Rainbow Electronics MAX5547 - Manual (Page 3)

MAX5547
Dual, 10-Bit, Current-Sink Output DAC
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ELECTRICAL CHARACTERISTICS (continued)
(V DD = +2.7 to +5.25V, GND = 0, external reference = +2.5V, output voltage = +2.0V, T A = -40°C to +85°C. Typical values are at
V DD = +3.0V, and T A = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
External-Reference Input
Impedance
R REF 90 k Ω
DAC OUTPUTS
Code = 030h 50 1.2mA low-current
range
Code = 3FFh 1170 1200 1230
Code = 030h 150
Output Current (Note 4) I OUT _
3.6mA high-current
range
Code = 3FFh 3400 3600 3800
µA
1.2mA full-scale current 1.17
LSB Size
3.6mA full-scale current 3.52
µA
Current-Source Compliance
Voltage Range
I OUT _ = full-scale (Note 5) 0.8 V DD V
I OUT _ = 1.2mA 800 Output Impedance at Full-Scale
Current
I
OUT
_ = 3.6mA 180
k Ω
DYNAMIC PERFORMANCE
Settling Time t S To 1% (Note 6) 10 µs
f = 0.1Hz to 10Hz 0.05
Output Noise I RMS
f = 10Hz to 10kHz 0.35
LSB RMS
Supply Feedthrough 100mV, 1kHz signal added to V DD 0.85 LSB/V
Digital Feedthrough R LOAD = 500 Ω, C
LOAD = 100pF 2 pA
·
s
Digital-to-Analog Glitch Impulse R LOAD = 500 Ω, C
LOAD = 100pF 16 pA
·
s
DAC-to-DAC Full-Scale Current
Matching
2 %
POWER SUPPLIES
Supply Voltage V DD +2.70 +5.25 V
Internal reference
mode
1.1 2
Supply Current I DD
V DD = +5.25V, no load,
SCLK not switching External reference
mode
0.75 1.5
mA
LOGIC AND CONTROL INPUTS
Input High Voltage V IH (Note 7)
0.7 x
V DD
V
Input Low Voltage V IL (Note 7) 0.8 V
Input Hysteresis V HYS
0.05 x
V
DD
V
Input Capacitance C IN 10 pF
Input Leakage Current I IN ±1 µA