LTC2309
CONVERTER AND MULTIPLEXER CHARACTERISTICS The
l
denotes the specifications
which apply over the full operating temperature range, otherwise specifications are at T = 25°C. (Notes 4, 5)
A
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Bits
l
l
l
l
Resolution (No Missing Codes)
Integral Linearity Error
Differential Linearity Error
Bipolar Zero Error
12
(Note 6)
0.45
0.35
1
1
1
8
LSB
LSB
(Note 7)
LSB
Bipolar Zero Error Drift
Bipolar Zero Error Match
Unipolar Zero Error
0.002
0.1
LSB/°C
LSB
3
6
l
(Note 7)
0.4
LSB
Unipolar Zero Error Drift
Unipolar Zero Error Match
Bipolar Full-Scale Error
0.002
0.2
LSB/°C
LSB
1
l
l
External Reference (Note 8)
REFCOMP = 4.096V
0.5
0.4
10
9
LSB
LSB
Bipolar Full-Scale Error Drift
Bipolar Full-Scale Error Match
Unipolar Full-Scale Error
External Reference
0.05
0.4
LSB/°C
LSB
3
l
l
External Reference (Note 8)
REFCOMP = 4.096V
0.4
0.3
10
6
LSB
LSB
Unipolar Full-Scale Error Drift
Unipolar Full-Scale Error Match
External Reference
0.05
0.3
LSB/°C
LSB
2
ANALOG INPUT The
l
denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at T = 25°C. (Note 4)
A
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
AV
UNITS
+
l
V
V
Absolute Input Range (CH0 to CH7)
(Note 9)
–0.05
V
IN
IN
DD
–
+
l
l
Absolute Input Range (CH0 to CH7, COM) Unipolar (Note 9)
Bipolar (Note 9)
–0.05
–0.05
AV /2
V
V
DD
AV
DD
–
+
+
–
–
l
l
V
– V
Input Differential Voltage Range
V
IN
V
IN
= V – V (Unipolar)
0 to REFCOMP
REFCOMP/2
V
V
IN
IN
IN
IN
IN
= V – V (Bipolar)
IN
l
I
Analog Input Leakage Current
Analog Input Capacitance
1
μA
IN
C
Sample Mode
Hold Mode
55
5
pF
pF
IN
CMRR
Input Common Mode Rejection Ratio
70
dB
DYNAMIC ACCURACY The
l
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T = 25°C. A = –1dBFS. (Notes 4, 10)
A
IN
SYMBOL
SINAD
SNR
PARAMETER
CONDITIONS
MIN
71
TYP
73.3
73.4
–88
90
MAX
UNITS
dB
l
l
l
l
Signal-to-(Noise + Distortion) Ratio
Signal-to-Noise Ratio
f
IN
f
IN
f
IN
f
IN
f
IN
= 1kHz
= 1kHz
71
dB
THD
Total Harmonic Distortion
Spurious Free Dynamic Range
Channel-to-Channel Isolation
Full Linear Bandwidth
= 1kHz, First 5 Harmonics
–77
dB
SFDR
= 1kHz
= 1kHz
79
dB
–109
700
25
dB
(Note 11)
kHz
MHz
ns
–3dB Input Linear Bandwidth
Aperature Delay
13
Transient Response
Full-Scale Step
240
ns
2309f
3
Linear [ Linear ]
