ADS8380 Datasheet, PDF (24/35 Pages) Burr-Brown (TI) – 18-BIT, 600-kHz, PSEUDO-DIFFERENTIAL INPUT, MICROPOWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH SERIAL INTERFACE AND REFERENCE

ADS8380
SLAS387A – NOVEMBER 2004 – REVISED DECEMBER 2004
www.ti.com
PD
SDO
t_w4
t_d10
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ_InvÎÎÎ_alidÎÎÎ_DataÎÎÎÎÎÎÎÎÎ ValidData
t_d18
t_d11
1
2
3
BUSY
REFOUT
I_CC
Full I_CC
td16 _{ICC PD}
t_d17
Full I_CC
Figure 53. Device Full Power Down/Resume (Internal Refernce Used)
PD
SDO
t_w4
t_d10
BUSY
I_CC
t_d16
Full I_CC
I_CC PD
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ_tdÎÎÎÎ₁₈ ÎÎÎÎ_InÎÎÎÎ_valiÎÎÎÎ_dDaÎÎÎÎ_ta ÎÎÎÎ _ValidData
t_d11
1
2
3
t_acq1
Full I_CC
Figure 54. Device Full Power Down/Resume (External Reference Used)
NAP MODE
Nap mode is automatically inserted at the end of a conversion if CONVST_QUAL is held low at EOC. The
device can be operated in nap mode at the end of every conversion for saving power at lower throughputs.
Another way to use this mode is to convert multiple times and then enter nap mode. The minimum sampling
time after a nap state is t_acq1 + t_d18 = t_acq2.
24
Submit Documentation Feedback