MAX4004 Maxim, MAX4004 Datasheet

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MAX4004

Manufacturer Part Number
MAX4004
Description
The MAX4004/MAX4006 precision, high-side, current monitors are specifically designed for monitoring photodiode current in fiber applications
Manufacturer
Maxim
Datasheet

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The MAX4004/MAX4006 precision, high-side, current
monitors are specifically designed for monitoring photo-
diode current in fiber applications. They offer a connec-
tion point for the reference current and a monitor output
that produces a signal proportional to the reference
current. The monitor output of the MAX4004 is a current
proportional to the reference current. The monitor out-
put of the MAX4006 is a voltage proportional to the ref-
erence current. The current monitors have six decades
of dynamic range and monitor reference current of
250nA to 2.5mA with better than 5% accuracy. The
photodiode current can be monitored from 10nA to
10mA with reduced accuracy.
The MAX4004/MAX4006 accept a +2.7V to +22V supply
voltage, suitable for PIN photodiode applications. (For
higher voltage applications, refer to the MAX4007/
MAX4008 data sheet.) Internal current limiting (20mA,
typ) protects the device against short-circuit-to-ground or
excessive current conditions. A clamp diode protects the
monitor output from overvoltage. Additionally, these
devices feature thermal shutdown if the die temperature
reaches +150°C.
The MAX4004/MAX4006 are available in tiny, space-
saving 6-pin SOT23 packages, and operate over the
extended temperature range of -40°C to +85°C.
19-2742; Rev 2; 2/06
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.
MAX4004EUT-T
MAX4006EUT-T
PART
Photodiode Current-Monitoring Systems
Portable Instrumentation
Medical Instrumentation
Laboratory Instrumentation
Consumer Electronics
Current-to-Voltage Conversion
Level Translation
High-Accuracy, High-Side Current Monitors
PIN-PACKAGE
________________________________________________________________ Maxim Integrated Products
6 SOT23-6
6 SOT23-6
General Description
Selector Guide
RESISTOR
INTERNAL
None
10kΩ
Applications
ACCURACY
TYPICAL
5%
1%
♦ Wide Reference Current Dynamic Range
♦ Current (MAX4004) or Voltage (MAX4006) Monitor
♦ Reference Current-Limit Protection (20mA, typ)
♦ Voltage Clamp Protects Subsequent Output
♦ +2.7V to +22V Wide Voltage Range Operation
♦ 6-Pin SOT23 Packages
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
MAX4004EUT-T
MAX4006EUT-T
Output
Circuitry
TOP VIEW
Guaranteed 250nA to 2.5mA with 5%
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
MAX4004
MAX4006
SOT23
Pin Configuration
in SOT23
TOP MARK
6
5
4
ABNN
ABNL
BIAS
N.C.
REF
Features
CODE
U6S-3
U6S-3
PKG
1

Related parts for MAX4004

MAX4004 Summary of contents

Page 1

... They offer a connec- tion point for the reference current and a monitor output that produces a signal proportional to the reference current. The monitor output of the MAX4004 is a current proportional to the reference current. The monitor out- put of the MAX4006 is a voltage proportional to the ref- erence current ...

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° (MAX4004), CLAMP = Open -40°C to +85°C. Typical values are CONDITIONS Inferred from power-supply rejection test I ...

Page 3

... OU T /∆V Power-Supply Rejection BIAS Ratio (PSRR) ( ∆ /∆V BIAS Power-Up Settling Time t S Note 1: All devices are 100% tested at room temperature (T _______________________________________________________________________________________ = 0V (MAX4004), CLAMP = Open, T OUT CONDITIONS 22V CLAMP I = 250nA REF I = 2.5mA REF I = 10mA 12V REF BIAS ...

Page 4

... REF V BIAS 1 0 250nA REF 0.01 10m -40 - TEMPERATURE (°C) GAIN ERROR vs. TEMPERATURE 10nA BIAS REF I = 250nA REF I = 2.5µA REF I = 250µA REF I = 2.5A REF I = 5mA REF -40 - TEMPERATURE (°C) TRANSIENT RESPONSE (V = 5V) BIAS MAX4004/6 toc07 400ns/div = 5V 85 ...

Page 5

High-Accuracy, High-Side Current Monitors (T = +25°C, unless otherwise noted.) A STARTUP DELAY (V = 5V, I BIAS REF CH1 0V CH2 0V 40ms/div R = 16.8MΩ REF R1 = 118MΩ 1.67MΩ TEST CH1: 2V/div CH2: 10mV/div STARTUP ...

Page 6

... A SHORT-CIRCUIT RESPONSE (V = 22V) BIAS T = +120° CH1 0A 10ms/div CH1 10mA/div BIAS A: REF SHORTS TO GND B: CURRENT LIMIT ACTIVE C: THERMAL SHUTDOWN PIN MAX4004 MAX4006 — — _______________________________________________________________________________________ Typical Operating Characteristics (continued) vs. REFERENCE CURRENT 1. ...

Page 7

... The MAX4004/MAX4006 are versatile current monitors intended for monitoring DC photodiode current in fiber applications (see the Functional Diagram). The MAX4004 output is a current that is exactly one-tenth of the reference current. The MAX4006 outputs a voltage that is proportional to the reference current with a tran- simpedance gain of 1V/mA achieved by a factory- trimmed, internal 10kΩ ...

Page 8

... DC measurements are required. Determining the required filtering components is straightforward, as the MAX4004 exhibits a very high output impedance (>5MΩ), while the MAX4006 exhibits an output resis- tance of 10kΩ. In some applications where pilot tones are used to iden- tify specific fiber channels, higher bandwidths are desired at OUT to detect these tones ...

Page 9

... High-Accuracy, High-Side Current Monitors 2.2µH +2.7V TO +22V 0.22µF 0.22µF PIN PHOTODIODE HIGH-SPEED DATA PATH _______________________________________________________________________________________ Typical Operating Circuit BIAS CURRENT MONITOR 10x 1x CLAMP CURRENT OUT CLAMP REF MAX4004 GND TO LIMITING TIA AMPLIFIER TRANSISTOR COUNT: 195 PROCESS: BiCMOS in SOT23 +5V +5V ADC 10kΩ 10nF Chip Information 9 ...

Page 10

... For the latest package outline information www.maxim-ic.com/packages.) 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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