MAX517BCPA+ Maxim Integrated Products, MAX517BCPA+ Datasheet - Page 7

• Manufacturer Part Number: MAX517BCPA+
• Description: IC DAC 2-WIRE SRL 8BIT R-R 8-DIP
• Manufacturer: Maxim Integrated Products

Specifications of MAX517BCPA+

• Settling Time: 6µs
• Number Of Bits: 8
• Data Interface: I²C, Serial
• Number Of Converters: 2
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 842mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Number Of Dac Outputs: 1
• Resolution: 8 bit
• Interface Type: Serial (I2C)
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Maximum Power Dissipation: 727 mW
• Minimum Operating Temperature: 0 C
• Supply Current: 1.5 mA
• Voltage Reference: External
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 1. MAX517/MAX519 Functional Diagram
______________________________________________________________Pin Description
SCL
SDA
MAX517
( ) ARE FOR MAX519
AD0
—
—
—
—
—
1
2
3
4
5
6
7
8
REGISTER
DECODE
LATCH 0
LATCH 1
AD1
INPUT
INPUT
SHIFT
8-BIT
(AD2)
(AD3)
_______________________________________________________________________________________
START/STOP
COMPARATOR
DETECTOR
LATCH 1
LATCH 0
OUTPUT
OUTPUT
ADDRESS
MAX518
PIN
—
—
—
—
—
1
2
3
4
5
6
7
8
V
DD
REF0
DAC0
DAC1
MAX517/MAX519
2, 3, 7, 14
MAX519
(REF1)
MAX519 ONLY
GND
10
11
12
13
15
16
1
4
5
6
8
9
2-Wire Serial 8-Bit DACs with
OUT0
(OUT1)
NAME
OUT0
OUT1
REF1
REF0
GND
SDA
VDD
N.C.
AD3
SCL
AD2
AD1
AD0
The MAX517/MAX518/MAX519 use a simple 2-wire
serial interface requiring only two I/O lines (2-wire bus)
of a standard microprocessor (µP) port. Figure 2 shows
the timing diagram for signals on the 2-wire bus.
Figure 3 shows a typical application. The 2-wire bus can
have several devices (in addition to the MAX517/
MAX518/MAX519) attached. The two bus lines (SDA and
SCL) must be high when the bus is not in use. When in
use, the port bits are toggled to generate the appropriate
signals for SDA and SCL. External pull-up resistors are
not required on these lines. The MAX517/MAX518/
MAX519 can be used in applications where pull-up resis-
tors are required (such as in I
compatibility with existing circuitry.
The MAX517/MAX518/MAX519 are receive-only devices
and must be controlled by a bus master device. They
operate at SCL rates up to 400kHz. A master device
sends information to the devices by transmitting their
address over the bus and then transmitting the desired
information. Each transmission consists of a START
condition, the MAX517/MAX518/MAX519’s programm-
able slave-address, one or more command-byte/out-
put-byte pairs (or a command byte alone, if it is the last
byte in the transmission), and finally, a STOP condition
(Figure 4).
_______________Detailed Description
DAC0 Voltage Output
Ground
Address Input 3; sets IC’s slave address
Serial Clock Input
Serial Data Input
Address Input 2; sets IC’s slave address
Address Input 1; sets IC’s slave address
Address Input 0; sets IC’s slave address
Power Supply, +5V; used as reference for MAX518
Reference Voltage Input for DAC1
Reference Voltage Input for DAC0
DAC1 Voltage Output
No Connect—not internally connected.
Rail-to-Rail Outputs
FUNCTION
2
C systems) to maintain
Serial Interface
7