AD5530 Analog Devices, AD5530 Datasheet - Page 8

• Manufacturer Part Number: AD5530
• Description: Serial Input, Voltage Output 12-Bit D/A Converter
• Manufacturer: Analog Devices

Specifications of AD5530

• Resolution (bits): 12bit
• Dac Update Rate: 50kSPS
• Dac Settling Time: 20µs
• Max Pos Supply (v): +16.5V
• Single-supply: No
• Dac Type: Voltage Out
• Dac Input Format: Ser,SPI

AD5530/AD5531
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 7. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Mnemonic
REFAGND
REFIN
LDAC
SDIN
SYNC
RBEN
SCLK
SDO
CLR
PD
GND
NC
V
DUTGND
V
V
SS
OUT
DD
Level Sensitive, Active Low Input. A falling edge of CLR resets V
are untouched.
Description
For bipolar ±10 V output range, this pin should be tied to 0 V.
This is the voltage reference input for the DAC. Connect to external 5 V reference for specified bipolar ±10 V output.
Load DAC Logic Input (Active Low). When taken low, the contents of the shift register are transferred to the DAC
register. LDAC can be tied permanently low, enabling the outputs to be updated on the rising edge of SYNC.
Serial Data Input. This device accepts 16-bit words. Data is clocked into the input register on the falling edge of SCLK.
Active Low Control Input. Data is clocked into the shift register on the falling edges of SCLK.
Active Low Readback Enable Function. This function allows the contents of the DAC register to be read. Data
from the DAC register is shifted out on the SDO pin on each rising edge of SCLK.
Clock Input. Data is clocked into the input register on the falling edge of SCLK.
Serial Data Out. This pin is used to clock out the serial data previously written to the input shift register or can be
used in conjunction with RBEN to read back the data from the DAC register. This is an open drain output; it
should be pulled high with an external pull-up resistor. In standalone mode, SDO should be tied to GND or left
high impedance.
This allows the DAC to be put into a power-down state.
Ground Reference.
Do not connect anything to this pin.
Negative Analog Supply Voltage. −12 V ± 10% or −15 V ± 10%, for specified performance.
V
DAC Output.
Positive Analog Supply Voltage. 12 V ± 10% or 15 V ± 10%, for specified performance.
OUT
is referenced to the voltage applied to this pin.
REFAGND
REFIN
SYNC
RBEN
LDAC
SCLK
SDIN
SDO
Figure 4. Pin Configuration
Rev. B | Page 8 of 20
1
2
3
4
5
6
7
8
NC = NO CONNECT
(Not to Scale)
AD5530/
AD5531
TOP VIEW
16
15
14
13
12
11
10
9
V
V
DUTGND
V
NC
GND
PD
CLR
DD
OUT
SS
OUT
to DUTGND. The contents of the registers