Datasheet

LTC2657
14
2657f
2657 G38
200µs/DIV
V
CC
2V/DIV
V
OUT
10mV/DIV
ZERO-SCALE
2657 G39
250µs/DIV
V
CC
2V/DIV
V
OUT
1V/DIV
LTC2657-H
FREQUENCY (Hz)
110
NOISE VOLTAGE (nV/√Hz)
200
400
600
800
100 1k 10k 100k 1M
2657 G40
0
1000
1200
LTC2657-H
LTC2657-L
V
CC
= 5V
CODE = MID-SCALE
INTERNAL REF
C
REFCOMP
= C
REFOUT
= 0.1µF
2µV/DIV
2657 G42
1 SEC/DIV
V
REFOUT
= 1.25V
C
REFCOMP
= C
REFOUT
= 0.1µF
Noise Voltage Density
vs Frequency
DAC Output 0.1Hz to 10Hz
Voltage Noise
Reference Output 0.1Hz to 10Hz
Voltage Noise
DAC to DAC Crosstalk (Dynamic) Power On Reset to Zero-Scale Power On Reset to Mid-Scale
5µV/DIV
2657 G41
1 SEC/DIV
V
CC
= 5V, V
FS
= 2.5V
CODE = MID-SCALE
INTERNAL REF
C
REFCOMP
= C
REFOUT
= 0.1µF
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2657
2µs/DIV
2657 G37
V
OUT
0.5mV/DIV
ONE DAC
SWITCH FS-0
2V/DIV
LTC2657-H16, V
CC
= 5V, 0.8nV • s TYP
C
REFCOMP
= C
REFOUT
= 0.22µF