1, VREF = 1V
Mode=2, VREF = 1V
Mode=3, VREF = 1V
All modes
-0.5
-1
0
0.5
1
V
V
1
V
Input (VINP or VINM) range
0
AVDD
V
Input capacitance
CIN
All modes
6
pF
MHz
dB
Analogue input bandwidth
Power supply rejection ratio
Conversion Characteristics
Conversion frequency
180
54
PSRR
fCLK
5
30
MHz
cycles of
CLK
Pipeline delay
5
Aperture delay
tA
2.0
2.0
ns
Aperture jitter
ps rms
Internal Voltage References (Note 3)
Upper reference voltage
Lower reference voltage
VRT
VRB
2.15
1.15
1
V
V
V
Differential reference voltage
(VRT-VRB)
VREF
0.95
-5
1.05
+5
Differential reference voltage
(VRT-VRB) accuracy
%
Power up time of references
from standby
tPU
100
µs
WOLFSON MICROELECTRONICS LTD
PP Rev 1.1 March 2001
4
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
