REV.
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ADN8830
Thermoelectric Cooler Controller
FEATURES
High Efficiency
Small Size: 5 mm 5 mm LFCSP
Low Noise: <0.5% TEC Current Ripple
Long-Term Temperature Stability: 0.01C
Temperature Lock Indication
Temperature Monitoring Output
Oscillator Synchronization with an External Signal
Clock Phase Adjustment for Multiple Controllers
Programmable Switching Frequency up to 1 MHz
Thermistor Failure Alarm
Maximum TEC Voltage Programmability
APPLICATIONS
Thermoelectric Cooler (TEC) Temperature Control
Resistive Heating Element Control
Temperature Stabilization Substrate (TSS) Control
FUNCTIONAL BLOCK DIAGRAM
PID COMPENSATION
NETWORK
TEMPERATURE
MEASUREMENT
AMPLIFIER
PWM
CONTROLLER
FROM
THERMISTOR
TEMPERATURE
SET
INPUT
VO LTAG E
REFERENCE
V
REF
OSCILLATOR
FREQUENCY/PHASE
CONTROL
P-CHANNEL
(UPPER MOSFET)
N-CHANNEL
MOSFET
DRIVERS
P-CHANNEL
(LOWER MOSFET)
N-CHANNEL
GENERAL DESCRIPTION
The ADN8830 is a monolithic controller that drives a thermo-
electric cooler (TEC) to stabilize the temperature of a laser diode
or a passive component used in telecommunications equipment.
This device relies on a negative temperature coefficient (NTC)
thermistor to sense the temperature of the object attached to the
TEC. The target temperature is set with an analog input voltage
either from a DAC or an external resistor divider.
The loop is stabilized by a PID compensation amplifier with
high stability and low noise. The compensation network can be
adjusted by the user to optimize temperature settling time. The
component values for this network can be calculated based on
the thermal transfer function of the laser diode or obtained
from the lookup table given in the Application Notes section.
Voltage outputs are provided to monitor both the temperature of
the object and the voltage across the TEC. A voltage reference
of 2.5 V is also provided.
2012
D
781/461-3113
ADN8830* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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DOCUMENTATION
Application Notes
AN-705: ADN8830-EVAL TEC控制器说明
Data Sheet
ADN8830: Thermoelectric Cooler Controller Data Sheet
TOOLS AND SIMULATIONS
ADN8830 SPICE Macro-model
REFERENCE MATERIALS
Technical Articles
Designing a High Performance TEC Controller
Mixed Signal ICs Lend Flexibility to EDFA Control
Applications
DESIGN RESOURCES
ADN8830 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
View all ADN8830 EngineerZone Discussions.
SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
DOCUMENT FEEDBACK
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REV. –2–
ADN8830–SPECIFICATIONS
(@ V
DD
= 3.3 V to 5.0 V, V
GND
= 0 V, T
A
= 25C, T
SET
= 25C, using typical application
configuration as shown in Figure 1, unless otherwise noted.)
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE STABILITY
Long-Term Stability Using 10 kΩ thermistor with
= –4.4% at 25°C 0.01 °C
PWM OUTPUT DRIVERS
Output Transition Time t
R
, t
F
C
L
= 3,300 pF 20 ns
Nonoverlapping Clock Delay 50 65 ns
Output Resistance R
O
(N1, P1) I
L
= 50 mA 6 Ω
Output Voltage Swing OUT A V
LIM
= 0 V 0 V
DD
V
Output Voltage Ripple OUT A f
CLK
= 1 MHz 0.2 %
Output Current Ripple I
TEC
f
CLK
= 1 MHz 0.2 %
LINEAR OUTPUT AMPLIFIER
Output Resistance R
O, P2
I
OUT
= 2 mA 85 Ω
R
O, N2
I
OUT
= 2 mA 178 Ω
Output Voltage Swing OUT B 0 V
DD
V
POWER SUPPLY
Power Supply Voltage V
DD
3.0 5.5 V
Power Supply Rejection Ratio PSRR V
DD
= 3.3 V to 5 V, V
TEC
= 0 V 80 92 dB
–40°C T
A
+85°C60 dB
Supply Current I
SY
PWM not switching 8 12 mA
–40°C T
A
+85°C15mA
Shutdown Current I
SD
Pin 10 = 0 V 5 μA
Soft-Start Charging Current I
SS
15 μA
Undervoltage Lockout V
OLOCK
Low-to-high threshold 2.0 2.7 V
ERROR AMPLIFIER
Input Offset Voltage V
OS
V
CM
= 1.5 V 50 250 μV
Gain A
V, IN
20 V/V
Input Voltage Range V
CM
0.2 2.0 V
Common-Mode Rejection Ratio CMRR 0.2 V < V
CM
< 2.0 V 58 68 dB
–40°C T
A
+85°C55 dB
Open-Loop Input Impedance R
IN
1GΩ
Gain-Bandwidth Product GBW 2 MHz
REFERENCE VOLTAGE
Reference Voltage V
REF
I
REF
< 2 mA 2.37 2.47 2.57 V
OSCILLATOR
Synchronization Range f
CLK
Pin 25 connected to external clock 200 1,000 kHz
Oscillator Frequency f
CLK
Pin 24 = V
DD
; (R = 150 kΩ; 800 1,000 1,250 kHz
Pin 25 = GND)
LOGIC CONTROL*
Logic Low Input Threshold 0.2 V
Logic High Input Threshold 3 V
Logic Low Output Level 0.2 V
Logic High Output Threshold V
DD
– 0.2 V
*Logic inputs meet typical CMOS I/O conditions for source/sink current (~1 μA).
Specifications subject to change without notice.
D

ADN8830ACPZ-REEL7

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Laser Drivers HIGH PRECISION/EFFICIENCY TEC CONTROLLER
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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