HV256FG-G Supertex, HV256FG-G Datasheet - Page 6

• Manufacturer Part Number: HV256FG-G
• Description: Op Amps 32-Ch MEMS Drvr IC
• Manufacturer: Supertex

Specifications of HV256FG-G

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MQFP-100
• Minimum Operating Temperature: - 10 C
• Lead Free Status / RoHS Status: Compliant

RSINK / RSOURCE
The VDD_BYP, VDD_BYP, and VNN_BYP pins are internal, high
impedance current, mirror gate nodes, brought out to mantain stable
opamp biasing currents in noisy power supply environments. 0.1uF/
25V bypass capacitors, added from the VPP_BYP pin to VPP, from
VDD_BYP pin to VDD, and from VNN_BYP to VNN, will force the
Typical Characteristics
600
500
400
300
200
100
0
25k
BYP _ VNN Cap
BYP _ VPP Cap
BYP_ VDD Cap
0.1uF / 25V
0.1uF / 25V
0.1uF / 25V
(V
PP
= 300V, V
I
DD
SINK vs
BYP _ VPP
BYP _ VNN
BYP_ VDD
R
= 6.5V, V
SINK
VDD
150k
VNN
VPP
R
(KΩ)
NN
SINK
●
= 5.5V, T
1235 Bordeaux Drive, Sunnyvale, CA 94089
max
min
A
= 25
O
C)
Set by RSOURCE
To internal biasing
Set by RSINK
250k
6
high impedance gate nodes to follow the fluctuation of power lines.
The expected voltages at the VDD_BYP, and VNN_BYP pins are
typically 1.5 volts from their respectful power supply. The expected
voltage at VPP_BYP is typically 3.0V below V
600
500
400
300
200
100
0
HVOpamp
●
25k
Tel: [phone]
Current limit
HV
Current limit
OUT
(V
PP
0
= 300V, V
I
SOURCE vs
R
DD
●
HVOpamp
SOURCE
= 6.5V, V
www.supertex.com
150k
R
NN
SOURCE
(KΩ)
= 5.5V, T
HV
max
min
A
= 25
PP
OUT
.
O
C)
31
HV256
250k