ADL5306 Analog Devices, Inc., ADL5306 Datasheet - Page 5

• Manufacturer Part Number: ADL5306
• Description: 60 Db Range 100 Na To 100 Ua Low Cost Logarithmic Converter
• Manufacturer: Analog Devices, Inc.

PIN CONFIGURATION AND PIN FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4
5
6, 7
8
9
10
11
12
13–16
Mnemonic
NC
VREF
IREF
INPT
VSUM
VNEG
VPOS
VLOG
BFIN
SCAL
VOUT
COMM
Function
N/A
Reference Output Voltage of 2.5 V.
Accepts (Sinks) Reference Current I
Accepts (Sinks) Photodiode Current I
into INPT.
Guard Pin. Used to shield the INPT current line and for optional adjustment of the INPT and IREF node potential.
Optional Negative Supply, V
Positive Supply, ( V
Output of the Logarithmic Front End.
Buffer Amplifier Noninverting Input.
Buffer Amplifier Inverting Input.
Buffer Output.
Analog Ground.
P
– V
Figure 2. 16-Lead Leadframe Chip Scale Package (LFCSP)
N
VREF
IREF
INPT
) ≤ 11 V.
NC
N
. This pin is usually grounded; for details of usage, see the Applications section.
1
2
3
4
COMM
VSUM
16
REF
5
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PD
.
. Usually connected to photodiode anode such that photocurrent flows
COMM
VNEG
ADL5306
15
6
COMM
VNEG
14
7
COMM
VPOS
13
8
12
11
10
9
03727-0-002
VOUT
SCAL
BFIN
VLOG
ADL5306