参数资料
型号: AD7719BRZ
厂商: Analog Devices Inc
文件页数: 9/40页
文件大小: 0K
描述: IC ADC 16BIT 24BIT DUAL 28SOIC
标准包装: 27
位数: 16/24
采样率(每秒): 105
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 2
功率耗散(最大): 4.5mW
电压电源: 模拟和数字
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.295",7.50mm 宽)
供应商设备封装: 28-SOIC W
包装: 管件
输入数目和类型: 3 个差分,单极;3 个差分,双极
REV. A
AD7719
–17–
Table VIII. Registers—Quick Reference Guide
Power-On/Reset
Register Name
Type
Size
Default Value
Function
Communications
Write Only
8 Bits
Not Applicable
All operations to other registers are initiated through
the Communications register. This controls whether
subsequent operations are read or write operations
and also selects the register for that subsequent
operation.
Status Register
Read Only
8 Bits
0x00
Provides status information on conversions, cali-
brations, error conditions, and the validity of the
reference voltage.
Mode Register
Read/Write
8 Bits
0x00
Controls functions such as mode of operation, channel
configuration, and oscillator operation in power-down.
Main ADC (AD0CON)
Control Register
Read/Write
8 Bits
0x07
This register is used to enable the main ADC and to
configure the main ADC for range, channel selection,
16-/24-bit operation, and unipolar or bipolar operation.
Aux ADC (AD1CON)
Control Register
Read/Write
8 Bits
0x01
This register is used to enable the aux ADC and to
configure the Aux ADC for range, channel selection,
unipolar or bipolar operation, and input range.
I/O (IOCON)
Control Register
Read/Write
16 Bits
0x0000
This register is used to control and configure the
various excitation and burnout current source options
available on-chip along with controlling the I/O port.
Filter Register
Read/Write
8 Bits
0x45
This register determines the amount of averaging
performed by the sinc filter and consequently deter-
mines the data update rate of the AD7719. The filter
register determines the update rate for both the main
and aux ADCs.
B
S
MB
S
L
0
Y
D
R1
Y
D
RL
A
CF
E
R
O
N0
R
E1
R
E0
K
C
O
L
B
S
MB
S
M B
S
M B
S
MB
S
MB
S
LB
S
L B
S
L B
S
LB
S
L
7
F
S6
F
S5
F
S4
F
S3
F
S2
F
S1
F
S0
F
S
B
S
M
2
W
S
P1
W
S
P0
O
BN
I
P
2
IN
I
P
1
IN
E
2
IN
E
1
I
B
S
L
R
I
D
4
PR
I
D
3
PN
E
2
PN
E
1
PT
A
D
4
PT
A
D
3
PT
A
D
2
PT
A
D
1
P
B
S
MB
S
L
N
E
W
/
R W
00
3
A2
A1
A0
A
B
S
MB
S
L
0
F
U
B
0N
O
C
H
CD
P
C
S
O2
D
M1
D
M0
D
M
B
S
MB
S
L
N
E
0
D
AL
W1
H
C0
H
C/
U B
2
N
R1
N
R0
N
R
B
S
MB
S
L
N
E
1
D
A2
H
C
A1
H
C
A0
H
C
A/
U B
00
N
R
A
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