Datasheet

f
40MHz
CLK
( )
2.5
ADS1602
www.ti.com SBAS341E –DECEMBER 2004– REVISED OCTOBER 2011
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= –40°C to +85°C, AVDD = 5V, DVDD = IOVDD = 3V, f
CLK
= 40MHz, external V
REF
= +3V, V
CM
=
+1.45V, and R
BIAS
= 37kΩ, unless otherwise noted.
ADS1602
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Analog Input
Differential input voltage (V
IN
) (AINP – AINN) 0dBFS ±V
REF
V
Common-mode input voltage (V
CM
) (AINP + AINN) / 2 1.45 V
Absolute input voltage
–0.1 4.6 V
(AINP or AINN with respect to AGND)
Dynamic Specifications
Data rate MSPS
f
IN
= 10kHz, –1dBFS 92 dB
f
IN
= 10kHz, –3dBFS 87 90 dB
f
IN
= 10kHz, –6dBFS 84 87 dB
f
IN
= 100kHz, –1dBFS 91 dB
Signal-to-noise ratio (SNR) f
IN
= 100kHz, –3dBFS 87 89 dB
f
IN
= 100kHz, –6dBFS 84 86 dB
f
IN
= 800kHz, –1dBFS 91 dB
f
IN
= 800kHz, –3dBFS 89 dB
f
IN
= 800kHz, –6dBFS 86 dB
f
IN
= 10kHz, –1dBFS –94 dB
f
IN
= 10kHz, –3dBFS –106 –92 dB
f
IN
= 10kHz, –6dBFS –108 –93 dB
f
IN
= 100kHz, –1dBFS –90 dB
Total harmonic distortion (THD) f
IN
= 100kHz, –3dBFS –96 –90 dB
f
IN
= 100kHz, –6dBFS –101 –92 dB
f
IN
= 800kHz, –1dBFS –116 dB
f
IN
= 800kHz, –3dBFS –114 dB
f
IN
= 800kHz, –6dBFS –110 dB
f
IN
= 10kHz, –1dBFS 89 dB
f
IN
= 10kHz, –3dBFS 85 90 dB
f
IN
= 10kHz, –6dBFS 82 87 dB
f
IN
= 100kHz, –1dBFS 87 dB
Signal-to-noise + distortion (SINAD) f
IN
= 100kHz, –3dBFS 85 88 dB
f
IN
= 100kHz, –6dBFS 82 86 dB
f
IN
= 800kHz, –1dBFS 91 dB
f
IN
= 800kHz, –3dBFS 89 dB
f
IN
= 800kHz, –6dBFS 86 dB
f
IN
= 10kHz, –1dBFS 95 dB
f
IN
= 10kHz, –3dBFS 90 107 dB
f
IN
= 10kHz, –6dBFS 93 112 dB
f
IN
= 100kHz, –1dBFS 91 dB
Spurious-free dynamic range (SFDR) f
IN
= 100kHz, –3dBFS 90 96 dB
f
IN
= 100kHz, –6dBFS 93 103 dB
f
IN
= 800kHz, –1dBFS 120 dB
f
IN
= 800kHz, –3dBFS 119 dB
f
IN
= 800kHz, –6dBFS 114 dB
f
1
= 995kHz, –6dBFS
Intermodulation distortion (IMD) 94 dB
f
2
= 1005kHz, –6dBFS
Aperture delay 4 ns
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