Rainbow Electronics MAX552 - Manual (Page 12)

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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1997 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
MAX551/MAX552
+3V/+5V, 12-Bit, Serial, Multiplying DACs
in 10-Pin µMAX Package
grounded should be connected directly to a single-
point ground through a separate, low-resistance (less
than 0.2
Ω
) connection. The current at OUT and AGND
varies with input code, creating a code-dependent
error if these terminals are connected to ground (or vir-
tual ground) through a resistive path.
Parasitic coupling of the signal from REF to OUT is an
error source in dynamic applications. This coupling is
normally a function of board layout and pin-to-pin pack-
age capacitance. Minimize digital feedthrough with
guard traces between digital inputs, REF, and OUT
pins.
The MAX551/MAX552 have high-impedance digital
inputs. To minimize noise pick-up, tie them to either
V
DD or GND when they are not in use. As a good prac-
tice, connect active inputs to V DD or GND through high-
value resistors (1M
Ω
) to prevent static charge accumu-
lation if the pins are left floating, such as when a circuit
card is left unconnected.
The CLR input on the µMAX device has an internal pull-
up resistor with a typical value of 125k
Ω
. If the CLR
input is not used, tie it to V DD to minimize supply cur-
rent.
V DD
V
BIAS
V IN
AGND
REF
OUT
GND
MAX551
MAX552
Figure 8. AGND Bias Current _Ordering Information (continued)
___________________Chip Information
TRANSISTOR COUNT: 887
SUBSTRATE CONNECTED TO V DD
PART
MAX552 ACPA
MAX552BCPA
MAX552ACUB 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-
PACKAGE
8 Plastic DIP
8 Plastic DIP
10 µMAX
MAX552BCUB
MAX552AEPA
MAX552BEPA -40°C to +85°C
-40°C to +85°C
0°C to +70°C 10 µMAX
8 Plastic DIP
8 Plastic DIP
MAX552AEUB -40°C to +85°C 10 µMAX
MAX552BEUB -40°C to +85°C 10 µMAX
LINEARITY
(LSB)
±1/2
±1
±1/2
±1
±1/2
±1
±1/2
±1