AD1851/AD1861
ABSOLUTE MAXIMUM RATINGS*
PIN DESCRIPTIONS
V
L
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6.50 V
V
S
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to 6.50 V
–V
S
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –6.50 V to 0 V
Digital Inputs to DGND . . . . . . . . . . . . . . . . . . . –0.3 V to V
L
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
0.3 V
Short Circuit . . . . . . . . . . . . . . . . . Indefinite Short to Ground
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C, 10 sec
Storage Temperature . . . . . . . . . . . . . . . . . . –60°C to +100°C
*Stresses greater than those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and 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.
ORDERING GUIDE
Model
AD1851N
AD1851N-J
AD1851R
AD1851R-J
AD1861N
AD1861N-J
AD1861R
AD1861R-J
Resolution
16 Bits
16 Bits
16 Bits
16 Bits
18 Bits
18 Bits
18 Bits
18 Bits
THD + N
0.008%
0.004%
0.008%
0.004%
0.008%
0.004%
0.008%
0.004%
Package
Option*
N-16
N-16
R-16
R-16
N-16
N-16
R-16
R-16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
–V
S
DGND
V
L
NC
CLK
LE
DATA
NC
V
OUT
R
F
SJ
AGND
I
OUT
MSB ADJ
TRIM
V
S
Analog Negative Power Supply
Logic Ground
Logic Positive Power Supply
No Connection
Clock Input
Latch Enable Input
Serial Data Input
No Internal Connection*
Voltage Output
Feedback Resistor
Summing Junction
Analog Ground
Current Output
MSB Adjustment Terminal
MSB Trimming Potentiometer Terminal
Analog Positive Power Supply
*Pin 8 has no internal connection; -V
L
from AD1856 or AD1860 socket can be
safely applied.
*N = Plastic DIP Package; R = Small Outline (SOIC) Package.
CAUTION
ESD (electrostatic discharge) sensitive device. The digital control inputs are diode protected;
however, permanent damage may occur on unconnected devices subject to high energy electro-
static fields. Unused devices must be stored in conductive foam or shunts. The protective foam
should be discharged to the destination socket before devices are inserted.
WARNING!
ESD SENSITIVE DEVICE
Typical Performance
10
175
150
125
100
75
50
25
0dB
0.001
–30 –20 –10
THD+N – %
1
–60dB
PD – mW
0.1
0.01
–20dB
2
4
6
8
10
12
14
0
10
20
30
40
50
60
70
80
90
CLOCK FREQUENCY – MHz
TEMPERATURE –
°
C
Power Dissipation vs. Clock Frequency
THD vs. Temperature
–4–
REV. A
AD [ ANALOG DEVICES ]
