IC-HQ Datasheet, PDF (2/7 Pages) IC-Haus GmbH – HIGH-PERFORMANCE QUAD OPAMP

iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
preliminary
Rev A1, Page 2/7
DESCRIPTION
The iC-HQ contains four precision OPAMPs, oper-
ated from a common 5 V supply. The offset of less
than 1 µV allows operation with a very high gain. The
continuous offset cancellation principle results in ul-
tra low offset temperature drift as well as exceptional
suppression of the 1/f noise below 1 kHz. The valida-
tion of the specified offset voltage of each OPAMP is
performed with built-in test circuitry as part of func-
tional testing and quality assurance.
All parameters influencing precision, like open loop
gain, power supply rejection ratio, common mode re-
jection ratio and load rejection are extremely high and
add to the offset voltage only in the sub-µV range.
The 3.5 MHz gain-bandwidth makes this quad
OPAMP ideally suited for signal processing tasks,
where high frequencies have to be processed at a
high gain. Unity gain stability is provided, thus the
OPAMPs can also operate as buffers.
The low supply current of 1.4 mA is particularly ad-
vantageous in battery operated devices. The input
common mode range includes GND. The rail-to-rail
outputs are capable of 1 mA and are unlimited short-
circuit proof.
The input current I(IPx), I(INx) is typically below 5 pA
at room temperature and below 100 pA throughout
the whole temperature range.
PACKAGES TSSOP14 to JEDEC
PIN CONFIGURATION TSSOP14
(top view)
O1 1
IN1 2
IP1 3
VDD 4
IP2 5
IN2 6
O2 7
1
4
−+ +−
iC−HQ
−+ +−
2
3
14 O4
13 IN4
12 IP4
11 GND
10 IP3
9 IN3
8 O3
PIN FUNCTIONS
No. Name Function
1 O1
2 IN1
3 IP1
4 VDD
5 IP2
6 IN2
7 O2
8 O3
9 IN3
10 IP3
11 GND
12 IP4
13 IN4
14 O4
Output OPAMP1
Neg. input OPAMP1
Pos. input OPAMP1
Voltage supply
Pos. input OPAMP2
Neg. input OPAMP2
Output OPAMP2
Output OPAMP3
Neg. input OPAMP3
Pos. input OPAMP3
Ground
Pos. input OPAMP4
Neg. input OPAMP4
Output OPAMP4