參數(shù)資料
型號(hào): LTC2428IG
廠商: LINEAR TECHNOLOGY CORP
元件分類: ADC
英文描述: 4-/8-Channel 20-Bit uPower No Latency ADCs
中文描述: 8-CH 20-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28
封裝: 0.209 INCH, PLASTIC, SSOP-28
文件頁(yè)數(shù): 3/28頁(yè)
文件大?。?/td> 317K
代理商: LTC2428IG
3
LTC2424/LTC2428
SYMBOL
V
IN
V
REF
C
S(IN)
C
S(REF)
I
IN(LEAK)
I
REF(LEAK)
I
IN(MUX)
R
ON
PARAMETER
Input Voltage Range
Reference Voltage Range
Input Sampling Capacitance
Reference Sampling Capacitance
Input Leakage Current
Reference Leakage Current
On Channel Leakage Current
MUX On-Resistance
CONDITIONS
(Note 14)
MIN
TYP
MAX
UNITS
G
–0.125 V
REF
0.1
1.125 V
REF
V
CC
V
V
G
1
pF
pF
nA
nA
nA
1.5
1
1
CS = V
CC
V
REF
= 2.5V, CS = V
CC
V
S
= 2.5V (Note 15)
I
OUT
= 1mA, V
CC
= 2.7V
I
OUT
= 1mA, V
CC
= 5V
G
–100
–100
100
100
±
20
300
250
G
G
G
G
250
120
0.5
20
MUX
R
ON
vs Temperature
R
ON
vs V
S
(Note 15)
MUX Off Input Leakage
MUX Off Output Leakage
MUX Break-Before-Make Interval
Enable Turn-On Time
Enable Turn-Off Time
MUX Off Isolation
Charge Injection
Input Off Capacitance (MUX)
Output Off Capacitance (MUX)
%/
°
C
%
nA
nA
ns
ns
ns
dB
pC
pF
pF
I
S(OFF)
I
D(OFF)
t
OPEN
t
ON
t
OFF
QIRR
QINJ
C
S(OFF)
C
D(OFF)
Channel Off, V
S
= 2.5V
Channel Off, V
D
= 2.5V
G
±
20
±
20
G
290
490
190
70
±
1
10
10
V
S
= 1.5V, R
L
= 3.4k, C
L
= 15pF
V
S
= 1.5V, R
L
= 3.4k, C
L
= 15pF
V
IN
= 2V
P-P
, R
L
= 1k, f = 100kHz
R
S
= 0
, C
L
= 1000pF, V
S
= 1V
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. (Note 3)
A ALOG I PUT A D REFERE CE
PARAMETER
Total Unadjusted Error
CONDITIONS
V
REF
= 2.5V
V
REF
= 5V
V
IN
= 0V, V
REF
= 5V (Note 13)
V
REF
= 5V, 100 Samples/Second, f
O
= 2.048MHz
(Note 7)
(Note 8)
V
REF
= 2.5V, V
IN
= 0V
V
REF
= 2.5V, V
IN
= 0V, (Notes 7, 16)
V
REF
= 2.5V, V
IN
= 0V, (Notes 8, 16)
MIN
TYP
8
16
6
20
130
130
100
110
110
MAX
UNITS
ppm of V
REF
ppm of V
REF
μ
V
RMS
μ
V
RMS
Output Noise
Output Noise (Fast Mode)
Normal Mode Rejection 60Hz
±
2%
Normal Mode Rejection 50Hz
±
2%
Power Supply Rejection, DC
Power Supply Rejection, 60Hz
±
2%
Power Supply Rejection, 50Hz
±
2%
G
110
110
dB
dB
dB
dB
dB
G
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. (Notes 3, 4)
CO
N
VERTER CHARACTERISTICS
U
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