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iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
y inar im prel
Rev A1, Page 1/7 APPLICATIONS o o o o o o o o o Measuring amplifiers Instrumentation amplifiers Signal conditioners Encoder applications Audio applications High-impedance buffers A/D and D/A converters Battery operated devices GND-sensing applications
FEATURES o o o o o o o o o o o o o o o Ultra low offset (< 1 V) and offset drift Very low load dependent offset shift Built-in offset measurement for each OPAMP 5 V single supply Low supply current, typ. 350 A/OPAMP Unity gain stability Input common mode range down to 0 V 1 mA rail-to-rail output Very low 1/f noise 140 dB open loop gain 130 dB common mode rejection ratio 135 dB power supply rejection ratio 2.5 V/s slew rate 3.5 MHz gain-bandwidth product Tight matching of bandwidth and slew rate among all 4 OPAMPs o Short circuit proof outputs o Option: iC-HQL (< 10 V Offset)
PACKAGES
TSSOP14
BLOCK DIAGRAM
O1 1 IN1 2 IP1 3 VDD 4 IP2 5 IN2 6 O2 7 -+ 2 +- 3 -+ 1 +- 4
14 O4 13 IN4 12 IP4
iC-HQ
11 GND 10 IP3 9 IN3 8 O3
Copyright (c) 2007 iC-Haus
http://www.ichaus.com
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
y inar im prel
Rev A1, Page 2/7
DESCRIPTION The iC-HQ contains four precision OPAMPs, operated from a common 5 V supply. The offset of less than 1 V allows operation with a very high gain. The continuous offset cancellation principle results in ultra low offset temperature drift as well as exceptional suppression of the 1/f noise below 1 kHz. The validation of the specified offset voltage of each OPAMP is performed with built-in test circuitry as part of functional testing and quality assurance. All parameters influencing precision, like open loop gain, power supply rejection ratio, common mode rejection ratio and load rejection are extremely high and add to the offset voltage only in the sub-V 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 advantageous in battery operated devices. The input common mode range includes GND. The rail-to-rail outputs are capable of 1 mA and are unlimited shortcircuit 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) PIN FUNCTIONS No. Name Function 1 2 3 4 5 6 7 8 9 10 11 12 13 14 O1 IN1 IP1 VDD IP2 IN2 O2 O3 IN3 IP3 GND IP4 IN4 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
O1 1 IN1 2 IP1 3 VDD 4 IP2 5 IN2 6 O2 7 -+ 2 +- 3 1 -+ 4 +-
14 O4 13 IN4 12 IP4
iC-HQ
11 GND 10 IP3 9 IN3 8 O3
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
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Rev A1, Page 3/7
ABSOLUTE MAXIMUM RATINGS
Beyond these values damage may occur; device operation is not guaranteed. Item No. Symbol Parameter Supply Voltage Current in VDD Voltage at IPx, INx Current in IPx, INx Voltage at Ox Current in Ox Input Difference Voltage Susceptibility to ESD at all pins Storage Temperature Range Operating Junction Temperature V(IPx) - V(INx) HBM, 100 pF discharged through 1.5 k -40 -40 Referenced to GND, V(Ox) < VDD + 0.5 V Conditions Min. -0.5 -10 -0.5 -5 -0.5 -30 -6 Max. 6 80 VDD + 0.5 5 6 30 6 1 150 150 V mA V mA V mA V kV C C Unit
G001 VDD G002 I(VDD) G003 V() G004 I() G005 V() G006 I() G007 VDiff() G008 Vd() G009 Ts G010 Tj
THERMAL DATA
Operation Conditions: VDD = 5 V 10 % Item No. T01 T02 Symbol Ta Rthja Parameter Operating Ambient Temperature Range Thermal Resistance Chip/Ambient SMD assembly, no additional cooling areas Conditions Min. -40 Typ. Max. 125 140 C K/W Unit
All voltages are referenced to ground unless otherwise stated. All currents into the device pins are positive; all currents out of the device pins are negative.
