Datasheet

ADC128S052
SNAS333D –AUGUST 2005–REVISED MARCH 2013 www.ti.com
ADC128S052 Converter Electrical Characteristics
(1)
The following specifications apply for AGND = DGND = 0V, f
SCLK
= 3.2 MHz to 8 MHz, f
SAMPLE
= 200 kSPS to 500 kSPS, C
L
=
50pF, unless otherwise noted. Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
= 25°C.
Symbol Parameter Conditions Typical Limits
(2)
Units
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes 12 Bits
V
A
= V
D
= +3.0V ±0.3 ±1 LSB (max)
Integral Non-Linearity (End Point
INL
Method)
V
A
= V
D
= +5.0V ±0.4 ±1 LSB (max)
+0.3 +0.9 LSB (max)
V
A
= V
D
= +3.0V
−0.2 −0.7 LSB (min)
DNL Differential Non-Linearity
+0.6 +1.3 LSB (max)
V
A
= V
D
= +5.0V
−0.4 −0.9 LSB (min)
V
A
= V
D
= +3.0V +0.8 ±2.3 LSB (max)
V
OFF
Offset Error
V
A
= V
D
= +5.0V +1.2 ±2.3 LSB (max)
V
A
= V
D
= +3.0V ±0.05 ±1.5 LSB (max)
OEM Offset Error Match
V
A
= V
D
= +5.0V ±0.2 ±1.5 LSB (max)
V
A
= V
D
= +3.0V +0.6 ±2.0 LSB (max)
FSE Full Scale Error
V
A
= V
D
= +5.0V +0.3 ±2.0 LSB (max)
V
A
= V
D
= +3.0V ±0.05 ±1.5 LSB (max)
FSEM Full Scale Error Match
V
A
= V
D
= +5.0V ±0.2 ±1.5 LSB (max)
DYNAMIC CONVERTER CHARACTERISTICS
V
A
= V
D
= +3.0V 8 MHz
FPBW Full Power Bandwidth (−3dB)
V
A
= V
D
= +5.0V 11 MHz
V
A
= V
D
= +3.0V,
73 70 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
SINAD Signal-to-Noise Plus Distortion Ratio
V
A
= V
D
= +5.0V,
73 70 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
V
A
= V
D
= +3.0V,
73 70.8 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
SNR Signal-to-Noise Ratio
V
A
= V
D
= +5.0V,
73 70.8 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
V
A
= V
D
= +3.0V,
−90 −74 dB (max)
f
IN
= 40.2 kHz, −0.02 dBFS
THD Total Harmonic Distortion
V
A
= V
D
= +5.0V,
−89 −74 dB (max)
f
IN
= 40.2 kHz, −0.02 dBFS
V
A
= V
D
= +3.0V,
92 75 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
SFDR Spurious-Free Dynamic Range
V
A
= V
D
= +5.0V,
91 75 dB (min)
f
IN
= 40.2 kHz, −0.02 dBFS
V
A
= V
D
= +3.0V,
11.8 11.3 Bits (min)
f
IN
= 40.2 kHz
ENOB Effective Number of Bits
V
A
= V
D
= +5.0V,
11.8 11.3 Bits (min)
f
IN
= 40.2 kHz, −0.02 dBFS
V
A
= V
D
= +3.0V,
81 dB
f
IN
= 20 kHz
ISO Channel-to-Channel Isolation
V
A
= V
D
= +5.0V,
81 dB
f
IN
= 20 kHz, −0.02 dBFS
(1) Data sheet min/max specification limits are guaranteed by design, test, or statistical analysis.
(2) Tested limits are guaranteed to TI's AOQL (Average Outgoing Quality Level).
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