Datasheet

3
LTC1650
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. AV
DD
= 4.75V to 5.25V, AV
SS
= –4.75V to –5.25V, DV
DD
= 4.75V to
5.25V, REFLO = 0V, REFHI = 4.096V, V
OUT
unloaded, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply Characteristics
AV
DD
Positive Supply Voltage ● 4.75 5.0 5.25 V
DV
DD
Positive Supply Voltage ● 4.75 5.0 5.25 V
AV
SS
Negative Supply Voltage ● –4.75 –5.0 –5.25 V
I
AVDD
AV
DD
Supply Current 4.75V ≤ AV
DD
≤ 5.25V (Note 5) ● 5 7.5 mA
I
AVSS
AV
SS
Supply Current –5.25V ≤ AV
SS
≤ –4.75V (Note 5) ● –7.5 –5 mA
I
DVDD
DV
DD
Supply Current 4.75V ≤ DV
DD
≤ 5.25V (Note 5) ● 0.1 0.25 mA
PSRR AV
DD
, DV
DD
Supply Rejection 4.75V ≤ AV
DD
, DV
DD
≤ 5.25V ● 0.5 1.5 LSB/V
AV
SS
Supply Rejection –5.25V ≤ AV
SS
≤ –4.75V ● 0.5 1.5 LSB/V
Reference Input
R
IN
Reference Input Resistance ● 2.5 5 7.5 kΩ
REFHI Range ● –4.0 4.0 4.5 V
REFLO Range ● –1.0 0 1.0 V
Op Amp DC Performance
Short-Circuit Current Low V
OUT
Shorted to GND ● 25 50 mA
Short-Circuit Current High V
OUT
Shorted to V
CC
● 25 50 mA
Output Impedance Measured at Midscale 0.15 Ω
DAC Output Range Unipolar Mode (Note 9) 0V to V
REF
V
Bipolar Mode (Note 9) ±V
REF
V
AC Performance
Voltage Output Slew Rate ● 0.8 2.0 V/µs
Voltage Output Settling Time Unloaded (Note 4) 4 µs
Midscale Glitch Impulse 1.8 nV-s
Digital Feedthrough 0.05 nV-s
Output Noise Voltage Density 1kHz to 100kHz (Note 6) 30 nV/√Hz
SINAD Signal-to-Noise + Distortion Ratio REFHI = 1kHz 4V
P-P
96 dB
ELECTRICAL CHARACTERISTICS