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
y inar im prel
Rev A1, Page 4/7
ELECTRICAL CHARACTERISTICS
Operation Conditions: VDD = 5 V 10 %, Tj = -40...125 C, unless otherwise noted Item No. 001 002 003 004 005 006 007 008 009 010 Symbol Parameter Conditions Min. VDD I(VDD) Vc(hi) Vc(lo) Vc(hi) Vc(lo) CMRR PSRR AV0 LRR Permissible Supply Voltage Supply Current in VDD Clamp Voltage hi at Ox Clamp Voltage lo at Ox Clamp Voltage hi IPx, INx Clamp Voltage lo IPx, INx Common Mode Rejection Ratio Power Supply Rejection Ratio Open Loop Gain RL = 1 k Offset Shift vs. Power Dissipation Vos at Pv(O1...4) = 1 mW V()cm = 1.5 V, closed loop operation; iC-HQ Tj = -40...27 C iC-HQ Tj = -40...125 C iC-HQL Tj = -40...125 C Total iC, all 4 OPAMPs without load VDD = 0 V, I() = 10 mA VDD = 0 V, I() = -10 mA VDD = 0 V, I() = 1 mA VDD = 0 V, I() = -1 mA Vos /Vcm bei Vcm = 3.5 V 4.5 1.2 0.3 -1.5 0.3 -1.5 125 125 130 -0.3 130 135 140 0 0.3 1.5 Typ. Max. 5.5 2 1.5 -0.3 1.8 -0.3 V V dB dB dB V V mA V Unit
Total Device
Inputs IN1...4, IP1...4 101 Vos Offset Voltage
-1 -1 -10 -0.01
0 0
1 1.6 10 0.01 400 400 VDD - 1.1
V V V V/C pA pA V
102 103 104 105
dVos /dT Ib() Ios () Vcm ()
Offset Voltage Drift Input Current I(IPx), I(INx) Input Offset Current Input Voltage Range
5 -400 -0.1
Outputs O1...4 201 202 203 204 205 206 301 302 303 304 305 306 307 V()hi V()lo Vs()hi Vs()lo Isc()hi Isc()lo SR GBP tset14 tset10 ton Vnoise en Output Voltage hi at Ox Output Voltage lo at Ox Saturation Voltage hi at Ox Saturation Voltage lo at Ox Short Circuit Current from Ox Short Circuit Current in Ox Slew Rate at Ox Gain bandwith product Settling time 14 Bit Settling time 10 Bit Start-up time Noise voltage Noise density Referenced to the input up to 1 Hz f = 3.5 kHz...3.5 MHz f = 2...10 kHz f = 100 Hz...5 kHz f = 1...100 Hz VDD = 5 V, RL = 100 k vs. GND RL = 100 k vs. VDD Vs()hi = VDD - V(Ox), I() = -1.2 mA I() = 1.2 mA Short circuit Ox to GND Short circuit Ox to VDD RL = 10 k, Av = -1, CL = 15 pF RL = 10 k, CL = 15 pF 1 V step, Av 100, 14 Bit 1 V step, Av 100, 10 Bit -30 1.5 1.75 4.95 4.987 11 250 125 -12 3.4 2.5 3.5 350 150 100 600 38 70 134 160 500 300 200 30 600 250 -5 8 3.6 V mV mV mV mA mA V/s MHz s s s nVSS nV/Hz nV/Hz nV/Hz nV/ Hz
Dynamic Parameters
Projected values by sample characterization.
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
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Rev A1, Page 5/7
ELECTRICAL CHARACTERISTICS: Diagrams
Figure 1: Noise spectra at Av = 100
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
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Rev A1, Page 6/7
APPLICATIONS INFORMATION To preserve the offset specification of a precision device like the iC-HQ, the soldering points of both the iC and the external circuitry must not be exposed to different temperatures. Such sensitive devices must not be positioned near heat sources. Temperature differences at metallic junctions cause contact electrification which appears like offset voltage. In the worst case, this contact voltage may even exceed the OPAMP's intrinsic offset by a wide margin. Under no circumstances should the temperature behaviour of such a module (designed for 1 V offset) be tested using e.g. a hot air blower. Even measurements conducted in a climatic test cabinet require a steady, constant temperature. The offset specification of the iC-HQ is - due to the offset cancellation principle - only valid for closed loop operation. Therefore, the comparator mode requires a feedback to maintain its precision. A signal, which drives the OPAMP out of its control range for a short time, e.g. a steep input transition, in a follower configuration, is tolerable and will show the desired output response with high slew rate. In an open loop configuration, the continuous offset cancellation does not work.
This specification is for a newly developed product. iC-Haus therefore reserves the right to change or update, without notice, any information contained herein, design and specification; and to discontinue or limit production or distribution of any product versions. Please contact iC-Haus to ascertain the current data. Copying - even as an excerpt - is only permitted with iC-Haus approval in writing and precise reference to source. iC-Haus does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or areas of applications of the product. iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.
iC-HQ
HIGH-PERFORMANCE QUAD OPAMP
y inar im prel
Rev A1, Page 7/7
ORDERING INFORMATION
Type iC-HQ (1 V) iC-HQL (10 V)
Package TSSOP14 TSSOP14
Order Designation iC-HQ TSSOP14 iC-HQL TSSOP14
For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (61 35) 92 92-0 Fax: +49 (61 35) 92 92-192 Web: http://www.ichaus.com E-Mail: sales@ichaus.com
Appointed local distributors: http://www.ichaus.de/support_distributors.php

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