Datasheet

LTC2637
14
2637fb
TYPICAL PERFORMANCE CHARACTERISTICS
Large-Signal Response Mid-Scale Glitch Impulse Power-On Reset Glitch
Headroom at Rails
vs Output Current Exiting Power-Down to Mid-Scale Power-On Reset to Mid-Scale
Supply Current vs Logic Voltage DAC to DAC Crosstalk (Dynamic) Multiplying Bandwidth
LTC2637
T
A
= 25°C, unless otherwise noted.
2µs/DIV
V
OUT
0.5V/DIV
2637 G22
V
FS
= V
CC
= 5V
1/4 SCALE to 3/4 SCALE
SCL
5V/DIV
V
OUT
5mV/DIV
2µs/DIV
2637 G23
9TH CLOCK OF
3RD DATA BYTE
LTC2637-H12
V
CC
= 5V, 3nV•s TYP
LTC2637-L12
V
CC
= 3V, 2.1nV•s TYP
200µs/DIV
V
OUT
5mV/DIV
V
CC
2V/DIV
2637 G24
LTC2637-L
ZERO-SCALE
I
OUT
(mA)
0
V
OUT
(V)
5.0
4.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.5
0
17896543
2637 G25
102
5V SOURCING
3V (LTC2637-L) SOURCING
5V SINKING
3V (LTC2637-L) SINKING
SCL
5V/DIV
V
OUT
0.5V/DIV
5µs/DIV
2637 G26
9TH CLOCK OF
3RD DATA BYTE
DACs A TO G IN
POWER-DOWN
MODE
LTC2637H
V
CC
= 5V
INTERNAL REF
LOGIC VOLTAGE (V)
0
I
CC
(mA)
1.8
1.6
1.2
1.4
1.0
0.8
0.6
4321
2637 G28
5
SWEEP SDA, SCL,
BETWEEN 0V AND V
CC
V
CC
= 5V
V
CC
= 3V
(LTC2637-L)
SCL
5V/DIV
V
OUT
2mV/DIV
1 DAC
SWITCH 0 TO FS
2V/DIV
2µs/DIV
2637 G29
9TH CLOCK OF
3RD DATA BYTE
LTC2637-H12
V
CC
= 5V, 3nV•s TYP
C
REF
= 0.1µF
200µs/DIV
V
CC
2V/DIV
V
OUT
0.5V/DIV
2637 G27
LTC2637-H
LTC2637-L
FREQUENCY (Hz)
dB
2637 G30
2
0
–16
–14
–12
–10
–8
–6
–4
–2
–18
1k 100k 1M10k
V
CC
= 5V
V
REF(DC)
= 2V
V
REF(AC)
= 0.2V
P-P
CODE = FULL-SCALE