AD7538 Analog Devices, AD7538 Datasheet - Page 7
![no-image](/images/manufacturer_photos/0/0/56/analog_devices_sml.jpg)
AD7538
Manufacturer Part Number
AD7538
Description
LC2MOS Microprocessor-Compatible 14-Bit DAC
Manufacturer
Analog Devices
Datasheet
1.AD7538.pdf
(16 pages)
Specifications of AD7538
Resolution (bits)
14bit
Dac Update Rate
667kSPS
Dac Settling Time
1.5µs
Max Pos Supply (v)
+15.75V
Single-supply
No
Dac Type
Current Out
Dac Input Format
Par
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7538BJN
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7538BRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD7538JNZ
Manufacturer:
AD
Quantity:
1 145
Part Number:
AD7538JRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7538KN
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD7538KNZ
Manufacturer:
AD
Quantity:
2 145
Part Number:
AD7538KRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Description
Pin No.
1
2
3
4
5
6 to 19
20
21
22
23
24
1
X = don’t care.
Mnemonic
V
R
I
AGND
DGND
DB13 to DB0
LDAC
CS
WR
V
V
OUT
REF
FB
DD
SS
Description
Voltage Reference.
Feedback Resistor. Used to close the loop around an external op amp.
Current Output Terminal.
Analog Ground
Digital Ground.
Data Inputs. Bit DB13 (MSB) to Bit DB0 (LSB).
Chip Select Input. Active low.
Asynchronous Load DAC Input. Active low.
Write Input. Active low.
CS
0
1
0
1
X
+12 V to +15 V Supply Input.
Bias pin for high temperature low leakage configuration. To implement low leakage system, the pin should be
at a negative voltage. See Figure 6 and Figure 8 for recommended circuitry.
1
X
LDAC
1
0
0
1
1
(MSB) DB13
AGND
DGND
DB12
DB10
DB11
V
I
DB9
DB8
DB7
R
OUT
REF
Figure 3. Pin Configuration
FB
Rev. B | Page 7 of 16
10
11
12
1
2
3
4
5
6
7
8
9
WR
0
X
0
X
1
1
1
(Not to Scale)
AD7538
TOP VIEW
24
23
22
20
19
18
17
16
15
14
13
21
V
V
WR
CS
LDAC
DB0 (LSB)
DB1
DB2
DB3
DB4
DB5
DB6
SS
DD
Operation
Load input register.
Load DAC register from input register.
Input and DAC registers are transparent.
No operation.
No operation.
AD7538