Datasheet

ADS931
2
SBAS060A
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instru-
ments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
+V
S
....................................................................................................... +6V
Analog Input ........................................................... (–0.3V) to (+V
S
+0.3V)
Logic Input ............................................................. (–0.3V) to (+V
S
+0.3V)
Case Temperature ......................................................................... +100°C
Junction Temperature .................................................................... +150°C
Storage Temperature ..................................................................... +150°C
ABSOLUTE MAXIMUM RATINGS
PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT
PRODUCT PACKAGE NUMBER RANGE MARKING NUMBER
(1)
MEDIA
ADS931E SSOP-28 Surface Mount 324 –40°C to +85°C ADS931E ADS931E Rails
"""""ADS931E/1K Tape and Reel
NOTES: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces
of “ADS931E/1K” will get a single 1000-piece Tape and Reel.
PACKAGE/ORDERING INFORMATION
ELECTRICAL CHARACTERISTICS
At T
A
= full specified temperature range unless otherwise noted. +V
S
= LV
DD
= +3V, specified single-ended input (1V to 2V) and sampling rate = 30MHz, unless
otherwise specified. The input range is 2.25V to 3.25V when specified for +5V operation.
ADS931E
PARAMETER CONDITIONS MIN TYP MAX UNITS
RESOLUTION 8 Bits
SPECIFIED TEMPERATURE RANGE Ambient Air –40 to +85 °C
ANALOG INPUT
Specified Full Scale Input Range
(1)
1Vp-p +1.0 +2.0 V
Common-mode Voltage +1.5 V
Analog Input Bias Current 1 µA
Input Impedance 1.25 || 5 MΩ || pF
DIGITAL INPUTS
Logic Family TTL/HCT Compatible CMOS
High Input Voltage, V
IH
+2.0 LV
DD
V
Low Input Voltage, V
IL
+0.8 V
High Input Current, I
IH
±10 µA
Low Input Current, I
IL
±10 µA
Input Capacitance 5pF
CONVERSION CHARACTERISTICS
Start Conversion Rising Edge of Convert Clock
Sample Rate 10k 33M Samples/s
Data Latency 5 Clk Cycles
DYNAMIC CHARACTERISTICS
Differential Linearity Error V
S
= +3V and +5V
f = 500kHz ±0.7 ±1.0 LSB
f = 12.5MHz ±0.7 LSB
No Missing Codes V
S
= +3V and +5V Guaranteed
Integral Nonlinearity Error, f = 500kHz V
S
= +3V and +5V ±1.0 ±2.5 LSB
Spurious Free Dynamic Range
(2)
V
S
= +3V and +5V
f = 500kHz (–1dBFS input) 49 dBFS
(3)
f = 12.5MHz (–1dBFS input) 43 49 dBFS
Two-Tone Intermodulation Distortion
(4)
f = 3.6MHz and 3.5MHz (–7dBFS each tone) 54 dBFS
Signal-to-Noise Ratio (SNR) V
S
= +3V and +5V
f = 500kHz (–1dBFS input) 48 dB
f = 12.5MHz (–1dBFS input) 44 48 dB
Signal-to-(Noise + Distortion) (SINAD) V
S
= +3V and +5V
f = 500kHz (–1dBFS input) 45 dB
f = 12.5MHz (–1dBFS input) 40 45 dB
Effective Number of Bits f = 12MHz
(5)
7.2 Bits
Differential Gain Error NTSC, PAL 2.3 %
Differential Phase Error NTSC, PAL 1 degrees