ADS1610
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SBAS344C–AUGUST 2005–REVISED OCTOBER 2006
TERMINAL FUNCTIONS (continued)
TERMINAL
ANALOG/DIGITAL
INPUT/OUTPUT
DESCRIPTION
NAME
NO.
22
RD
Digital input; Active low
Digital output
Digital output
Digital output
Digital input
Analog
Read enable
OTR
23
Analog inputs out-of-range
Data ready
DRDY
DOUT[15:0]
CLK
24
29–44
56
Data output. DOUT[15] is the MSB and DOUT[0] is the LSB.
Clock input
AGND2
AVDD2
VCAP
57
Analog ground for AVDD2
Analog supply for modulator clocking
Bypass capacitor
58
Analog
59
Analog
VREFN
VMID
60, 61
62
Analog
Negative reference voltage
Midpoint voltage
Analog
VREFP
63, 64
Analog
Positive reference voltage
TIMING SPECIFICATIONS
t2
t1
CLK
t2
t3
t4
t4
DRDY
t6
t5
DOUT[15:0]
Data N
Data N + 1
Data N + 2
Figure 1. Data Retrieval Timing
RD, CS
t7
t8
DOUT[15:0]
Figure 2. DOUT Inactive/Active Timing
6
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