ltc2640-lz8 Linear Technology Corporation, ltc2640-lz8 Datasheet - Page 13

• Manufacturer Part Number: ltc2640-lz8
• Description: Single 12-/10-/8-bit Spi Vout Dacs With Bidirectional Reference
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
LTC2640
0.5V/DIV
5mV/DIV
2V/DIV
CS/LD
5V/DIV
CS/LD
V
–0.1
–0.2
–0.3
–0.4
V
OUT
0.4
0.3
0.2
0.1
0.0
OUT
2.5
Gain Error vs V
Midscale-Glitch Impulse
Exiting Power-Down to Midscale
3
3.5
V
4μs/DIV
LTC2640-H12, V
3.0nV-s TYP
LTC2640-L12, V
2.1nV-s TYP
2μs/DIV
CC
CC
4
(V)
4.5
EXTERNAL REF .
LTC2640-H
V
CC
REF
CC
5
= 3V:
= 5V:
= 2.5V
2640 G24
2640 G30
2640 G27
5.5
2mV/DIV
2V/DIV
V
–0.1
–0.2
–0.3
–0.4
V
OUT
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0.4
0.3
0.2
0.1
0.0
CC
–50 –25
0
Gain Error vs Temperature
Power-On Reset Glitch
Supply Current vs Logic Voltage
LTC2640-L
1
0
LOGIC VOLTAGE (V)
TEMPERATURE (°C)
V
(LTC2640-L)
CC
25
2
200μs/DIV
= 3V
V
CC
SWEEP SCK, SDI, CS/LD
50
= 5V
ZERO-SCALE
AND CLR BETWEEN
3
75
EXTERNAL REF .
100 125 150
0V AND V
V
REF
4
= 2.5V
T
2640 G25
2640 G28
A
2640 G31
CC
= 25°C, unless otherwise noted.
5
0.5V/DIV
1V/DIV
5V/DIV
V
V
CLR
OUT
3.5
3.0
2.5
2.0
1.5
1.0
0.5
5.0
4.5
4.0
OUT
0
0
Large-Signal Response
Headroom at Rails
vs Output Current
Hardware CLR
V
1/4 SCALE TO 3/4 SCALE
FS
1
3V (LTC2640-L) SINKING
5V SOURCING
3V (LTC2640-L) SOURCING
= V
2
CC
= 5V
3
4
I
OUT
1μs/DIV
2μs/DIV
LTC2640
5
(mA)
5V SINKING
6
7
LTC2640-LZ
8
13
2640 G29
9
2640 G32
2640 G26
2640fa
10