Rainbow-electronics MAX5100 Manual do Utilizador Página 3
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MAX5100
+2.7V to +5.5V, Low-Power, Quad, Parallel
8-Bit DAC with Rail-to-Rail Voltage Outputs
_______________________________________________________________________________________ 3
Note 1: Reduced digital code range (code 00 hex to code F0 hex) due to swing limitations when the output amplifier is loaded.
Note 2: Gain error is: [100 (V
F0,meas
- ZCE - V
F0,ideal
) / V
REF
]. Where V
F0,meas
is the DAC output voltage with input code F0 hex,
and V
F0,ideal
is the ideal DAC output voltage with input code F0 hex (i.e., V
REF
· 240 / 256).
Note 3: Output settling time is measured from the 50% point of the falling edge of WR to ±1/2LSB of V
OUT
’s final value.
Note 4: Channel-to-channel isolation is defined as the glitch energy at a DAC output in response to a full-scale step change on any
other DAC output. The measured channel has a fixed code of 80 hex.
Note 5: Digital feedthrough is defined as the glitch energy at any DAC output in response to a full-scale step change on all eight
data inputs with WR at V
DD
.
Note 6: R
L
= ∞, digital inputs at GND or V
DD
.
Note 7: Timing measurement reference level is (V
IH
+ V
IL
) / 2.
Note 8: If LDAC is activated prior to WR’s rising edge, it must stay low for t
LD
(or longer) after WR goes high.
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= V
REF
= +2.7V to +5.5V, R
L
= 10kΩ, C
L
= 100pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
DD
= V
REF
= +3V and T
A
= +25°C.)
V
REF(DC)
= 1.5V,
V
DD
= 3V,
code = FF hex
LDAC Pulse Width (Note 8)
t
LD
20
ns
Digital-to-Analog Glitch Impulse
90
nVs
Digital Feedthrough (Note 5)
0.5
nVs
Channel-to-Channel Isolation
(Note 4)
500
nVs
Output Settling Time (Note 3)
6
µs
Signal-to-Noise plus Distortion
Ratio
SINAD
70
dB
60
Multiplying Bandwidth
650
kHz
Wideband Amplifier Noise
60
µV
RMS
Output Voltage Slew Rate
0.6
V/µs
Shutdown Recovery Time t
SDR
13
µs
Time to Shutdown t
SDN
20
µs
Power-Supply Voltage V
DD
2.7 5.5
V
Supply Current (Note 6) I
DD
370 700
µA
Shutdown Current
0.001 1
µA
Address to WR Setup
t
AS
5
ns
Address to WR Hold
t
AH
0
ns
Data to WR Setup
t
DS
25
ns
Data to WR Hold
t
DH
0
ns
WR Pulse Width
t
WR
20
ns
To ±1/2LSB of final value of V
OUT
Code 80 hex to code 7F hex
I
DD
< 5µA
Code 00 to code FF hex
Code 00 to code FF hex
To 1/2LSB, from code 10 to code F0 hex
REF = 0.5Vp-p, V
REF(DC)
= 1.5V,
V
DD
= 3V, -3dB bandwidth
From code 00 to code F0 hex
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
REF = 2.5Vp-p at
1kHz
REF = 2.5Vp-p at
10kHz
DYNAMIC PERFORMANCE
POWER SUPPLIES
DIGITAL TIMING (Figure 1) (Note 7)
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