Datasheet

ADS831
2
SBAS087A
PACKAGE SPECIFIED
DRAWING TEMPERATURE PACKAGE ORDERING TRANSPORT
PRODUCT PACKAGE NUMBER
(1)
RANGE MARKING NUMBER MEDIA
ADS831E SSOP-20 (QSOP) 349 –40°C to +85°C ADS831E ADS831E Rails
" " " " " ADS831E/1K Tape and Reel
NOTE: (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 “ADS831E/1K” will get a single 1000-piece Tape and Reel.
PACKAGE/ORDERING INFORMATION
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instruments
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 degradation 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.
PRODUCT DEMO BOARD
ADS831 DEM-ADS831E
DEMO BOARD ORDERING INFORMATION
+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
ELECTRICAL CHARACTERISTICS
At T
A
= full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 80MHz, and external reference, unless otherwise noted.
ADS831E
PARAMETER CONDITIONS MIN TYP MAX UNITS
RESOLUTION 8 Guaranteed Bits
SPECIFIED TEMPERATURE RANGE Ambient Air –40 to +85 °C
ANALOG INPUT
Standard Single-Ended Input Range 2Vp-p 1.5 3.5 V
Optional Single-Ended Input Range 1Vp-p 2 3 V
Common-Mode Voltage 2.5 V
Optional Differential Input Range 2Vp-p 2 3 V
Analog Input Bias Current 1 µA
Input Impedance 1.25 || 5 MΩ || pF
Track-Mode Input Bandwidth –3dBFS 300 MHz
CONVERSION CHARACTERISTICS
Sample Rate 10k 80M Samples/s
Data Latency 4 Clk Cyc
DYNAMIC CHARACTERISTICS
Differential Linearity Error (largest code error)
f = 1MHz ±0.25 ±1.0 LSB
f = 10MHz ±0.35 LSB
No Missing Codes Guaranteed
Integral Nonlinearity Error, f = 1MHz ±0.5 ±2.0 LSBs
Spurious Free Dynamic Range
(1)
f = 1MHz (–1dB input) 67 dBFS
(2)
f = 10MHz (–1dB input) 50 65 dBFS
Two-Tone Intermodulation Distortion
(3)
f = 9.5MHz and 9.9MHz (–7dB each tone) –57 dBc
Signal-to-Noise Ratio (SNR) Referred to Full Scale
f = 1MHz 49 dB
f = 10MHz 46 49 dB
Signal-to-(Noise + Distortion) (SINAD) Referred to Full Scale
f = 1MHz 48.5 dB
f = 10MHz 44 48.5 dB
Effective Number of Bits
(4)
, f = 1MHz 7.8 Bits
Output Noise Input Tied to Common-Mode 0.2 LSBs rms
Aperture Delay Time 3ns
Aperture Jitter 1.2 ps rms
Overvoltage Recovery Time 2ns
Full-Scale Step Acquisition Time 2.5 ns