LTC1275 LINER [Linear Technology], LTC1275 Datasheet - Page 5

• Manufacturer Part Number: LTC1275
• Description: 12-Bit, 300ksps Sampling A/D Converters with Reference
• Manufacturer: LINER [Linear Technology]

TI I G CHARACTERISTICS
TI I G CHARACTERISTICS
SYMBOL PARAMETER
t
t
t
t
t
t
The
temperature range; all other limits and typicals T
Note 1: Absolute maximum ratings are those values beyond which the life
of a device may be impaired.
Note 2: All voltage values are with respect to ground with DGND and
AGND wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below V
LTC1273) or above V
product can handle input currents greater than 60mA below V
for LTC1273) or above V
Note 4: When these pin voltages are taken below V
LTC1273) they will be clamped by internal diodes. This product can handle
input currents greater than 60mA below V
without latch-up. These pins are not clamped to V
Note 5: V
250kHz at 125 C, t
TRACK
7
8
9
10
11
12
HOLD
BUSY
DATA
W U
W U
RD
CS
indicates specifications which apply over the full operating
Slow Memory Mode, Parallel Read Timing Diagram
DD
Bus Relinquish Time
HBEN to RD Setup Time
HBEN to RD Hold Time
Delay Between RD Operations
Delay Between Conversions
Aperture Delay of Sample-and-Hold
= 5V (V
t
1
t
t
t
3
12
2
r
SS
= t
DD
f
= – 5V for LTC1275/LTC1276), 300kHz at 70 C and
, they will be clamped by internal diodes. This
= 5ns unless otherwise specified.
DD
DB11 TO DB0
OLD DATA
t
CONV
without latch-up.
t
6
SS
DB11 TO DB0
(ground for LTC1273)
NEW DATA
A
t
DD
= 25 C.
5
SS
SS
t
.
7
(ground for
(ground for
t
11
CONDITIONS
(Note 10)
t
See Timing Characteristics Figures (Note 5)
(Note 5)
10
Commercial
Military
Commercial
Military
SS
(ground
LTC1273/75/76 • TA03
t
1
TRACK
Note 6: Linearity, offset and full scale specifications apply for unipolar and
bipolar modes.
Note 7: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 8: Bipolar offset (LTC1275/LTC1276) is the different voltage
measured from – 0.5LSB when the LTC1275/LTC1276 output code flickers
between 0000 0000 0000 and 1111 1111 1111.
Note 9: Guaranteed by design, not subject to test.
Note 10: Recommended operating conditions.
Note11: A
specified accuracy. Therefore the minimum supply voltage for the
LTC1273 is + 4.95V. The minimum supplies for the LTC1275 are +4.75V
and – 2.45V and the minimum supplies for the LTC1276 are 4.95V.
HOLD
BUSY
DATA
RD
CS
IN
t
1
must not exceed V
ROM Mode, Parallel Read Timing Diagram
t
t
t
2
12
3
DB11 TO DB0
OLD DATA
t
4
t
CONV
t
t
5
7
LTC1275/LTC1276
DD
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
or fall below V
1000
MIN
500
600
20
20
20
40
0
0
t
11
t
TYP
1
30
25
SS
t
t
t
2
3
12
by more than 50mV for
t
4
DB11 TO DB0
LTC1273
NEW DATA
MAX
75
85
90
t
5
t
CONV
t
7
LTC1273/75/76 • TA04
UNITS
5
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns