12-Bit High Output Current Source
Data Sheet
ADN8810
Rev. B Document Feedback
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FEATURES
High precision 12-bit current source
Low noise
Long term stability
Current output from 0 mA to 300 mA
Output fault indication
Low drift
Programmable maximum current
24-lead 4 mm × 4 mm lead frame chip scale package
3-wire serial interface
APPLICATIONS
Tunable laser current source
Programmable high output current source
Automatic test equipment
FUNCTIONAL BLOCK DIAGRAM
RESET RESET
ENCOM
P
FB
DV
DD
AV
DD PVD
D
5V
5V
3.3V
4.096V
VREF
CS
SERIAL
INTERF
ACE
SCLK
SDI
ADDRESS ADDR0-2
IOUT
R
SN
R
SN
1.
6V
R
SN
1.6V
D1
ADN8810
FAULT
SB
AVSS
DVSS
DGND
SB
FAUL
T
INDICATION
3
03195-0-001
Figure 1.
GENERAL DESCRIPTION
The ADN8810 is a 12-bit current source with an adjustable
full-scale output current of up to 300 mA. The full-scale output
current is set with two external sense resistors. The output
compliance voltage is 2.5 V, even at output currents up to 300 mA.
The device is particularly suited for tunable laser control and
can drive tunable laser front mirror, back mirror, phase, gain,
and amplification sections. A host CPU or microcontroller
controls the operation of the ADN8810 over a 3-wire SPI
interface. The 3-bit address allows up to eight devices to be
independently controlled while attached to the same SPI bus.
The ADN8810 is guaranteed with ±4 LSB INL and ±0.75 LSB
DNL. Noise and digital feedthrough are kept low to ensure low
jitter operation for laser diode applications. Full-scale and
scaled output currents are given in Equation 1 and Equation 2,
respectively.
SN
REF
FS
R
V
I
×
10
(1)
+×
××= 1
.0
15
1
4096 k
R
R
V
Code
I
SN
SN
REF
OUT
(2)
ADN8810* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
DESIGN RESOURCES
ADN8810 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
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ADN8810 Data Sheet
Rev. B | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .......................................................... 1
General Description ......................................................................... 1
Specifications ..................................................................................... 3
Timing Characteristics ..................................................................... 5
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Pin configuration and function descriptions ................................ 7
Terminology ...................................................................................... 8
Typical Performance Characteristics ............................................. 9
Functional Description .................................................................. 11
Setting Full-Scale Output Current ........................................... 11
Reference Voltage Source .......................................................... 11
Power Supplies ............................................................................ 11
Serial Data Interface ................................................................... 11
Standby and Reset Modes ......................................................... 12
Power Dissipation....................................................................... 12
Using Multiple ADN8810 Devices for Additional Output
Current ......................................................................................... 12
Driving Common-Anode Laser Diodes ................................. 13
Printed Circuit Board (PCB) Layout Recommendations ..... 14
Suggested Pad Layout for CP-24 Package ............................... 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 15
REVISION HISTORY
3/16—Rev. A to Rev. B
Changes to Figure 3 and Table 4 ..................................................... 7
Updated Outline Dimensions ....................................................... 15
Changes to Ordering Guide .......................................................... 15
4/09—Rev. 0 to Re v. A
Changes to Table 3 ............................................................................ 6
Changes to Figure 25 ...................................................................... 14
Updated Outline Dimensions ....................................................... 15
Changes to Ordering Guide .......................................................... 15
1/04—Revision 0: Initial Version

ADN8810ACPZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Laser Drivers Prog Precision Current Source
Lifecycle:
New from this manufacturer.
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