Datasheet

4
LTC1605
1605fc
LTC1605/LTC1605A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Positive Supply Voltage (Notes 9, 10) 4.75 5.25 V
I
DD
Positive Supply Current ● 11 16 mA
P
DIS
Power Dissipation 55 80 mW
LTC1605/LTC1605A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OL
Low Level Output Voltage V
DD
= 4.75V I
O
= 160µA 0.05 V
I
O
= 1.6mA ● 0.10 0.4 V
I
OZ
Hi-Z Output Leakage D15 to D0 V
OUT
= 0V to V
DD
, CS High ● ±10 µA
C
OZ
Hi-Z Output Capacitance D15 to D0 CS High (Note 9) ● 15 pF
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
DD
10 mA
DIGITAL INPUTS AND DIGITAL OUTPUTS
UU
LTC1605/LTC1605A
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SAMPLE(MAX)
Maximum Sampling Frequency ● 100 kHz
t
CONV
Conversion Time ● 8 µs
t
ACQ
Acquisition Time ● 2 µs
t
1
Convert Pulse Width (Note 11) ● 40 ns
t
2
Data Valid Delay After R/C↓ (Note 9) ● 8 µs
t
3
BUSY Delay from R/C↓ C
L
= 50pF ● 65 ns
t
4
BUSY Low 8 µs
t
5
BUSY Delay After End of Conversion 220 ns
t
6
Aperture Delay 40 ns
t
7
Bus Relinquish Time ● 10 35 83 ns
t
8
BUSY Delay After Data Valid ● 50 200 ns
t
9
Previous Data Valid After R/C↓ 7.4 µs
t
10
R/C to CS Setup Time (Notes 9, 10) 10 ns
t
11
Time Between Conversions 10 µs
t
12
Bus Access and Byte Delay (Notes 9, 10) 10 83 ns
TIMING CHARACTERISTICS
WU
POWER REQUIREMENTS
WU
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All voltage values are with respect to ground with DGND, AGND1
and AGND2 wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below ground or above V
ANA
=
V
DIG
= V
DD
, they will be clamped by internal diodes. This product can
handle input currents of greater than 100mA below ground or above V
DD
without latch-up.
Note 4: When these pin voltages are taken below ground, they will be
clamped by internal diodes. This product can handle input currents of
90mA below ground without latchup. These pins are not clamped to V
DD
.
Note 5: V
DD
= 5V, f
SAMPLE
= 100kHz, t
r
= t
f
= 5ns unless otherwise
specified.
Note 6: Linearity, offset and full-scale specifications apply for a V
IN
input
with respect to ground.
Note 7: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual end points of the transfer curve.
The deviation is measured from the center of the quantization band.
The ● denotes specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 5)
The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 5)
The ● denotes specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 5)