Datasheet

LTC2704
4
2704fd
ELECTRICAL CHARACTERISTICS
The l denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are T
A
= 25°C,
V
+
1
= V
+
2
= 15V, V
–
= –15V, V
DD
= 5V, REF1 = REF2 = 5V, AGND = AGNDx = REFG1 = REFG2 = GND = 0V.
SYMBOL PARAMETER CONDITIONS
LTC2704-12 LTC2704-14 LTC2704-16
UNITSMIN TYP MAX MIN TYP MAX MIN TYP MAX
SR Slew Rate R
L
= 2k, V
+
/V
–
= ±15V (Note 2)
R
L
= 2k, V
+
/V
–
= ±5V (Note 2)
l
l
2.2
2.0
3
2.8
2.2
2.0
3
2.8
2.2
2.0
3
2.8
V/µs
V/µs
Capacitive Load
Driving
Within Maximum Load Current 1000 1000 1000 pF
The l denotes specifi cations which apply over the full operating
temperature range, otherwise specifi cations are T
A
= 25°C, V
+
1
= V
+
2
= 15V, V
–
= –15V, V
DD
= 5V, REF1 = REF2 = 5V, AGND = AGNDx =
REFG1 = REFG2 = GND = 0V.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Inputs
REF1, REF2 Input Voltage V
+
/V
–
= ±15V, 0V to 5V Span (Note 2)
l
–14.5 14.5 V
Resistances
R
REF1,
R
REF2
Reference Input Resistance
l
57 k
R
FBx
Output Feedback Resistance
l
710 k
R
VOSX
Offset Adjust Input Resistance
l
700 1000 k
AC Performance (Note 4)
Glitch Impulse 0V to 5V Range, Midscale Transition 2 nV-s
Crosstalk 10V Step on V
OUTA
DAC B: 0V to 5V Range, Full Scale
DAC B: 0V to 10V Range, Full Scale
2
3
nV-s
nV-s
Digital Feedthrough ±10V Range, Midscale 0.2 nV-s
Multiplying Feedthrough Error 0V to 10V Range, V
REF
= ±5V, 10kHz Sine Wave 0.35 mV
P-P
Multiplying Bandwidth Span = 0V to 5V, Full Scale
Span = 0V to 10V, Full Scale
300
250
kHz
kHz
Output Noise Voltage Density 10kHz
Span = 0V to 5V, Midscale
Span = 0V to 10V, Midscale
30
50
nV/√Hz
nV/√Hz
Output Noise Voltage 0.1Hz to 10Hz
Span = 0V to 5V, Midscale
Span = 0V to 10V, Midscale
0.8
1.2
µV
RMS
µV
RMS
Power Supply
I
DD
Supply Current, V
DD
Digital Inputs = 0V or V
DD
l
0.5 2 µA
I
S
Supply Current, V
+
/V
–
V
+
/V
–
= ±15V, ±10%; V
REF
= 5V, V
OUT
= 0V (Note 2)
V
+
/V
–
= ±5V, ±10%; V
REF
= 2V, V
OUT
= 0V (Note 2)
Sleep Mode—All DACs (Note 4)
l
l
17.5
17.0
20
18
1
mA
mA
mA
V
DD
Logic Supply Voltage
l
2.7 5.5 V
V
+
1
/V
+
2
Positive Analog Supply Voltage
l
4.5 16.5 V
V
–
Negative Analog Supply Voltage
l
–16.5 –4.5 V
Digital Inputs/Outputs
V
IH
Digital Input High Voltage V
DD
= 2.7V to 5.5V
V
DD
= 2.7V to 3.3V
l
l
2.4
2.0
V
V
V
IL
Digital Input Low Voltage V
DD
= 2.7V to 5.5V
V
DD
= 4.5V to 5.5V
l
l
0.6
0.8
V
V
V
OH
Digital Output High Voltage I
OH
= 200µA
l
V
CC
– 0.4 V
V
OL
Digital Output Low Voltage I
OL
= 200µA
l
0.4 V
I
IN
Digital Input Current
l
0.001 ±1 µA