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參數資料
型號: AD7886TD
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
中文描述: 1-CH 12-BIT FLASH METHOD ADC, PARALLEL ACCESS, CDIP28
封裝: SIDE BRAZED, CERAMIC, DIP-28
文件頁數: 4/16頁
文件大?。?/td> 400K
代理商: AD7886TD
AD7886
–4–
REV. B
ORDERING GUIDE
Integral
Nonlinearity
(LSBs)
Temperature
Range
SNR
(dBs)
Package
Option
3
Model
1, 2
AD7886JD
AD7886KD
AD7886JP
AD7886KP
AD7886BD
AD7886TD
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
0
°
C to +70
°
C
–40
°
C to +85
°
C
–55
°
C to +125
°
C
65
67
65
67
67
65
D-28
D-28
P-28A
2
P-28A
2
D-28
D-28
±
2.0
±
2.0
±
2.0
±
2.0
NOTES
1Contact your sales office for availability of AD7886BD, AD7886TD and 1 MHz version.
2
Analog Devices reserves the right to ship J-Leaded Ceramic Chip Carrier (JLCCC) in lieu of PLCC packages.
3
D = Ceramic DIP; P = Plastic Leaded Chip Carrier.
PIN FUNCTION DESCRIPTION
DIP Pin
Number
Mnemonic
Description
Power Supply
10 & 19
15 & 24
16 & 23
5
V
DD
V
SS
AGND
DGND
Positive Power Supply, +5 V
±
5%. Both V
DD
pins must be tied together.
Negative Power Supply, –5 V
±
5%. Both V
SS
pins must be tied together.
Analog Ground. Both AGND pins must be tied together.
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
0 V to 10 V
±
5 V
Connect VIN2 to VIN1
Connect VIN2 to GND
Connect VIN2 to +5 V
VIN1 & VIN2
VIN1
VIN1
20
+5REF
+5 V Reference input. This input is used in conjunction with SUM and V
REF
inputs to scale an external
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
Summing Point. This input is used in conjunction with +5REF and V
REF
inputs to scale an external
+5 V reference to –3.5 V, the required reference for the part (see Figure 2).
Voltage Reference Input. The AD7886 is specified with V
REF
= –3.5 V.
21
SUM
22
V
REF
Interface and Control
1–4,
6–9,
25–28
11
12
13
DB7–DB4
DB3–DB0
DB11–DB8
BUSY
CS
RD
Three-state data outputs.
These outputs are controlled by
CS
and
RD
. DB11 is the Most Significant Bit (MSB).
BUSY
Output indicates converter status.
BUSY
is low during conversion.
Chip Select Input. The device is selected when this input is low.
Read Input. This active low signal, in conjunction with
CS
, is used to enable the output data three-state
drivers.
Conversion Start Input. This input is used to start conversion.
14
CONVST
相關PDF資料
PDF描述
AD7886JD LC2MOS 12-Bit, 750 kHz/1 MHz, Sampling ADC
AD7887 +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC
AD7887AR +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC
AD7887ARM +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC
AD7887BR +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC
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