ltc2640-lz8 Linear Technology Corporation, ltc2640-lz8 Datasheet - Page 6

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

LTC2640
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (V
SYMBOL
Reference Input
I
Reference Output
Digital I/O
V
V
I
C
AC Performance
t
e
6
REF
LK
S
n
IH
IL
IN
PARAMETER
Input Voltage Range
Resistance
Capacitance
Reference Current, Power Down Mode
Output Voltage
Reference Temperature Coeffi cient
Output Impedance
Capacitive Load Driving
Short Circuit Current
Digital Input High Voltage
Digital Input Low Voltage
Digital Input Leakage
Digital Input Capacitance
Settling Time
Voltage Output Slew Rate
Capacitance Load Driving
Glitch Impulse
Multiplying Bandwidth
Output Voltage Noise Density
Output Voltage Noise
A
= 25°C. V
CONDITIONS
DAC Powered Down
V
V
V
V
V
V
(Note 8)
V
±0.39% (±1LSB at 8 Bits)
±0.098% (±1LSB at 10 Bits)
±0.024% (±1LSB at 12 Bits)
At Midscale Transition
External Reference
At f = 1kHz, External Reference
At f = 10kHz, External Reference
At f = 1kHz, Internal Reference
At f = 10kHz, Internal Reference
0.1Hz to 10Hz, External Reference
0.1Hz to 10Hz, Internal Reference
0.1Hz to 200kHz, External Reference
0.1Hz to 200kHz, Internal Reference,
C
CC
CC
CC
CC
CC
IN
CC
REF
The
= GND to V
= 5.5V; REF Shorted to GND
= 3.6V to 5.5V
= 2.7V to 3.6V
= 4.5V to 5.5V
= 2.7V to 4.5V
= 3V (Note 9)
= 0.33μF
l
CC
denotes the specifi cations which apply over the full operating
= 2.7V to 5.5V, V
CC
FS
= 2.5V)
OUT
unloaded unless otherwise specifi ed.
l
l
l
l
l
l
l
l
l
l
1.240
MIN
160
2.4
0
2
1.250
0.01
TYP
190
±10
500
300
140
130
160
150
650
670
7.5
0.5
2.5
3.2
3.8
4.1
2.1
10
20
20
1
1.260
MAX
V
220
0.1
0.8
0.6
2.5
±1
CC
ppm/°C
nV√Hz
nV√Hz
nV√Hz
nV√Hz
UNITS
μV
μV
μV
μV
2640fa
nV•s
V/μs
kHz
mA
kΩ
kΩ
P-P
P-P
P-P
P-P
μA
μA
pF
μF
pF
μs
μs
μs
pF
V
V
V
V
V
V