ADL5303 View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

ADL5303

160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter

Analog Devices 

Data Sheet

ADL5303

SPECIFICATIONS

VPS = 5 V, GND, ACOM = 0 V, TA = 25°C, unless otherwise noted.

Table 1.

Parameter

INPUT INTERFACE

Specified Current Range

Test Conditions/Comments

Pin 3, INPT; Pin 2 and Pin 4, VSUM

Flows toward Pin 3

Input Node Voltage

Temperature Drift

Input Guard Offset Voltage

PHOTODIODE BIAS2

Minimum Value

Transresistance

LOGARITHMIC OUTPUT

Slope

Intercept

Law Conformance Error

Maximum Output Voltage

Minimum Output Voltage

Output Resistance

REFERENCE OUTPUT

Voltage WRT Ground

Output Resistance

OUTPUT BUFFER

Input Offset Voltage

Input Bias Current

Incremental Input Resistance

Output Range

Output Resistance

Wideband Noise3

Small Signal Bandwidth3

Slew Rate

POWER-DOWN INPUT

Logic Level, High State

Logic Level, Low State

POWER SUPPLY

Supply Voltage

Quiescent Current

In Disabled State

Internally preset; may be altered

−40°C < TA < +85°C

VOFS = VIN – VSUM

Established between VPDB and INPT

IPD = 100 pA

Pin 8, VLOG

Laser trimmed at 25°C

0°C < TA < 70°C

Laser trimmed at 25°C

0°C < TA < 70°C

10 nA < IPD < 1 mA, peak error

1 nA < IPD < 1 mA, peak error

Laser trimmed at 25°C

Pin 6, VREF

Laser trimmed at 25°C

−40°C < TA < +85°C

Pin 9, BFIN; Pin 13, BFNG; Pin 11, VOUT

Flowing out of Pin 9 or Pin 13

RL = 1 kΩ to ground

IPD > 1 μA (see the Typical Performance Characteristics section)

IPD > 1 μA (see the Typical Performance Characteristics section)

0.2 V to 4.8 V output swing

Pin 16, PWDN

−40°C < TA < +85°C, 2.7 V < VPS < 5.5 V

−40°C < TA < +85°C, 2.7 V < VPS < 5.5 V

Pin 10 and Pin 12, VPS2 and VPS1; Pin 14 and 15, GND

Min1 Typ

Max1 Unit

100

0.46 0.5

0.04

−20

pA

10 mA

0.54 V

mV/°C

+20 mV

70 100

200

mV

mV/mA

195 200

193

60 100

35

0.05

0.1

1.6

0.1

4.95 5

205 mV/dec

207 mV/dec

140 pA

175 pA

0.25 dB

0.7 dB

V

V

5.05 kΩ

1.98 2

1.92

2

2.02 V

2.08 V

Ω

−20

+20 mV

0.4

μA

35

MΩ

VPS − 0.1

V

0.5

Ω

1

μV/√Hz

10

MHz

15

V/μs

2

V

1

V

3.0 5

4.5

60

5.5 V

5.6 mA

μA

1 Minimum and maximum specified limits on parameters are guaranteed but not tested and are six sigma values.

2 This bias is internally arranged to track the input voltage at INPT; it is not specified relative to ground.

3 Output noise and incremental bandwidth are functions of input current; see the Typical Performance Characteristics section.

Rev. 0 | Page 3 of 24

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