LTC1400_15 Datasheet, PDF (16/20 Pages) Linear Technology – Complete SO-8, 12-Bit, 400ksps ADC with Shutdown

LTC1400
TYPICAL APPLICATIO S
LTC1400 Interface to ADSP2181’s SPORT0 (Frame Sync is Generated from RFS0)
5V
1
V_CC
CLK ⁶
+
10µF
0.1µF
UNIPOLAR
INPUT
2
3
A_IN
CONV
LTC1400
V_REF
D_OUT
7
5
+
10µF
0.1µF ^VSS
GND
8
4
ADSP2181
SCLKO
RFSO
DR0
1400 TA05a
Logic Analyzer Waveforms Show 2.88μs Throughput Rate (Input Voltage = 2.240V, Output Code = 1000 1100 0000 = 2240₁₀)
16
Data from LTC1400 (Normal Mode)
X RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2
D1 D0
XX
1400 TA05c
Data Stored in ADSP2181’s Memory (Normal Mode, SLEN = D)
0 0 0 RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
1400 TA05d
1400fa