AD977ABRS Ver la hoja de datos (PDF) - Analog Devices
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AD977ABRS Datasheet PDF : 24 Pages
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AD977/AD977A–SPECIFICATIONS (Both Specs)
Parameter
Conditions
DIGITAL INPUTS
Logic Levels
VIL
VIH
IIL
IIH
DIGITAL OUTPUTS
Data Format
Data Coding
Pipeline Delay
VOL
VOH
POWER SUPPLIES
Specified Performance
VDIG
VANA
IDIG
IANA
Power Dissipation
PWRD LOW
PWRD HIGH
ISINK = 1.6 mA
ISOURCE = 500 µA
TEMPERATURE RANGE
Specified Performance
TMIN to TMAX
Specifications subject to change without notice.
A, B, C Grades
Min
Typ
Max
–0.3
+0.8
2.0
VDIG + 0.3
± 10
± 10
Serial 16-Bits
Binary Two’s Complement or Straight Binary
Conversion Results Only Available after Completed Conversion
0.4
4
4.75
5
5.25
4.75
5
5.25
4
11
100
50
–40
+85
TIMING SPECIFICATIONS (AD977A: FS = 200 kHz, AD977: FS = 100 kHz, VDIG = VANA = 5 V, –40؇C to +85؇C)
Symbol
AD977A
Min Typ Max
AD977
Min Typ Max
Convert Pulsewidth
R/C, CS to BUSY Delay
BUSY LOW Time
BUSY Delay after End of Conversion
Aperture Delay
Conversion Time
Acquisition Time
Throughput Time
R/C Low to DATACLK Delay
DATACLK Period
DATA Valid Setup Time
DATA Valid Hold Time
EXT. DATACLK Period
EXT. DATACLK HIGH
EXT. DATACLK LOW
R/C, CS to EXT. DATACLK Setup Time
R/C to CS Setup Time
EXT. DATACLK to SYNC Delay
EXT. DATACLK to DATA Valid Delay
CS to EXT. DATACLK Rising Edge Delay
Previous DATA Valid after CS, R/C Low
BUSY to EXT. DATACLK Setup Time
Final EXT. DATACLK to BUSY Rising Edge
TAG Valid Setup Time
TAG Valid Hold Time
t1
t2
t3
t4
t5
t6
t7
t6 + t7
t8
t9
t10
t11
t12
t13
t14
t15
t16
t17
t18
t19
t20
t21
t22
t23
t24
50
50
83
83
4.0
8.0
50
50
40
40
3.8 4.0
7.6 8.0
1.0
2.0
5
10
220
350
220
450
50
100
20
20
66
100
20
20
30
30
20
t12 + 5 20
t12 + 5
10
10
15
66
15
66
25
66
25
66
10
10
3.5
7.5
5
5
1.7
3.5
0
0
20
20
Specifications subject to change without notice.
Unit
V
V
µA
µA
V
V
V
V
mA
mA
mW
µW
°C
Unit
ns
ns
µs
ns
ns
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
µs
ns
ns
–4–
REV. D
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