AD1555 Analog Devices, AD1555 Datasheet - Page 7

• Manufacturer Part Number: AD1555
• Description: 24-Bit, 121 dB typical SNR, Sigma-Delta A/D converter with Integrated PGA
• Manufacturer: Analog Devices

Specifications of AD1555

• Resolution (bits): 24bit
• # Chan: 2
• Sample Rate: 256kSPS
• Interface: Byte,Ser
• Analog Input Type: Diff-Bip,SE-Bip
• Ain Range: Bip 2.25V/(PGA Gain)
• Adc Architecture: Sigma-Delta Modulator
• Pkg Type: LCC

REV. B
SCLK
DRDY
RSEL
DOUT
R/W
SCLK
R/W
DIN
CS
CS
t
15
t
t
t
t
21
17
19
t
t
t
16
t
t
t
22
18
20
29
30
31
MSB
t
MSB
32
MSB–1
t
24
t
26
Figure 6. Serial Write Timing
t
Figure 5. Serial Read Timing
23
MSB–1
t
25
–7–
t
LSB+1
26
t
24
t
27
LSB+1
t
25
LSB
LSB
AD1555/AD1556
HI-Z
t
28
t
33