LTC1851 Linear Technology, LTC1851 Datasheet - Page 5

• Manufacturer Part Number: LTC1851
• Description: 1.25Msps Sampling ADCs
• Manufacturer: Linear Technology

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POWER REQUIRE E TS
SYMBOL
V
OV
I
P
TI I G CHARACTERISTICS
SYMBOL
f
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
range, otherwise specifications are at T
range, otherwise specifications are at T
DD
SAMPLE(MAX)
CONV
ACQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DD
DISS
DD
W
U
PARAMETER
Positive Supply Voltage
Output Positive Supply Voltage
Positive Supply Current
Power Dissipation
Power Down Positive Supply Current
Nap Mode
Sleep Mode
Power Down Power Dissipation
Nap Mode
Sleep Mode
PARAMETER
Maximum Sampling Frequency
Acquisition + Conversion
Conversion Time
Acquisition Time
CS to RD Setup Time
CS to CONVST Setup Time
CS to SHDN Setup Time
SHDN to CONVST Wake-Up Time
CONVST Low Time
CONVST to BUSY Delay
Data Ready Before BUSY
Delay Between Conversions
Wait Time RD After BUSY
Data Access Time After RD
BUS Relinquish Time
RD Low Time
CONVST High Time
Latch Setup Time
Latch Hold Time
WR Low Time
W U
A
A
= 25 C. (Note 5)
= 25 C. (Note 5)
The
The
denotes the specifications which apply over the full operating temperature
SHDN = 0V, CS = 0V
SHDN = 0V, CS = 0V
CONDITIONS
(Note 10)
(Note 10)
V
f
SHDN = 0V, CS = 5V
SHDN = 0V, CS = 5V
SAMPLE
DD
CONDITIONS
(Notes 9, 10)
(Notes 9, 10)
(Notes 9, 10)
Nap Mode (Note 10)
Sleep Mode, 10 F REFCOMP
Bypass Capacitor (Note 10)
(Notes 10, 11)
C
(Note 10)
C
C
0 C to 70 C
– 40 C to 85 C
(Note 10)
(Notes 9, 10)
(Notes 9, 10)
(Note 10)
denotes the specifications which apply over the full operating temperature
L
L
L
= V
= 25pF
= 25pF
= 100pF
DD
= 1.25MHz
= OV
DD
= 5V,
LTC1850/LTC1851
4.75
MIN
1.25
MIN
2.7
20
– 5
t
10
50
15
50
50
10
10
50
0
10
0.25
TYP
TYP
200
200
40
50
10
10
35
20
25
10
8
1
5
MAX
5.25
5.25
MAX
800
650
150
10
50
60
35
45
45
60
30
35
40
UNITS
UNITS
18501f
5
MHz
mW
mW
mW
mA
mA
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
A