LTC1277CSW Linear Technology, LTC1277CSW Datasheet - Page 4

• Manufacturer Part Number: LTC1277CSW
• Description: IC A/D CONV 12BIT W/SHTDN 24SOIC
• Manufacturer: Linear Technology

Specifications of LTC1277CSW

• Number Of Bits: 12
• Sampling Rate (per Second): 100k
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 20mW
• Voltage Supply Source: Dual ±
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC1277CS

DIGITAL I PUTS A D DIGITAL OUTPUTS
POWER REQUIRE E TS
LTC1274/LTC1277
SYMBOL PARAMETER
I
C
I
I
SYMBOL PARAMETER
V
V
V
I
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
4
OZ
SOURCE
SINK
DD
SS
SAMPLE(MAX)
CONV
ACQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OZ
DD
LOGIC
SS
DISS
W U
High-Z Output Leakage D11 to D0/8
High-Z Output Capacitance D11 to D0/8
Output Source Current
Output Sink Current
Positive Supply Voltage (Notes 11, 12)
Logic Supply (Notes 11,12)
Negative Supply Voltage (Note 11)
Positive Supply Current
Negative Supply Current
Power Dissipation
PARAMETER
Maximum Sampling Frequency
Conversion Time
Acquisition Time
CS↓ to RD↓ Setup Time
CS↓ to CONVST↓ Setup Time
NAP↑ 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
Aperture Delay of Sample-and-Hold
SLEEP↑ to REFRDY↑ Wake-Up Time 10µF Bypass at V
HBEN↑ to High Byte Data Valid
U
W U
U
CONDITIONS
V
CS High (Note 10)
V
V
CONDITIONS
Unipolar and Bipolar Mode
Unipolar and Bipolar Mode (LTC1277)
Bipolar Mode Only
f
NAP = 0V (LTC1277 Only)
SLEEP = 0V
f
SLEEP = 0V
f
NAP = 0V (LTC1277 Only)
SLEEP = 0V (Unipolar/Bipolar)
CONDITIONS
(Note 11)
(Note 10)
(Note 10)
(LTC1277 Only) (Note 11)
(Note 13)
C
C
(Note 11)
(Note 10)
C
C
C
(Note 10)
(Notes 10, 13)
4.7µF Bypass at V
C
SAMPLE
SAMPLE
SAMPLE
OUT
OUT
OUT
L
L
L
L
L
L
(Note 5)
= 100pF
= 100pF
= 20pF (Note 10)
= 100pF
= 100pF
= 100pF (LTC1277 Only)
= 0V to V
= 0V
= V
(Note 5) See Figures 13 to 17.
= 100ksps
= 100ksps, Bipolar Mode Only
= 100ksps
DD
DD
, CS High
REF
REF
Pin
Pin
(Note 5)
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
– 2.45
MIN
4.75
MIN
MIN
– 20
100
30
40
20
20
20
40
t
0
9
2.7 to 5.25
TYP
– 10
TYP
0.35
0.35
180
TYP
620
0.3
0.3
0.9
4.2
3.3
10
40
10
70
65
50
65
60
35
35
2
6
– 5.25
25/50
MAX
MAX
5.25
MAX
±10
320
150
110
140
125
170
100
100
1.8
15
70
20
90
4
5
5
8
2
2
UNITS
UNITS
UNITS
ksps
mW
mW
mA
mA
mA
µW
ms
ms
µA
µA
µA
µA
µA
pF
µs
µs
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V