Datasheet
AD976/AD976A
–5–
REV. C
ABSOLUTE MAXIMUM RATINGS
1
Analog Inputs
V
IN
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 V
CAP . . . . . . . . . . . . . . . . +V
ANA
+ 0.3 V to AGND2 – 0.3 V
REF . . . . . . . . . . . . . . . . . . . . . Indefinite Short to AGND2
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, RS) . . . –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:
28-Lead PDIP: θ
JA
= 74°C/W; θ
JC
= 24°C/W,
28-Lead SOIC: θ
JA
= 72°C/W; θ
JC
= 23°C/W,
28-Lead SSOP: θ
JA
= 109°C/W; θ
JC
= 39°C/W.
ORDERING GUIDE
Temperature Max Min Throughput Package Package
Model Range INL S/(N+D) Rate Descriptions Options
AD976AN –40°C to +85°C ±3.0 LSB 83 dB 100 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976BN –40°C to +85°C ±2.0 LSB 85 dB 100 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976CN –40°C to +85°C 83 dB 100 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976AAN –40°C to +85°C ±3.0 LSB 83 dB 200 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976ABN –40°C to +85°C ±2.0 LSB 85 dB 200 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976ACN –40°C to +85°C 83 dB 200 kSPS 28-Lead, 300 mil Plastic DIP N-28B
AD976AR –40°C to +85°C ±3.0 LSB 83 dB 100 kSPS 28-Lead Small Outline Package R-28
AD976BR –40°C to +85°C ±2.0 LSB 85 dB 100 kSPS 28-Lead Small Outline Package R-28
AD976CR –40°C to +85°C 83 dB 100 kSPS 28-Lead Small Outline Package R-28
AD976AAR –40°C to +85°C ±3.0 LSB 83 dB 200 kSPS 28-Lead Small Outline Package R-28
AD976ABR –40°C to +85°C ±2.0 LSB 85 dB 200 kSPS 28-Lead Small Outline Package R-28
AD976ACR –40°C to +85°C 83 dB 200 kSPS 28-Lead Small Outline Package R-28
AD976ARS –40°C to +85°C ±3.0 LSB 83 dB 100 kSPS 28-Lead Shrink Small Outline Package RS-28
AD976BRS –40°C to +85°C ±2.0 LSB 85 dB 100 kSPS 28-Lead Shrink Small Outline Package RS-28
AD976CRS –40°C to +85°C 83 dB 100 kSPS 28-Lead Shrink Small Outline Package RS-28
AD976AARS –40°C to +85°C ±3.0 LSB 83 dB 200 kSPS 28-Lead Shrink Small Outline Package RS-28
AD976ABRS –40°C to +85°C ±2.0 LSB 85 dB 200 kSPS 28-Lead Shrink Small Outline Package RS-28
AD976ACRS –40°C to +85°C 83 dB 200 kSPS 28-Lead Shrink Small Outline Package RS-28
PIN CONFIGURATION
DIP, SOIC and SSOP Packages
14
13
12
11
10
9
8
2
3
4
7
6
5
1
TOP VIEW
(Not to Scale)
17
16
15
19
18
20
28
27
26
25
24
23
22
21
AD976
AD976A
V
IN
CS
BUSY
V
ANA
V
DIG
AGND1
REF
CAP
D0 (LSB)
BYTE
R/C
AGND2
D15 (MSB)
D14
D13
D12
D11
D3
D2
D1
D10
D9
D8
DGND
D4
D7
D6
D5
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 AD976/AD976A features 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.
1.6mA I
OL
TO
OUTPUT
PIN
C
L
100pF
500mA
I
OH
+2.1V
Figure 1. Load Circuit for Digital Interface Timing
WARNING!
ESD SENSITIVE DEVICE