Specifications

DATA SHEET QF4A512
Rev D4, Dec 07 5 www.quickfiltertech.com
1.4 Electrical Characteristics
Symbol Parameter (Condition) Min Typ Max Units Note
Resolution
N Resolution, Nominal 16 Bits
NMC No Missing Codes Guaranteed 16 Bits
DC Accuracy
PSRR Power-supply rejection ratio 54 dB
G
ERR
Gain Error (Uncalibrated) 1 %FSR 1
V
OS
DC Offset Error (Uncalibrated) - Chopper Off
- Chopper On
±10
± 0.01
mV 1
V
REF
Internal Voltage Reference 1.2 V
TCV
REF
Internal Voltage Reference Drift over temp 100 ppm/°C 2
INL Integral Non-linearity (PGA = x1) 0.02 %FS
DNL Differential Non-linearity (PGA = x1) 1 LSB
AC Accuracy
SNR
Signal To Noise Ratio, f
S
= 2kHz
f
S
= 20kHz
f
S
= 200kHz
f
S
= 2MHz
82
81
77
69
dBFS 3
SINAD
Signal To Noise and Distortion, f
S
= 2kHz
f
S
= 20kHz
f
S
= 200kHz
f
S
= 2MHz
81
80
76
69
dBFS 3
SFDR
Spurious Free Dynamic Range, f
S
= 2kHz
f
S
= 20kHz
f
S
= 200kHz
f
S
= 2MHz
89
88
88
87
dBc 3
THD
Total Harmonic Distortion, f
S
= 2kHz
f
S
= 20kHz
f
S
= 200kHz
f
S
= 2MHz
-89
-88
-85
-83
dBc 3
ENOB
Effective number of bits f
S
= 2kHz
f
S
= 20kHz
f
S
= 200kHz
f
S
= 2MHz
13.2
13.0
12.4
11.2
Bits 3
Analog Inputs
V
FSR
Input Differential Voltage Range 1.6 2.0
V
P-P
V
CM
Input Common Mode Voltage Range 0.2 1.2 2.5 V
CMRR Common Mode Rejection Ratio 55 dB
C
IN
Input Capacitance (Single Ended) 5 pF
R
IN
Input Resistance (Single Ended) 9.2 10.0 10.8 kΩ 4