TDA8785 Datasheet, PDF (3/24 Pages) NXP Semiconductors – 8-bit high-speed analog-to-digital converter with gain and offset controls

Philips Semiconductors
8-bit high-speed analog-to-digital converter
with gain and offset controls
BLOCK DIAGRAM
Product specification
TDA8785
handbook, full pagewidth
VCCA1 VCCA2 _{AGND1 AGND2}
1
2
3
4
B
VRB
DEC2
Vref
DEC1
OF
6 7 36 5 35 34
REGULATORS
Vi(p)
Vi(n)
VSOFF(p)
VSOFF(n)
VFOFF(p)
VFOFF(n)
VFSAD(p)
VFSAD(n)
VDACO(p)
VDACO(n)
VFSDAC(p)
VFSDAC(n)
43
44
37
38
OFFSET
AMPLIFIER
42
41
39
40
150 Ω
9
8
10
11
DAC
VCCA
150 Ω
8 _{12 to 19}
DA7 to DA0
GAIN
ADC
8
TTL
26 to 33
OUTPUTS ₈
AD0 to AD7
TDA8785
25 _VCCO
24
OGND
CLOCK
DRIVER
20
CLKDAC
CLOCK
DRIVER
22
23
21 _MBG681
CLKADC VCCD DGND
Fig.1 Block diagram.
1997 Dec 18
3