MAX4007 Maxim, MAX4007 Datasheet

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MAX4007

Manufacturer Part Number
MAX4007
Description
The MAX4007/MAX4008 precision, high-side, high-voltage current monitors are specifically designed for monitoring photodiode current in fiber applications
Manufacturer
Maxim
Datasheet

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The MAX4007/MAX4008 precision, high-side, high-volt-
age current monitors are specifically designed for mon-
itoring photodiode current in fiber applications. They
offer a connection point for the reference current and a
monitor output that produces a signal proportional to
the reference current. The monitor output of the
MAX4007 is a current proportional to the reference cur-
rent. The monitor output of the MAX4008 is a voltage
proportional to the reference current. The current moni-
tors have six decades of dynamic range and monitor
reference currents of 250nA to 2.5mA with better than
5% accuracy. The photodiode current can be moni-
tored from 10nA to 10mA with reduced accuracy.
The MAX4007/MAX4008 accept a supply voltage of
+2.7V to +76V, suitable for APD or PIN photodiode appli-
cations. Internal current limiting (20mA, typ) protects the
devices against short circuit to ground. A clamp diode
protects the monitor output from overvoltage. Additionally,
these devices feature thermal shutdown if the die temper-
ature reaches +150°C.
The MAX4007/MAX4008 are available in tiny, space-
saving 6-pin SOT23 packages, and operate over the
extended temperature range of -40°C to +85°C.
19-2743; Rev 3; 4/07
Typical Operating Circuit appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MAX4007EUT-T
MAX4008EUT-T
PART
Photodiode Current-Monitoring Systems
Portable Instrumentation
Medical Instrumentation
Laboratory Instrumentation
Consumer Electronics
Current-to-Voltage Conversion
Level Translation
PIN-
PACKAGE
6 SOT23-6
6 SOT23-6
________________________________________________________________ Maxim Integrated Products
General Description
INTERNAL
RESISTOR
None
10kΩ
Selector Guide
Applications
ACCURACY (%)
High-Accuracy, 76V, High-Side
TYPICAL
5
1
Current Monitors in SOT23
♦ Wide Reference Current Dynamic Range
♦ Current (MAX4007) or Voltage (MAX4008) Monitor
♦ Reference Current-Limit Protection (20mA, typ)
♦ Voltage Clamp Protects Subsequent Output
♦ +2.7V to +76V Wide Voltage Range Operation
♦ 6-Pin SOT23 Packages
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
MAX4007EUT-T
MAX4008EUT-T
Outputs
Circuitry
TOP VIEW
Guaranteed 250nA to 2.5mA with 5% Monitor
Accuracy
Extended 10nA to 10mA with 10% Monitor
Accuracy
PART
CLAMP
GND
OUT
PIN-PACKAGE
6 SOT23-6
6 SOT23-6
1
2
3
Ordering Information
MAX4007
MAX4008
SOT23
Pin Configuration
TOP MARK
6
5
4
ABNM
ABNO
BIAS
N.C.
REF
Features
CODE
U6S-3
U6S-3
PKG
1

Related parts for MAX4007

MAX4007 Summary of contents

Page 1

... The monitor output of the MAX4007 is a current proportional to the reference cur- rent. The monitor output of the MAX4008 is a voltage proportional to the reference current. The current moni- tors have six decades of dynamic range and monitor reference currents of 250nA to 2 ...

Page 2

... Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C + 0.6V) Storage Temperature Range .............................-65°C to +150°C CLAMP Lead Temperature (soldering, 10s) .................................+300° (MAX4007), CLAMP = open -40°C to +85°C. Typical values are CONDITIONS Inferred from power-supply rejection test I ...

Page 3

... Power-Supply Rejection Ratio (PSRR) ( Δ /ΔV BIAS Power-Up Settling Time t S Note 1: All devices are 100% tested at room temperature (T _______________________________________________________________________________________ High-Accuracy, 76V, High-Side Current Monitors in SOT23 = 0V (MAX4007), CLAMP = open, T OUT CONDITIONS 76V CLAMP I = 250nA REF I = 2.5mA REF I = 10mA 12V ...

Page 4

... REF -0 25μA REF I = 2.5mA -1.0 REF I = 5mA -1.2 REF -1.4 2.0 20.5 39.0 57.5 76.0 V (V) BIAS STARTUP DELAY (V = 40V 2.5mA) BIAS REF MAX4007/8 toc09 CH1 V BIAS CH1 BIAS 0V D.U.T. REF OUT R1 CH2 CH2 R REF 13pF R 0V TEST 20ms/div R = 15.8kΩ REF R1 = 0Ω 140kΩ TEST CH1: 10V/div CH2: 10V/div ...

Page 5

... A: REF SHORTS TO GND B: CURRENT LIMIT ACTIVE C: THERMAL SHUTDOWN D: POST COOL-DOWN RETRY VOLTAGE DROP vs. REFERENCE CURRENT V = 2.7V BIAS -40° +25° +85° +100°C A 1μ 10μ 100μ 1m 10m REFERENCE CURRENT (A) MAX4007/8 toc12 ...

Page 6

... The corresponding monitor outputs produce 25nA to 0.25mA (MAX4007) and 0.25mV to 2.5V (MAX4008). When the reference currents are extended to the broader range of 10nA to 10mA, an accuracy of less than 10% is maintained. Internal current limiting (20mA, ...

Page 7

... Additional voltage margin can be created if a negative supply is used in place of a ground connection, as long as the overall voltage drop experienced by the MAX4007/MAX4008 is less than or equal to 76V. For this type of application, the MAX4007 is suggested so the output can be referenced to “true” ground and not the negative supply. The MAX4007’ ...

Page 8

... Current Monitors in SOT23 2.2μH +2.7V TO +76V 0.22μF 0.22μF PIN PHOTODIODE 8 _______________________________________________________________________________________ BIAS CURRENT MONITOR 10x 1x CLAMP CURRENT CLAMP REF MAX4007 GND APD TIA HIGH-SPEED DATA PATH TRANSISTOR COUNT: 195 PROCESS: BiCMOS Typical Operating Circuit +5V +5V OUT ADC 10kΩ 10nF TO LIMITING AMPLIFIER Chip Information ...

Page 9

... For the latest package outline information www.maxim-ic.com/packages.) _______________________________________________________________________________________ High-Accuracy, 76V, High-Side Current Monitors in SOT23 Package Information PACKAGE OUTLINE, SOT 6L BODY 1 21-0058 ...

Page 10

... Revision History Pages changed at Rev Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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