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ADS8504IBDWRG4 View Datasheet(PDF) - Burr-Brown -> Texas Instruments

Part NameDescriptionManufacturer
ADS8504IBDWRG4 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER BB
Burr-Brown -> Texas Instruments BB
ADS8504IBDWRG4 Datasheet PDF : 19 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADS8504
www.ti.com
SLAS434 – JUNE 2005
ELECTRICAL CHARACTERISTICS (continued)
TA = -40°C to 85°C, fs = 250 kHz, VDIG = VANA = 5 V, using internal reference (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
Full-scale error(3)(4)
Ext. 2.5-V Ref.
-0.25
0.25
Full-scale error drift
Ext. 2.5-V Ref.
±2
Bipolar zero error(3)
-1
1
Bipolar zero error drift
±0.4
Power supply sensitivity
(VDIG = VANA = VD)
AC ACCURACY
+4.75 V < VD < +5.25 V
-0.5
0.5
SFDR
THD
SINAD
Spurious-free dynamic range
Total harmonic distortion
Signal-to-(noise+distortion)
fI = 45 kHz
fI = 45 kHz
fI = 45 kHz
–60-dB Input
86
94
-95
-86
72
73
32
SNR
Signal-to-noise ratio
Full-power bandwidth(6)
fI = 45 kHz
72
73
500
SAMPLING DYNAMICS
Aperture delay
5
Transient response
FS Step
2
Overvoltage recovery(7)
150
REFERENCE
Internal reference voltage
2.48
2.5
2.52
Internal reference source current (must use
external buffer)
1
Internal reference drift
8
External reference voltage range for specified
linearity
2.3
2.5
2.7
External reference current drain
Ext. 2.5-V Ref.
100
DIGITAL INPUTS
Logic levels
VIL
Low-level input voltage
VIH
High-level input voltage
IIL
Low-level input current
IIH
High-level input current
DIGITAL OUTPUTS
-0.3
0.8
2.0
VDIG +0.3 V
±10
±10
Data format (Parallel 12-bits)
Data coding (Binary 2's complement)
VOL
Low-level output voltage
VOH
High-level output voltage
Leakage current
Output capacitance
ISINK = 1.6 mA
0.4
ISOURCE = 500 µA
4
Hi-Z state, VOUT = 0 V to VDIG
±5
Hi-Z state
15
DIGITAL TIMING
Bus access timing
83
Bus relinquish timing
83
UNIT
%FSR
ppm/°C
LSB
ppm/°C
LSB
dB (5)
dB
dB
dB
dB
kHz
ns
µs
ns
V
µA
ppm/°C
V
µA
V
V
µA
µA
V
V
µA
pF
ns
ns
(5) All specifications in dB are referred to a full-scale ±10-V input.
(6) Full-power bandwidth is defined as the full-scale input frequency at which signal-to-(noise + distortion) degrades to 60 dB, or 10 bits of
accuracy.
(7) Recovers to specified performance after 2 x FS input overvoltage.
3
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