AD8555 Analog Devices, AD8555 Datasheet - Page 8

• Manufacturer Part Number: AD8555
• Description: Zero-Drift, Single-Supply, Sensor Signal Amplifier with Digitally Programmable Gain and Offset
• Manufacturer: Analog Devices

AD8555
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 5. Pin Configuration
Pin No.
1
2
3
4
5
6
7
8
N/A
N/A
N/A
SOIC
Mnemonic
VDD
FILT/DIGOUT
DIGIN
VNEG
VPOS
VCLAMP
VOUT
VSS
N/A
N/A
N/A
FILT/DIGOUT
Figure 2. 8-Lead SOIC (Not Drawn to Scale)
VNEG
DIGIN
VDD
1
2
3
4
(Not to Scale)
Pin No.
N/A
2
4
6
8
10
12
N/A
13, 14
15, 16
1, 3, 5, 7, 9, 11
AD8555
TOP VIEW
8
7
6
5
LFCSP
VSS
VOUT
VCLAMP
VPOS
Mnemonic
N/A
FILTDIGOUT
DIGIN
VNEG
VPOS
VCLAMP
VOUT
N/A
DVSS, AVSS
DVDD, AVDD
NC
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Description
Positive Supply Voltage.
Unbuffered Amplifier Output In Series with a Resistor RF. Adding a capacitor
between FILT and VDD or VSS implements a low-pass filtering function. In
read mode, this pin functions as a digital output.
Digital Input.
Negative Amplifier Input (Inverting Input).
Positive Amplifier Input (Noninverting Input).
Set Clamp Voltage at Output.
Buffered Amplifier Output. Buffered version of the signal at the FILT/DIGOUT
pin. In read mode, VOUT is a buffered digital output.
Negative Supply Voltage.
Negative Supply Voltage.
Positive Supply Voltage.
Do Not Connect.
FILT/DIGOUT
Figure 3. 16-Lead LFCSP (Not Drawn to Scale)
DIGIN
NC
NC
1
2
3
4
NC = NO CONNECT
AD8555
TOP VIEW
PIN 1
INDICATOR
12
11
10
9
VOUT
NC
VCLAMP
NC