THS1408-EP_14 Datasheet, PDF (5/28 Pages) Texas Instruments – 14-BIT, 3/8 MSPS DSP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTER WITH INTERNAL REFERENCE AND PGA

THS1408-EP
14-BIT, 3/8 MSPS DSP-COMPATIBLE ANALOG-TO-DIGITAL CONVERTER
WITH INTERNAL REFERENCE AND PGA
SGLS129B − JULY 2002 − REVISED FEBRUARY 2010
electrical characteristics over recommended operating free-air temperature range,
AV_DD = DV_DD = 3.3 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
Power Supply
I_DDA
I_DDD
Analog supply current
Digital supply current
Power
Power down current
AV_DD = 3.6 V
81
DV_DD = 3.6 V
5
AV_DD = DV_DD = 3.6 V
270
20
DC Characteristics
Resolution
14
DNL Differential nonlinearity
±0.6
THS1408 at 3 MSPS
Best fit
±2
INL
Integral nonlinearity
THS1408 at 8 MSPS
Best fit
±3.5
Offset error
IN+ = IN−, PGA = 0 dB
Gain error
PGA = 0 dB
AC Characteristics
ENOB Effective number of bits
11.2 11.5
THD Total harmonic distortion
SNR Signal-to-noise ratio
SINAD Signal-to-noise ratio + distortion
SFDR Spurious free dynamic range
Analog input bandwidth
f_i = 100 kHz
f_i = 1 MHz
f_i = 4 MHz
f_i = 100 kHz
f_i = 1 MHz
f_i = 4 MHz
f_i = 100 kHz
f_i = 1 MHz
f_i = 4 MHz
f_i = 100 kHz
f_i = 1 MHz
f_i = 4 MHz
−81
−78
−77
72
70
72
71
70
69
70
70
80
71
80
80
140
MAX
90
10
360
±1
±4
±10.5
0.3
1.75
UNIT
mA
mA
mW
μA
Bits
LSB
LSB
%FSR
%FSR
Bits
dB
dB
dB
dB
MHz
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