Datasheet

LTC2752
8
2752f
500ns/DIV
UPD
5V/DIV
GATED
SETTLING
WAVEFORM
100µV/DIV
(AVERAGED)
2752 G14
LT1468 AMP; C
FEEDBACK
= 20pF
0V TO 10V STEP
V
REF
= –10V; SPAN CODE = 0000
t
SETTLE
= 1.7µs to 0.0015% (16 BITS)
Typical perForMance characTerisTics
V
DD
(V)
2.5
0.5
LOGIC THRESHOLD (V)
0.75
1
1.25
1.5
2
3
3.5 4 4.5
5 5.5
1.75
2752 G12
RISING
FALLING
Logic Threshold
vs Supply Voltage
Supply Current
vs Logic Input Voltage
Supply Current
vs Clock Frequency
Midscale Glitch (V
DD
= 3V)
Settling Full-Scale Step
DIGITAL INPUT VOLTAGE (V)
0
SUPPLY CURRENT (mA)
3
4
5
4
2752 G11
2
1
0
1
2
3
5
V
DD
= 5V
CLR, LDAC, SDI, SCK,
CS/LD TIED TOGETHER
V
DD
= 3V
SCK FREQUENCY (Hz)
1
0.0001
SUPPLY CURRENT (mA)
0.001
0.01
0.1
1
10
100
V
DD
= 5V
100 10k 1M 100M
2752 G13
V
DD
= 3V
ALTERNATING ZERO
AND FULL-SCALE
Midscale Glitch (V
DD
= 5V)
500ns/DIV
CS/LD
5V/DIV
V
OUT
5mV/DIV
(AVERAGED)
2752 G15
0V TO 5V RANGE
LT1468 OUTPUT AMPLIFIER
C
FEEDBACK
= 50pF
FALLING MAJOR CARRY TRANSITION.
RISING TRANSITION IS SIMILAR OR BETTER.
0.6nV•s TYP
500ns/DIV
CS/LD
5V/DIV
V
OUT
5mV/DIV
(AVERAGED)
2752 G16
0V TO 5V RANGE
LT1468 OUTPUT AMPLIFIER
C
FEEDBACK
= 50pF
FALLING MAJOR CARRY TRANSITION.
RISING TRANSITION IS SIMILAR OR BETTER.
2.2nV•s TYP
V
DD
= 5V, V
RINX
= 5V, T
A
= 25°C, unless otherwise noted.