AS1543/44
Data Sheet - Electrical Characteristics
6 Electrical Characteristics
VDD = VDRIVE = 2.7 to 5.25V, REFIN = 2.5V, fSCLK = 20MHz (50% Duty cycle), VCMIN = VREFIN/2 (when SE/FDN = 0),
TAMB = -40 to +85°C. Typical values at TAMB = +25°C and VDD = VDRIVE = 5.25V (unless otherwise specified).
Table 3. Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
DC Accuracy
Resolution
12
±1
Bits
INL
Integral Nonlinearity
LSB
Straight Binary Output Coding;
DNL
Differential Nonlinearity
-0.95
+1.2
±4
LSB
Guaranteed No Missed Codes to 12 Bits
Offset Error
Offset Error Match
Gain Error
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
±0.5
±0.6
±0.5
Bit RANGE = 1
±4
±4
±4
±4
±4
±4
±4
Gain Error Match
Offset Error
Bit SE/FDN = 1,
bit CODING = 1
Offset Error Match
Gain Error
Bit RANGE = 0
Bit RANGE = 1
Gain Error Match
Zero Code Error
Zero Code Error Match
Gain Error
±0.6
±0.6
±0.5
Gain Error Match
Zero Code Error
Zero Code Error Match
Gain Error
±0.5
±0.6
±0.5
Bit SE/FDN = 0,
bit CODING = 0
Bit RANGE = 0
Gain Error Match
±0.5
Dynamic Specifications 50kHz sinewave input
Signal to Noise +
SINAD
71.2
dB
Distortion Ratio
SNR
THD
Signal-to-Noise Ratio
71.8
-82
dB
dB
Bit RANGE = 1,
bit SE/FDN = 1
Total Harmonic Distortion
Spurious-Free Dynamic
Range
SFDR
84
71
dB
dB
Signal to Noise +
Distortion
SINAD
68
Bit RANGE = 0,
bit SE/FDN = 0,
bit CODING = 0
SNR
THD
Signal-to-Noise Ratio
68.5
71.5
-83
dB
dB
Total Harmonic Distortion
-71
Spurious-Free Dynamic
Range
SFDR
IMD
73
85
dB
dB
Second Order Terms
Third Order Terms
-83
-91
fA = 40.1kHz,
fB = 41.5kHz
Intermodulation Distortion
Channel-to-Channel
Isolation
fIN = 400kHz
-79
dB
@ 3dB
35
Full Power Bandwidth
MHz
@ 0.1dB
3.6
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