HI-674A Intersil Corporation, HI-674A Datasheet - Page 3

• Manufacturer Part Number: HI-674A
• Description: Complete/ 12-Bit A/D Converters with Microprocessor Interface
• Manufacturer: Intersil Corporation

Functional Block Diagram
V
REF
V
REF
NOTE: “Nibble” is a 4-bit digital word.
12/8
OUT
R/C
CS
A
CE
IN
O
DIGITAL CHIP
ANALOG CHIP
OSCILLATOR
+10V
CONTROL
REF
LOGIC
COMMON
ANALOG
CLK
10K
+
-
MSB
HI-574A, HI-674A, HI-774
POWER-UP RESET
NIBBLE A (NOTE)
12 BITS
THREE-STATE BUFFERS AND CONTROL
6-954
5K
NIBBLE B (NOTE)
BIT OUTPUTS
12 BITS
10K
SAR
DAC
OFF
BIP
5K
5K
INPUT
STROBE
20V
INPUT
10V
NIBBLE C (NOTE)
-
COMP
LSB
2.5K
V
DIGITAL
COMMON
STS
V
V
LOGIC
CC
EE