AD1555 Analog Devices, AD1555 Datasheet - Page 9

• 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
PGA0
PGA1
PGA2
PGA3
PGA4
NC = NO CONNECT
BW0
BW1
BW2
H/S
NC
V
(DO NOT CONNECT THIS PIN)
L
10
11
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
AIN(+)
AIN(–)
TIN(+)
TIN(–)
44
12 13 14 15 16 17 18 19 20 21 22
CB0
CB1
PIN 1
IDENTIFIER
NC
43
PIN CONFIGURATION
10
11
5
6
7
8
9
42
44-Lead MQFP
28-Lead PLCC
12 13 14 15 16
4
41
(Not to Scale)
3
TOP VIEW
(P-28A)
(S-44A)
40 39 38
AD1556
(Not to Scale)
AD1555
TOP VIEW
2
–9–
1
PIN 1
28 27 26
37
17 18
36 35 34
25
24
23
22
21
20
19
REFCAP1
REFIN
REFCAP2
AGND3
–V
–V
V
L
A
A
24
33
32
31
30
29
28
27
26
25
23
NC
CLKIN
SYNC
TDATA
CSEL
NC
NC
PWRDN
RESET
DGND
DGND
AD1555/AD1556