Instruction Manual

MAX5230/MAX5231
3V/5V, 12-Bit, Serial Voltage-Output Dual DACs
with Internal Reference
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX5230 (continued)
(V
DD
= +2.7V to +3.6V, OS_ = AGND = DGND = 0, R
L
= 5kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Reference External Load Regulation V
OUT
/I
OUT
0 ≤ I
OUT
≤ 100µA (sourcing) 0.1 2 µV/µA
Reference Short-Circuit Current 4 mA
DIGITAL INPUTS
Input High Voltage V
IH
0.7 x V
DD
V
Input Low Voltage V
IL
0.3 x V
DD
V
Input Hysteresis V
HYS
200 mV
Input Leakage Current I
IN
Digital inputs = 0 or V
DD
±1µA
Input Capacitance C
IN
8pF
DIGITAL OUTPUTS
Output High Voltage V
OH
I
SOURCE
= 2mA 2.3 V
Output Low Voltage V
OL
I
SINK
= 2mA 0.25 V
DYNAMIC PERFORMANCE
Voltage-Output Slew Rate SR 0.6 V/µs
Voltage-Output Settling Time
To ±0.5 LSB, V
STEP
= ±2V
(V
DD
- 0.25V) ≥ V
OUT
≥ 0.25V
10 µs
Output-Voltage Swing (Note 5) 0 to V
DD
V
OS_ Input Resistance R
OS
83 121 kΩ
Time Required for Output to Settle After
Turning on V
DD
(Note 6)
95 400 µs
Time Required for Output to Settle After
Exiting Full Power-Down (Note 6)
95 400 µs
Time Required for Output to Settle After
Exiting DAC Power-Down (Note 6)
12 160 µs
Digital Feedthrough
CS =V
DD
, f
SCLK
= 100kHz,
V
SCLK
= 3V
P-P
5 nV-s
Major-Carry Glitch Energy 90 nV-s