參數(shù)資料
型號(hào)： AD977ACR
廠商： ANALOG DEVICES INC
元件分類： ADC
英文描述： 16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter
中文描述： 3-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20
封裝： SOIC-20
文件頁數(shù)： 5/24頁
文件大?。?/td> 284K
代理商： AD977ACR
AD977/AD977A
–5–
REV. D
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD977/AD977A feature proprietary ESD protection circuitry, permanent damage
may occur on devices subjected to high-energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS
1
Analog Inputs
R1
IN
, R2
IN
, R3
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
25 V
CAP . . . . . . . . . . . . . . . . .+V
ANA
+ 0.3 V to AGND2 – 0.3 V
REF . . . . . . . . . . . . . . . . . . . . . Indefinite Short to AGND2,
. . . . . . . . . . . . . . . . . . . . . . . . . Momentary Short to V
ANA
Ground Voltage Differences
DGND, AGND1, AGND2 . . . . . . . . . . . . . . . . . . .
±
0.3 V
Supply Voltages
V
ANA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
V
DIG
to V
ANA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
7 V
V
DIG
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Digital Inputs . . . . . . . . . . . . . . . . . . . –0.3 V to V
DIG
+ 0.3 V
Internal Power Dissipation
2
PDIP (N), SOIC (R), SSOP (RS) . . . . . . . . . . . . . 700 mW
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150
°
C
Storage Temperature Range N, R . . . . . . . . –65
°
C to +150
°
C
Lead Temperature Range
(Soldering 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
°
C
NOTES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
2
Specification is for device in free air:
20-Lead PDIP:
θ
JA
= 100
°
C/W,
θ
JC
= 31
°
C/W,
20-Lead SOIC:
θ
JA
= 75
°
C/W,
θ
JC
= 24
°
C/W,
28-Lead SSOP:
θ
JA
= 109
°
C/W,
θ
JC
= 39
°
C/W.
PIN CONFIGURATIONS
SB/BTC
EXT/INT
CS
BUSY
R/C
14
13
12
11
17
16
15
20
19
18
10
9
8
1
2
3
4
7
6
5
TOP VIEW
(Not to Scale)
AD977
AD977A
V
DIG
V
ANA
PWRD
TAG
DATA
DATACLK
SYNC
R1
IN
AGND1
R2
IN
R3
IN
CAP
REF
AGND2
DGND
14
13
12
11
17
16
15
20
19
18
10
9
8
1
2
3
4
7
6
5
TOP VIEW
(Not to Scale)
28
27
26
25
24
23
22
21
AD977
AD977A
NC = NO CONNECT
V
DIG
V
ANA
PWRD
NC
NC
NC
TAG
NC
DATA
DATACLK
SYNC
R1
IN
AGND1
R2
IN
R3
IN
NC
CAP
REF
NC
AGND2
NC
NC
DGND
R/C
CS
BUSY
SB/BTC
EXT/INT
SOIC and DIP SSOP
1.6mA
I
OL
500 A
I
OH
1.4V
C
L
100pF
TO OUTPUT
PIN
Figure 1. Load Circuit for Digital Interface Timing
ORDERING GUIDE
Temperature
Range
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Throughput
Rate
Package
Options
*
Model
Max INL
±
3.0 LSB
±
2.0 LSB
Min S/(N+D)
AD977AN
AD977BN
AD977CN
AD977AAN
AD977ABN
AD977ACN
AD977AR
AD977BR
AD977CR
AD977AAR
AD977ABR
AD977ACR
AD977ARS
AD977BRS
AD977CRS
AD977AARS
AD977ABRS
AD977ACRS
100 kSPS
100 kSPS
100 kSPS
200 kSPS
200 kSPS
200 kSPS
100 kSPS
100 kSPS
100 kSPS
200 kSPS
200 kSPS
200 kSPS
100 kSPS
100 kSPS
100 kSPS
200 kSPS
200 kSPS
200 kSPS
83 dB
85 dB
83 dB
83 dB
85 dB
83 dB
83 dB
85 dB
83 dB
83 dB
85 dB
83 dB
83 dB
85 dB
83 dB
83 dB
85 dB
83 dB
N-20
N-20
N-20
N-20
N-20
N-20
R-20
R-20
R-20
R-20
R-20
R-20
RS-28
RS-28
RS-28
RS-28
RS-28
RS-28
±
3.0 LSB
±
2.0 LSB
±
3.0 LSB
±
2.0 LSB
±
3.0 LSB
±
2.0 LSB
±
3.0 LSB
±
2.0 LSB
±
3.0 LSB
±
2.0 LSB
*
N = 20-lead 300 mil plastic DIP; R = 20-lead SOIC; RS = 28-lead SSOP.
WARNING!
ESD SENSITIVE DEVICE
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