AD7837BR Analog Devices Inc, AD7837BR Datasheet - Page 12

• Manufacturer Part Number: AD7837BR
• Description: IC DAC 12BIT DUAL MULT 24-SOIC
• Manufacturer: Analog Devices Inc

Specifications of AD7837BR

• Rohs Status: RoHS non-compliant
• Settling Time: 4µs
• Number Of Bits: 12
• Data Interface: Parallel
• Number Of Converters: 2
• Voltage Supply Source: Dual ±
• Power Dissipation (max): 210mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)

AD7837/AD7847
SEATING
1. LEAD NO. 1 IDENTIFIED BY A DOT OR NOTCH.
2. PLASTIC LEADS WILL EITHER BE SOLDER DIPPED OR TIN LEAD PLATED.
PLANE
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
PIN 1
0.016 (0.41)
0.02 (0.5)
24
1
24-Lead Plastic DIP (N-24)
1.228 (31.19)
1.226 (31.14)
0.11 (2.79)
0.09 (2.28)
0.07 (1.78)
0.05 (1.27)
13
12
AD7837–6502/6809 Interface
Figure 25 shows an interface between the AD7837 and the 6502
or 6809 microprocessor. For the 6502 microprocessor, the φ2
clock is used to generate the WR, while for the 6809 the E sig-
nal is used.
0.01 (0.254)
0.006 (0.15)
0.261
(6.61
PIN 1
0.130 (3.30)
0.128 (3.25)
6502/6809
1. LEAD NO. 1 IDENTIFIED BY A DOT.
2. SOIC LEADS WILL EITHER BE TIN PLATED OR SOLDER DIPPED
24
1
0.001
0.03)
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS.
2 OR E
(1.27)
0.05
R/W
A15
15°
A0
D7
D0
0.32 (8.128)
0°
0.30 (7.62)
0.608 (15.45)
0.596 (15.13)
Dimensions shown in inches and (mm).
0.011 (0.28)
0.009 (0.23)
ADDITIONAL PINS OMITTED FOR CLARITY
OUTLINE DIMENSIONS
0.019 (0.49)
0.014 (0.35)
24-Lead SOIC (R-24)
ADDRESS BUS
SEATING
PLANE
EN
0.096 (2.44)
0.089 (2.26)
ADDRESS
DECODE
13
12
DATA BUS
0.291 (7.39)
0.299 (7.6)
0.225 (5.715)
0.013 (0.32)
0.009 (0.23)
0.125 (3.175)
0.414 (10.52)
0.398 (10.10)
MAX
PIN 1
MIN
1. LEAD NO. 1 IDENTIFIED BY A DOT OR NOTCH.
2. CERDIP LEADS WILL EITHER BE TIN PLATED OR SOLDER DIPPED.
0.021 (0.533)
0.015 (0.381)
IN ACCORDANCE WITH MIL-M-38510 REQUIREMENTS
6
0
TYP
0.03 (0.76)
0.02 (0.51)
24
CS
LDAC
WR
DB7
DB0
1
AD7837
1.290 (32.77) MAX
A0 A1
0.042 (1.067)
0.018 (0.457)
0.110 (2.794)
0.090 (2.286)
24-Lead Cerdip (Q-24)
TYP
0.065 (1.651)
0.055 (1.397)
13
12
0.070 (1.778)
0.020 (0.508)
0.295
(7.493)
MAX
SEATING
PLANE
15°
0.320 (8.128)
0.290 (7.366)
0°
0.012 (0.305)
0.008 (0.203)
TYP
0.180
(4.572)
MAX