Datasheet

f
20MHZ
CLK
( )
1.25
ADS1601
www.ti.com SBAS322D –DECEMBER 2004–REVISED OCTOBER 2011
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= –40°C to +85°C, AVDD = 5V, DVDD = IOVDD = 3V, f
CLK
= 20MHz, V
REF
= +3V, V
CM
= +2.7V, and
R
BIAS
= 60kΩ, unless otherwise noted.
ADS1601
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Analog Input
Differential input voltage (V
IN
) (AINP – AINN) 0dBFS ±0.94V
REF
V
Common-mode input voltage (V
CM
) (AINP + AINN) / 2 2.7 V
Differential input voltage (V
IN
)
0dBFS –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 92 dB
Signal-to-noise ratio (SNR) f
IN
= 100kHz, –3dBFS 87 90 dB
f
IN
= 100kHz, –6dBFS 84 87 dB
f
IN
= 500kHz, –1dBFS 91 dB
f
IN
= 500kHz, –3dBFS 89 dB
f
IN
= 500kHz, –6dBFS 87 dB
f
IN
= 10kHz, –1dBFS –91 dB
f
IN
= 10kHz, –3dBFS –100 –90 dB
f
IN
= 10kHz, –6dBFS –104 –97 dB
f
IN
= 100kHz, –1dBFS –88 dB
Total harmonic distortion (THD) f
IN
= 100kHz, –3dBFS –96 –90 dB
f
IN
= 100kHz, –6dBFS –103 –96 dB
f
IN
= 500kHz, –1dBFS –115 dB
f
IN
= 500kHz, –3dBFS –112 dB
f
IN
= 500kHz, –6dBFS –110 dB
f
IN
= 10kHz, –1dBFS 88 dB
f
IN
= 10kHz, –3dBFS 85 89 dB
f
IN
= 10kHz, –6dBFS 84 87 dB
f
IN
= 100kHz, –1dBFS 87 dB
Signal-to-noise + distortion (SINAD) f
IN
= 100kHz, –3dBFS 85 88 dB
f
IN
= 100kHz, –6dBFS 84 86 dB
f
IN
= 500kHz, –1dBFS 91 dB
f
IN
= 500kHz, –3dBFS 89 dB
f
IN
= 500kHz, –6dBFS 87 dB
f
IN
= 10kHz, –1dBFS 92 dB
f
IN
= 10kHz, –3dBFS 91 100 dB
f
IN
= 10kHz, –6dBFS 98 109 dB
f
IN
= 100kHz, –1dBFS 88 dB
Spurious-free dynamic range (SFDR) f
IN
= 100kHz, –3dBFS 90 97 dB
f
IN
= 100kHz, –6dBFS 97 105 dB
f
IN
= 500kHz, –1dBFS 120 dB
f
IN
= 500kHz, –3dBFS 118 dB
f
IN
= 500kHz, –6dBFS 115 dB
f
1
= 499kHz, –6dBFS
Intermodulation distortion (IMD) 94 dB
f
2
= 501kHz, –6dBFS
Aperture delay 4 ns
Copyright © 2004–2011, Texas Instruments Incorporated 3