参数资料
型号: AD7886JD
厂商: Analog Devices Inc
文件页数: 11/16页
文件大小: 0K
描述: IC ADC 12BIT SAMPLING HS 28-CDIP
标准包装: 1
位数: 12
采样率(每秒): 1M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 350mW
电压电源: 双 ±
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 28-CDIP(0.605",15.37mm)
供应商设备封装: 28-CDIP
包装: 管件
输入数目和类型: 2 个单端,单极;2 个单端,双极
AD7886
–4–
REV. B
ORDERING GUIDE
Integral
Temperature
SNR
Nonlinearity
Package
Model1, 2
Range
(dBs)
(LSBs)
Option3
AD7886JD
0
°C to +70°C
65
D-28
AD7886KD
0
°C to +70°C67
±2.0
D-28
AD7886JP
0
°C to +70°C
65
P-28A
2
AD7886KP
0
°C to +70°C67
±2.0
P-28A
2
AD7886BD
–40
°C to +85°C67
±2.0
D-28
AD7886TD
–55
°C to +125°C65
±2.0
D-28
NOTES
1Contact your sales office for availability of AD7886BD, AD7886TD and 1 MHz version.
2Analog Devices reserves the right to ship J-Leaded Ceramic Chip Carrier (JLCCC) in lieu of PLCC packages.
3D = Ceramic DIP; P = Plastic Leaded Chip Carrier.
PIN FUNCTION DESCRIPTION
DIP Pin
Number
Mnemonic
Description
Power Supply
10 & 19
VDD
Positive Power Supply, +5 V
± 5%. Both V
DD pins must be tied together.
15 & 24
VSS
Negative Power Supply, –5 V
± 5%. Both V
SS pins must be tied together.
16 & 23
AGND
Analog Ground. Both AGND pins must be tied together.
5
DGND
Digital Ground.
Analog and Reference Inputs
17 & 18
VIN
Analog Inputs, VIN1 and VIN2. The part can be pin strapped for any one of three analog input ranges;
Range
Pin Strap
Signal Input
0 V to 5 V
Connect VIN2 to VIN1
VIN1 & VIN2
0 V to 10 V
Connect VIN2 to GND
VIN1
±5 V
Connect VIN2 to +5 V
VIN1
20
+5REF
+5 V Reference input. This input is used in conjunction with SUM and VREF inputs to scale an external
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
21
SUM
Summing Point. This input is used in conjunction with +5REF and VREF inputs to scale an external
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
22
VREF
Voltage Reference Input. The AD7886 is specified with VREF = –3.5 V.
Interface and Control
1–4,
DB7–DB4
Three-state data outputs.
6–9,
DB3–DB0
These outputs are controlled by
CS and RD. DB11 is the Most Significant Bit (MSB).
25–28
DB11–DB8
11
BUSY
BUSY Output indicates converter status. BUSY is low during conversion.
12
CS
Chip Select Input. The device is selected when this input is low.
13
RD
Read Input. This active low signal, in conjunction with
CS, is used to enable the output data three-state
drivers.
14
CONVST
Conversion Start Input. This input is used to start conversion.
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