AD977ABRZ Datasheet, PDF (5/24 Pages) Analog Devices – 16-Bit, 100 kSPS/200 kSPS BiCMOS A/D Converter

AD977/AD977A
ABSOLUTE MAXIMUM RATINGS¹
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 Dissipation²
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
SOIC and DIP
SSOP
R1_IN 1
20 V_DIG
AGND1 2
19 V_ANA
R2_IN 3
18 PWRD
R3_IN 4
CAP 5
AD977 ^{17 BUSY}
AD977A 16 CS
REF
6
TOP VIEW
(Not to Scale)
15
R/C
AGND2 7
14 TAG
SB/BTC 8
13 DATA
EXT/INT 9
12 DATACLK
DGND 10
11 SYNC
R1_IN 1
AGND1 2
28 V_DIG
27 V_ANA
R2_IN 3
26 PWRD
R3_IN 4
25 BUSY
NC 5
24 CS
CAP 6 _AD977 23 NC
REF 7 AD977A 22 NC
NC
8
TOP VIEW
(Not to Scale)
21
R/C
AGND2 9
20 NC
NC 10
19 TAG
NC 11
18 NC
SB/BTC 12
17 DATA
EXT/INT 13
16 DATACLK
DGND 14
15 SYNC
NC = NO CONNECT
1.6mA I_OL
TO OUTPUT
PIN
C_L
100pF
500␮A I_OH
1.4V
Figure 1. Load Circuit for Digital Interface Timing
ORDERING GUIDE
Model
Temperature
Range
Throughput
Rate
AD977AN
AD977BN
AD977CN
AD977AAN
AD977ABN
AD977ACN
AD977AR
AD977BR
AD977CR
AD977AAR
AD977ABR
AD977ACR
AD977ARS
AD977BRS
AD977CRS
AD977AARS
AD977ABRS
AD977ACRS
–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
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
*N = 20-lead 300 mil plastic DIP; R = 20-lead SOIC; RS = 28-lead SSOP.
Max INL
± 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
± 3.0 LSB
± 2.0 LSB
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.
Min S/(N+D)
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
Package
Options*
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
WARNING!
ESD SENSITIVE DEVICE
REV. D
–5–