Datasheet
DAC7552
www.ti.com
SLAS442D –JANUARY 2005– REVISED JUNE 2011
ELECTRICAL CHARACTERISTICS (continued)
V
DD
= 2.7 V to 5.5 V, V
REF
= V
DD
, R
L
= 2 kΩ to GND; C
L
= 200 pF to GND; all specifications –40°C to 105°C, unless otherwise
specified
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
OUTPUT CHARACTERISTICS
(2)
Output voltage range 0 VREF V
Output voltage settling time R
L
= 2 kΩ; 0 pF < C
L
< 200 pF 5 µs
Slew rate 1.8 V/µs
Capacitive load stability R
L
= ∞ 470
pF
R
L
= 2 kΩ 1000
Digital-to-analog glitch impulse 1 LSB change around major carry 0.1 nV-s
Channel-to-channel crosstalk 1-kHz full-scale sine wave, –100 dB
outputs unloaded
Digital feedthrough 0.1 nV-s
Output noise density (10-kHz offset 120 nV/rtHz
frequency)
Total harmonic distortion F
OUT
= 1 kHz, F
S
= 1 MSPS, –85 dB
BW = 20 kHz
DC output impedance 1 Ω
Short-circuit current V
DD
= 5 V 50
mA
V
DD
= 3 V 20
Power-up time Coming out of power-down mode, 15
V
DD
= 5 V
µs
Coming out of power-down mode, 15
V
DD
= 3 V
REFERENCE INPUT
VREF Input range 0 V
DD
V
Reference input impedance V
REF
A and V
REF
B shorted together 50 kΩ
V
REF
A = V
REF
B = V
DD
= 5 V, 100 250
V
REF
A and V
REF
B shorted together
Reference current µA
V
REF
A = V
REF
B = V
DD
= 3 V, 60 123
V
REF
A and V
REF
B shorted together
LOGIC INPUTS
(2)
Input current ±1 µA
V
IN_L
, Input low voltage IOV
DD
≥ 2.7 V 0.3 IOV
DD
V
V
IN_H
, Input high voltage IOV
DD
≥ 2.7 V 0.7 IOV
DD
V
Pin capacitance 3 pF
POWER REQUIREMENTS
V
DD,
, IOV
DD
(3)
2.7 5.5 V
I
DD
(normal operation) DAC active and excluding load current
V
DD
= 3.6 V to 5.5 V 300 440
V
IH
= IOV
DD
and V
IL
= GND µA
V
DD
= 2.7 V to 3.6 V 250 400
I
DD
(all power-down modes)
V
DD
= 3.6 V to 5.5 V 0.2 2
V
IH
= IOV
DD
and V
IL
= GND µA
V
DD
= 2.7 V to 3.6 V 0.05 2
POWER EFFICIENCY
I
OUT
/I
DD
I
LOAD
= 2 mA, V
DD
= 5 V 93%
(2) Specified by design and characterization, not production tested. For 1.8 V < IOV
DD
< 2.7 V, It is recommended that
V
IH
= IOV
DD
, V
IL
= GND.
(3) IOV
DD
operates down to 1.8 V with slightly degraded timing, as long as V
IH
= IOV
DD
and V
IL
= GND.
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