收藏本站

ADE7759
Test Circuits
V DD
V DD
I
10 F
100nF
100nF
10 F
I
10 F
100nF
100nF
10 F
1k
AV DD DV DD RESET
DIN
di/dt CURRENT
SENSOR
100
1k
AV DD DV DD RESET
DIN
U1
ADE7759
U1
ADE7759
RB
33nF
1k
33nF
V1P
V1N
DOUT
SCLK
CS
TO SPI BUS
(USED ONLY FOR
CALIBRATION)
33nF
100
33nF
33nF
1k
33nF
V1P
V1N
DOUT
SCLK
CS
TO SPI BUS
(USED ONLY FOR
CALIBRATION)
110V
1k
600k
1k
10 F
33nF
33nF
100nF
V2N
V2P
REF IN/OUT
CLKOUT
CLKIN
IRQ
SAG
ZX
CF
Y1 22pF
3.58MHz
22pF
NOT CONNECTED
U3
110V
1k
600k
1k
10 F
33nF
33nF
100nF
V2N
V2P
REF IN/OUT
CLKOUT
CLKIN
IRQ
SAG
ZX
CF
Y1 22pF
3.58MHz
22pF
NOT CONNECTED
U3
CT TURN RATIO = 1800:1
CHANNEL 2 GAIN = 1
GAIN (CH1) RB
AGND DGND
TO
FREQUENCY
COUNTER
CHANNEL 1 GAIN = 4
CHANNEL 2 GAIN = 1
AGND DGND
TO
FREQUENCY
COUNTER
1
10
4
2.5
PS2501-1
PS2501-1
Test Circuit 1. Performance Curve (Integrator OFF)
ANALOG INPUTS
The ADE7759 has two fully differential voltage input channels.
The maximum differential input voltage for input pairs V1P/V1N
and V2P/V2N are ± 0.5 V. In addition, the maximum signal
level on analog inputs for V1P/V1N and V2P/V2N are ± 0.5 V
with respect to AGND.
Each analog input channel has a PGA (Programmable Gain
Amplifier) with possible gain selections of 1, 2, 4, 8, and 16. The
gain selections are made by writing to the gain register—see
Figure 5. Bits 0 to 2 select the gain for the PGA in Channel 1 and
the gain selection for the PGA in Channel 2 is made via Bits 5
to 7. Figure 4 shows how a gain selection for Channel 1
Test Circuit 2. Performance Curve (Integrator ON)
In addition to the PGA, Channel 1 also has a full-scale input
range selection for the ADC. The ADC analog input range
selection is also made using the gain register—see Figure 5. As
mentioned previously the maximum differential input voltage is
0.5 V. However, by using Bits 3 and 4 in the gain register, the
maximum ADC input voltage can be set to 0.5 V, 0.25 V, or
0.125 V. This is achieved by adjusting the ADC reference—see
Reference Circuit section. Table I summarizes the maximum
differential input signal level on Channel 1 for the various ADC
range and gain selections.
Table I. Maximum Input Signal Levels for Channel 1
is made using the gain register.
Max Signal
ADC Input Range Selection
GAIN[7:0]
Channel 1
0.5 V
0.25 V
0.5 V
Gain = 1
Gain = 2
0.25 V 0.125 V
Gain = 1
V1P
GAIN (K)
SELECTION
0.125 V
0.0625 V
0.0313 V
0.0156 V
Gain = 4
Gain = 8
Gain = 16
Gain = 2
Gain = 4
Gain = 8
Gain = 16
Gain = 1
Gain = 2
Gain = 4
Gain = 8
0.00781 V
Gain = 16
V IN
K
V IN
GAIN REGISTER *
CHANNEL 1 AND CHANNEL 2 PGA CONTROL
V1N
+
7 6 5 4 3 2 1 0
0
0
0
0
0
0
0
0
ADDR:
OFFSET ADJUST
0AH
( 50mV)
PGA 2 GAIN SELECT
PGA 1 GAIN SELECT
000 =
001 =
1
2
000 =
001 =
1
2
CH1OS[7:0]
BIT 0 to 5: SIGN MAGNITUDE CODED OFFSET CORRECTION
BIT 6: NOT USED
BIT 7: DIGITAL INTEGRATOR (ON = 1, OFF = 0; DEFAULT ON)
Figure 4. PGA in Channel 1
010 =
011 =
100 =
4
8
16
* REGISTER CONTENTS
SHOW POWER-ON DEFAULTS
010 = 4
011 = 8
100 = 16
CHANNEL 1 FULL-SCALE SELECT
00 = 0.5V
01 = 0.25V
10 = 0.125V
Figure 5. Analog Gain Register
REV. A
–11 –
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
EVAL-ADE7762EBZ BOARD EVALUATION FOR ADE7762
EVAL-ADE7763ZEB BOARD EVALUATION FOR ADE7763
EVAL-ADE7816EBZ BOARD EVALUATION FOR ADE7816
EVAL-ADE7878EBZ BOARD EVAL FOR ADE7878
EVAL-ADE7880EBZ BOARD EVAL FOR ADE7880
EVAL-ADE7953EBZ BOARD EVAL FOR ADE7953
EVAL-ADF4002EBZ1 BOARD EVAL FOR ADF4002
EVAL-ADG788EBZ BOARD EVALUATION FOR ADG788
相关代理商/技术参数
EVAL-ADE7762EBZ 功能描述:BOARD EVALUATION FOR ADE7762 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081
EVAL-ADE7763EB 制造商:Analog Devices 功能描述:EVALUATION BOARD DOCUMENTATION ADE7763 ENERGY METERING IC
EVAL-ADE7763ZEB 功能描述:BOARD EVALUATION FOR ADE7763 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源
EVAL-ADE7816EBZ 功能描述:BOARD EVALUATION FOR ADE7816 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源
EVAL-ADE7854EBZ 制造商:Analog Devices 功能描述:EVALUATION BOARDS - Boxed Product (Development Kits)
EVAL-ADE7858EBZ 制造商:AD 制造商全称:Analog Devices 功能描述:Poly Phase Multifunction Energy Metering IC with per Phase Active and Reactive Powers
EVAL-ADE7878EBZ 功能描述:BOARD EVAL FOR ADE7878 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口，收发器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板
EVAL-ADE7880EBZ 功能描述:BOARD EVAL FOR ADE7880 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板