ltc1658is8-trpbf Linear Technology Corporation, ltc1658is8-trpbf Datasheet - Page 5

• Manufacturer Part Number: ltc1658is8-trpbf
• Description: Ltc1658 - 14-bit Rail-to-rail Micropower Dac
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
CLK (Pin 1): The TTL Level Input for the Serial Interface
Clock.
D
Data. Data on the D
on the rising edge of the serial clock and is loaded MSB
first. The LTC1658 requires a 16-bit word to be loaded in.
The last two bits are don’t cares.
CS/LD (Pin 3): The TTL Level Input for the Serial Inter-
face Enable and Load Control. When CS/LD is low the
CLK signal is enabled, so the data can be clocked in.
When CS/LD is pulled high, data is loaded from the shift
register into the DAC register, updating the DAC output.
PIN
IN
U
(Pin 2): The TTL Level Input for the Serial Interface
FUNCTIONS
U
–1
–2
–3
–4
–5
5
4
3
2
1
0
–55
Gain Error vs Temperature
IN
–25
U
pin is latched into the shift register
TEMPERATURE ( C)
5
W
35
U
65
95
1658 G06
125
D
Valid on the Rising Edge of the Serial Clock.
GND (Pin 5): Ground.
REF (Pin 6): Reference Input. There is a gain of one from
this pin to the output. When tied to V
swing from GND to V
within it’s offset specification of V
Information).
V
V
OUT
CC
OUT
(Pin 8): Positive Supply Input. 2.7V V
(Pin 4): Output of the Shift Register Which Becomes
(Pin 7): Buffered Rail-to-Rail DAC Output.
1LSB/DIV
Broadband Noise
BW = 1Hz TO
100kHz
CC
. The output can only swing to
200 s/DIV
CC
CC
(see Applicatons
1658 G08
LTC1658
the output will
CC
5.5V.
5