Datasheet

3
LTC2601/LTC2611/LTC2621
2601fa
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
REF = 4.096V (V
CC
= 5V), REF = 2.048V (V
CC
= 2.5V), V
OUT
unloaded, unless otherwise noted. (Note 8)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSR Power Supply Rejection V
CC
= 5V ±10% –80 dB
V
CC
= 3V ±10% ● –80 dB
R
OUT
DC Output Impedance V
REF
= V
CC
= 5V, Midscale; –15mA ≤ I
OUT
≤ 15mA ● 0.04 0.15 Ω
V
REF
= V
CC
= 2.5V, Midscale; –7.5mA ≤ I
OUT
≤ 7.5mA ● 0.05 0.15 Ω
I
SC
Short-Circuit Output Current V
CC
= 5.5V, V
REF
= 5.5V
Code: Zero Scale; Forcing Output to V
CC
● 15 35 60 mA
Code: Full Scale; Forcing Output to GND
● 15 39 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 27 50 mA
Reference Input
Input Voltage Range ● 0V
CC
V
Resistance Normal Mode ● 88 124 160 kΩ
Capacitance 15 pF
I
REF
Reference Current, Power Down Mode DAC 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) ● 0.375 0.55 mA
V
CC
= 3V (Note 3) ● 0.30 0.45 mA
DAC Powered Down (Note 3) V
CC
= 5V ● 0.40 1 µA
DAC 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
= 2.5V to 5.5V ● 0.6 V
V
OH
Digital Output High Voltage Load Current = –100µA ● V
CC
– 0.4 V
V
OL
Digital Output Low Voltage Load Current = +100µA ● 0.4 V
I
LK
Digital Input Leakage V
IN
= GND to V
CC
● ±1 µA
C
IN
Digital Input Capacitance (Note 4) ● 8pF
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. REF = 4.096V (V
CC
= 5V), REF = 2.048V (V
CC
= 2.5V), V
OUT
unloaded,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
GE Gain Error ● ±0.03 ±0.7 ±0.1 ±0.7 ±0.05 ±0.7 %FSR
Gain Temperature ±2 ±2 ±2 ppm/°C
Coefficient
LTC2621/LTC2621-1 LTC2611/LTC2611-1 LTC2601/LTC2601-1