LTC1605CN Linear Technology, LTC1605CN Datasheet - Page 7

• Manufacturer Part Number: LTC1605CN
• Description: IC A/D CONV 16BIT SAMPLNG 28-DIP
• Manufacturer: Linear Technology

Specifications of LTC1605CN

• Number Of Bits: 16
• Sampling Rate (per Second): 100k
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 80mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

on Pin 15 and bit 8 is output on Pin 22. Bit 7 is output on
Pin 6 and the LSB is output on Pin 13.
R/C (Pin 24): Read/Convert Input. With CS low, a falling
edge on R/C puts the internal sample-and-hold into the
hold state and starts a conversion. With CS low, a rising
edge on R/C enables the output data bits.
CS (Pin 25): Chip Select. Internally OR’d with R/C. With
R/C low, a falling edge on CS will initiate a conversion.
With R/C high, a falling edge on CS will enable the output
data.
FUNCTIONAL BLOCK DIAGRA
TEST CIRCUITS
PIN
U
U
DBN
FUNCTIONS
A. HI-Z TO V
AGND1
AGND2
(2.5V)
DGND
CAP
REF
V
IN
U
1k
U
OH
Load Circuit for Access Timing
AND V
20k
4k
OL
U
REF BUF
TO V
2.5V REF
C
OH
L
10k
INTERNAL
CLOCK
4k
B. HI-Z TO V
DBN
OL
AND V
5V
1k
16-BIT CAPACITIVE DAC
SUCCESSIVE APPROXIMATION
W
CS
C
OH
LTC1605 • TC01
L
TO V
C
C
SAMPLE
SAMPLE
CONTROL LOGIC
OL
REGISTER
R/C
BUSY (Pin 26): Output Shows Converter Status. It is low
when a conversion is in progress. Data valid on the rising
edge of BUSY. CS or R/C must be high when BUSY rises
or another conversion will start without time for signal
acquisition.
V
a 0.1µF ceramic and a 10µF tantalum capacitor.
V
27.
ANA
DIG
DBN
BYTE
(Pin 28): 5V Digital Supply. Connect directly to Pin
(Pin 27): 5V Analog Supply. Bypass to ground with
BUSY
A. V
1k
Load Circuit for Output Float Delay
ZEROING SWITCHES
16
OH
TO HI-Z
+
–
COMP
OUTPUT LATCHES
50pF
DBN
LTC1605 • BD
B. V
LTC1605
OL
•
•
•
5V
TO HI-Z
D15
D0
V
V
1k
LTC1605 • TC02
ANA
DIG
50pF
1605fc
7