SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013
ELECTRICAL CHARACTERISTICS
At T
A
= –40°C to +105°C, AV
DD
= DV
DD
= 4.5 V to 5.5 V, AV
CC
= +15 V, AGND = DGND = 0 V, IOV
DD
= 2.7 V to 5.5 V,
internal 2.5-V reference, and the DAC output span = 0 V to 5 V, unless otherwise noted.
PARAMETER
DAC PERFORMANCE
DAC DC ACCURACY
Resolution
T
A
= –40°C to +105°C, measured by line passing
through codes 020h and FFFh
T
A
= –40°C to +125°C, measured by line passing
through codes 020h and FFFh
T
A
= –40°C to +125°C, measured by line passing
through codes 020h and FFFh
T
A
= +25°C, DAC output = 5.0 V
T
A
= +25°C, DAC output = 12.5 V
T
A
= +25°C, DAC output = 0 V to +5 V,
code 020h
T
A
= +25°C, DAC output = 0 V to +12.5 V,
code 020h
±1
T
A
= –40°C to +125°C, external reference,
output = 0 V to +5 V
T
A
= –40°C to +125°C, external reference,
output = 0 V to +12.5 V
±0.025
–0.15
±2
±0.15
±0.3
±0.3
12
±1
±1.25
±1
±10
±30
±2
±5
Bits
LSB
LSBs
LSB
mV
mV
mV
mV
ppm/°C
%FSR
%FSR
ppm/°C
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INL
Relative accuracy
DNL
TUE
Differential nonlinearity
Total unadjusted error
Offset error
Offset error temperature coefficient
Gain error
Gain temperature coefficient
DAC OUTPUT CHARACTERISTICS
Output voltage range
(1)
T
A
= –40°C to +125°C, V
REF
= 2.5 V, gain = 2
T
A
= –40°C to +125°C, V
REF
= 2.5 V, gain = 5
DAC output = 0 V to +5 V, code 400h to C00h,
to 1/2 LSB, from CS rising edge, R
L
= 2 kΩ,
C
L
= 200 pF
Full-scale current shorted to ground
Source within 200 mV of supply, T
A
= +25°C
Sink within 300 mV of supply, T
A
= +25°C
Load current
DAC output = 0 V to +5 V, code B33h. Source and
sink with voltage drop < 25 mV,
T
A
= –40°C to +95°C
R
L
= infinite
Code 800h
AV
CC
0 V to 5 V, 2-ms ramp
Code changes from 7FFh to 800h, 800h to 7FFh
Device is not accessed
T
A
= +25°C, at 1 kHz, code 800h, gain = 2,
excludes reference
f = 0.1 Hz to 10 Hz, excludes reference
DAC REFERENCE INPUT
Reference voltage input range
Input current
(2)
T
A
= –40°C to +125°C, REF-DAC pin
V
REF
= 2.5 V
1
(2)
0
0
3
1.5
5
12.5
V
V
µs
V/µs
mA
mA
mA
mA
nF
Output voltage settling time
(2)
Slew rate
(2)
Short-circuit current
(2)
30
+10
–10
±8
10
0.3
5
0.15
0.15
81
8
Capacitive load stability
(2)
DC output impedance
Power-on overshoot
Digital-to-analog glitch energy
Digital feedthrough
Output noise
Ω
mV
nV-s
nV-s
nV/√Hz
µV
PP
2.6
V
µA
170
(1)
(2)
The output voltage must not be greater than AV
CC
. See the
section for further details.
Sampled during initial release to ensure compliance; not subject to production testing.
Copyright © 2013, Texas Instruments Incorporated
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