ADC71JG Burr-Brown Corporation, ADC71JG Datasheet - Page 8

• Manufacturer Part Number: ADC71JG
• Description: 16-bit Analog-to-digital Converter
• Manufacturer: Burr-Brown Corporation

OUTPUT DRIVE
Normally all ADC71 logic outputs will drive two standard
TTL loads; however, if long digital lines must be driver,
external logic buffers are recommended.
HEAT DISSIPATION
The ADC71 dissipates approximately 0.6W (typical) and the
packages have a case-to-ambient thermal resistance (
25 C/W. For operation above 85 C,
by a heat sink or by forced air over the surface of the
package. See Figure 10 for
the converter is mounted on a PC card, improved thermal
contact with the copper ground plane under the case can be
achieved using a silicone heat sink compound. On a 0.062"
thick PC card with a 16 square in (min) area, this techniques
will allow operation to 85 C.
®
ADC71
CA
requirement above 85 C. If
CA
should be lowered
CA
) of
8
TABLE III. Short-Cycle Connections and Specifications for
FIGURE 10.
RESOLUTION (Bits)
Connect Pin 32 to
Maximum Conversion
Speed ( s)
Maximum Nonlinearity
at 25 C (% of FSR)
NOTES: (1) Max conversion time to maintain specified nonlinearity error.
(2) BH and KH models only.
25
10
0
(1)
12- to 14-Bit Resolutions.
CA
60
Requirement Above 85 C.
0.003
70
Open
16
57
Ambient Temperature (°C)
(2)
80
0.003
Pin 15
90
14
50
(2)
100
Pin 14
0.006
46.5
13
110
Pin 13
0.006
125
12
43