adl5317 Analog Devices, Inc., adl5317 Datasheet - Page 5

• Manufacturer Part Number: adl5317
• Description: Avalanche Photodiode Bias Controller And Wide Range 5 Na To 5 Ma Current Monitor
• Manufacturer: Analog Devices, Inc.

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 3. Pin Function Descriptions
Pin No.
1
2
3
4, 5
6
7, 9
8
10, 12
11
13 to 16
Mnemonic
FALT
VSET
VPLV
VPHV
VCLH
GARD
VAPD
NC
IPDM
COMM
Description
Open Collector (Active Low) Logic Output. Indicates an overcurrent or overtemperature condition.
APD Bias Voltage Setting Input. Short to VPLV for supply tracking mode.
Low Voltage Supply, 4 V to 6 V.
High Voltage Supply, 10 V to 80 V.
Can be shorted to VPHV for extended linear operating range. No connect for supply tracking mode.
Guard pin tracks VAPD pin and filters setpoint buffer noise (with External Capacitor C
shielding of VAPD trace. Capacitive load only.
APD Bias Voltage Output and Current Input. Sources current only.
Optional shielding of IPDM trace. No connection to die.
Photodiode Monitor Current Output. Sources current only. Current at this node is equal to I
Analog Ground.
VPHV
FALT
VSET
VPLV
1
2
3
4
Figure 2. Pin Configuration
NC = NO CONNECT
Rev. 0 | Page 5 of 16
(Not to Scale)
ADL5317
TOP VIEW
PIN 1
INDICATOR
12 NC
11 IPDM
10 NC
9 GARD
GRD
to COMM). Optional
APD
/5.
ADL5317