hi7191 Intersil Corporation, hi7191 Datasheet - Page 2

• Manufacturer Part Number: hi7191
• Description: 24-bit, High Precision, Sigma Delta A/d Converter
• Manufacturer: Intersil Corporation

Pinout
Functional Block Diagram
V
V
V
INLO
INHI
CM
DGND
DRDY
SCLK
AV
V
SDIO
AV
V
SDO
V
RLO
RHI
CS
CM
SS
DD
TRANSDUCER
HI7191 (PDIP, SOIC)
10
1
2
3
4
5
6
7
8
9
BURN-OUT
CURRENT
OSC
TOP VIEW
GENERATOR
CLOCK
PGIA
1
2
OSC
2
20
19
18
17
16
15
14
13
12
11
∑
MODE
SYNC
RESET
OSC
OSC
DV
AGND
AV
V
V
INHI
INLO
DD
DD
1
2
∫
V
RHI
∑
MODULATOR
REFERENCE
DRDY RESET SYNC
CONTROL AND SERIAL INTERFACE UNIT
HI7191
INPUTS
∑ − Δ
CONTROL REGISTER
∫
V
1-BIT
RLO
D/A
CS
MODE
1
SERIAL INTERFACE
S
CLK
DIGITAL FILTER
SDIO
UNIT
SDO
June 1, 2006
FN4138.8