Analog Devices AD604 - Manual (Page 6)

AD604
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
-DSX^T
+DSX^T
PAO^T
FBK^T
PAI^T
COM^T
COM^T
PAI^T
FBK^T
PAO2 [io
+DSX2 QT
-DSX2 [12
2^VGN1
I^VREF
2^OUT1
2^GND1
2^VPOS
T9 vneg
T8 vneg
T7VPOS
T6 g ND2
i5OUT2
T4VOCM
j3VGN2
Figure 2. Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic Description
1 -DSX1 Channel 1 Negative Signal Input to DSX1.
2 +DSX1 Channel 1 Positive Signal Input to DSX1.
3 PAO1 Channel 1 Preamplifier Output.
4 FBK1 Channel 1 Preamplifier Feedback Pin.
5 PAI1 Channel 1 Preamplifier Positive Input.
6 COM1 Channel 1 Signal Ground. When this pin is connected to positive supply, Preamplifier 1 shuts down.
7 COM2 Channel 2 Sig§ai,Groun4. W^inth^pin is^co^nected to positive supply, Preamplifier 2 shuts dow^
8
9
10 PB.
^
C.com/ADI
Channel 2 PreamplifierOutpui: /
11 +DSX2 Channel 2 Positive Signal Input to DSX2.
12 -DSX2 Channel 2 Negative Signal Input to DSX2.
13 VGN2 Channel 2 Gain Control Input and Power-Down Pin. If this pin is grounded, the device is off; otherwise, positive
voltage increases gain.
14 VOCM Input to this pin defines the common mode of the output at OUT1 and OUT2.
15 OUT2 Channel 2 Signal Output.
16 GND2 Ground.
17 VPOS Positive Supply.
18 VNEG Negative Supply.
19 VNEG Negative Supply.
20 VPOS Positive Supply.
21 GND1 Ground.
22 OUT1 Channel 1 Signal Output.
23 VREF Input to this pin sets gain scaling for both channels to 2.5 V = 20 dB/V and 1.67 V = 30 dB/V.
24 VGN1 Channel 1 Gain Control Input and Power-Down Pin. If this pin is grounded, the device is off; otherwise, positive
voltage increases gain.
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