AD5445 Analog Devices, AD5445 Datasheet - Page 7

• Manufacturer Part Number: AD5445
• Description: High Bandwidth CMOS 12-Bit Parallel Interface Multiplying D/A Converter
• Manufacturer: Analog Devices

Specifications of AD5445

• Resolution (bits): 12bit
• Dac Update Rate: 20.4MSPS
• Dac Settling Time: 80ns
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

Data Sheet
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 4.
TSSOP
1
2
3
4 to 11
12
13
14
15
16
Not applicable
AD5424
Pin No.
Figure 3.
I
I
OUT
OUT
GND
DB7
DB6
DB5
DB4
DB3
LFCSP
19
20
1
2 to 9
10 to 13
14
15
16
17
18
1
2
Pin Function Descriptions
1
2
3
4
5
6
7
8
AD5424
(Not to Scale)
AD5424
Mnemonic
I
I
GND
DB7 to DB0
NC
CS
R/W
V
V
R
EPAD
Pin Configuration (TSSOP)
OUT
OUT
FB
DD
REF
1
2
16
15
14
13
12
11
10
9
R
V
V
R/W
CS
DB0 (LSB)
DB1
DB2
REF
DD
FB
Description
Ground.
The exposed pad should be connected to ground.
DAC Current Output.
DAC Analog Ground. This pin should normally be tied to the analog ground of the system.
Parallel Data Bits 7 to 0.
No Internal Connection.
Chip Select Input. Active low. Used in conjunction with R/W to load parallel data to the input
latch or to read data from the DAC register. Rising edge of CS loads data.
Read/Write. When low, use in conjunction with CS to load parallel data. When high, use with CS
to read back contents of DAC register.
Positive Power Supply Input. These parts can be operated from a supply of 2.5 V to 5.5 V.
DAC Reference Voltage Input Terminal.
DAC Feedback Resistor Pin. Establish voltage output for the DAC by connecting to external
amplifier output.
Rev. C | Page 7 of 28
Figure 4.
GND
NOTES
1. NC = NO CONNECT.
2. THE EXPOSED PAD MUST BE
DB7
DB6
DB5
DB4
CONNECTED TO GROUND.
1
2
3
4
5
AD5424
AD5424/AD5433/AD5445
20 19 18 17 16
6 7 8 9 10
AD5424
TOP VIEW
Pin Configuration (LFCSP)
PIN 1
INDICATOR
15
14
13
12
11
R/W
CS
NC
NC
NC