Datasheet

3
LTC2602/LTC2612/LTC2622
2602fa
E
LECTR
IC
AL C CHARA TERIST
ICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 2.5V to 5.5V, V
REF
≤ V
CC
, V
OUT
unloaded, unless otherwise noted.
LTC2602/LTC2612/LTC2622
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSRR Power Supply Rejection Ratio V
CC
= 5V ±10% –80 dB
R
OUT
DC Output Impedance V
REF
= V
CC
= 5V, Midscale; –15mA ≤ I
OUT
≤ 15mA ● 0.05 0.15 Ω
V
REF
= V
CC
= 2.5V, Midscale; –7.5mA ≤ I
OUT
≤ 7.5mA ● 0.05 0.15 Ω
DC Crosstalk (Note 4) Due to Full Scale Output Change (Note 5) ±30 µV
Due to Load Current Change ±16 µV/mA
Due to Powering Down (per Channel) ±4 µV
I
SC
Short-Circuit Output Current V
CC
= 5.5V, V
REF
= 5.5V
Code: Zero Scale; Forcing Output to V
CC
● 15 34 60 mA
Code: Full Scale; Forcing Output to GND
● 15 38 60 mA
V
CC
= 2.5V, V
REF
= 2.5V
Code: Zero Scale; Forcing Output to V
CC
● 7.5 20 50 mA
Code: Full Scale; Forcing Output to GND
● 7.5 28 50 mA
Reference Input
Input Voltage Range ● 0V
CC
V
Resistance Normal Mode ● 44 64 80 kΩ
Capacitance 23 pF
I
REF
Reference Current, Power Down Mode All DACs Powered Down ● 0.001 1 µA
Power Supply
V
CC
Positive Supply Voltage For Specified Performance ● 2.5 5.5 V
I
CC
Supply Current V
CC
= 5V (Note 3) ● 0.7 1.3 mA
V
CC
= 3V (Note 3) ● 0.6 1 mA
All DACs Powered Down (Note 3) V
CC
= 5V ● 0.35 1 µA
All DACs Powered Down (Note 3) V
CC
= 3V ● 0.10 1 µA
Digital I/O
V
IH
Digital Input High Voltage V
CC
= 2.5V to 5.5V ● 2.4 V
V
CC
= 2.5V to 3.6V ● 2.0 V
V
IL
Digital Input Low Voltage V
CC
= 4.5V to 5.5V ● 0.8 V
V
CC
= 2.7V to 5.5V ● 0.6 V
V
CC
= 2.5V to 5.5V ● 0.5 V
I
LK
Digital Input Leakage V
IN
= GND to V
CC
● ±1 µA
C
IN
Digital Input Capacitance (Note 6) ● 8pF
LTC2622 LTC2612 LTC2602
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
AC Performance
t
s
Settling Time (Note 8) ±0.024% (±1LSB at 12 Bits) 7 7 7 µs
±0.006% (±1LSB at 14 Bits) 9 9 µs
±0.0015% (±1LSB at 16 Bits) 10 µs
Settling Time for ±0.024% (±1LSB at 12 Bits) 2.7 2.7 2.7 µs
1LSB Step (Note 9) ±0.006% (±1LSB at 14 Bits) 4.8 4.8 µs
±0.0015% (±1LSB at 16 Bits) 5.2 µs
Voltage Output Slew Rate 0.80 0.80 0.80 V/µs
Capacitive Load Driving 1000 1000 1000 pF
Glitch Impulse At Midscale Transition 12 12 12 nV • s
Multiplying Bandwidth 180 180 180 kHz
e
n
Output Voltage Noise At f = 1kHz 120 120 120 nV/√Hz
Density At f = 10kHz 100 100 100 nV/√Hz
Output Voltage Noise 0.1Hz to 10Hz 15 15 15 µV
P-P
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