Rainbow Electronics MAX5295 - Manual (Page 3)

MAX5290–MAX5295
Buffered, Fast-Settling, Dual, 12-/10-/8-Bit,
Voltage-Output DACs
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ELECTRICAL CHARACTERISTICS (continued)
(AV DD = 2.7V to 3.6V, DV DD = 1.8V to AV DD , AGND = 0, DGND = 0, V REF = 2.5V, R L = 10k Ω, C
L = 100pF, T A = T MIN to T MAX , unless
otherwise noted. Typical values are at T A = +25 °C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Power-Supply Rejection
Ratio
PSRR Full-scale output, AV DD = 2.7V to 3.6V 200 µV/V
REFERENCE INPUT
Reference Input Range V REF 0.25 AV DD V
Reference Input
Resistance
R REF Normal operation (no code dependence) 145 200 k Ω
Reference Leakage
Current
I REF Shutdown mode 0.5 1 µA
DAC OUTPUT CHARACTERISTICS
Unity gain 85 SLOW mode,
full scale
Force sense 67
Unity gain 140
Output Voltage Noise
FAST mode,
full scale
Force sense 110
µV RMS
Unity-gain output 0 AV DD Output Voltage Range
(Note 4)
Force-sense output 0 AV DD / 2
V
DC Output Impedance 38 Ω
Short-Circuit Current AV DD = 3V, OUT_ to AGND, full scale, FAST mode 45 mA
Power-Up Time From DV DD applied, interface is functional 30 60 µs
Wake-Up Time Coming out of shutdown, outputs settled 40 µs
Output OUT_ and FB_
Open-Circuit Leakage
Current
Programmed in shutdown mode, force-sense
outputs only
0.01 µA
DIGITAL OUTPUTS (UPIO_)
Output High Voltage V OH I SOURCE = 2mA
DV DD -
0.5
V
Output Low Voltage V OL I SINK = 2mA 0.4 V
DIGITAL INPUTS (SCLK, CS, DIN, DSP, UPIO_)
2.7V ≤ DV
DD
≤ 3.6V 2.4
Input High Voltage V IH
DV DD < 2.7V
0.7 x
DV DD
V
2.7V ≤ DV
DD
≤ 3.6V 0.6
Input Low Voltage V IL
DV DD < 2.7V 0.2
V
Input Leakage Current I
IN
±0.1 ±1 µA
Input Capacitance C IN 10 pF