Integrated Circuits for High Speed Solutions Communications, Video & Imaging summer Broadband Communications Medical Imaging Digital Imaging Communication Basestations Burr-Brown Corporation High Speed Solutions This brochure provides an overview of Burr-Brown’s high-speed product line. Additional product information in the form of data sheets or applications bulletins can be obtained from the Burr-Brown website (www.burr-brown.com). H High Speed With Burr-Brown’s ever expanding SpeedPLUS product line, you can find your complete high-speed signal processing solutions for communications, instrumentation, video and imaging applications. The product line includes high performance analog-to-digital converters plus compatible low cost, high performance operational amplifiers. The current line of A/D converters offers resolutions from 8- to 14-bit and sampling rates from 5 to 80MHz. The operational amplifiers offer the best distortion performance in the industry. For DSL applications, Burr-Brown can provide both analog front ends as well as differential line drivers. For the growing imaging market, these SpeedPLUS product lines address the needs for video signal processing and feature single chip IC solutions for CCD imaging. ® www.burr-brown.com New Product Highlights Available Soon! High Dynamic Range 14-Bit, 65MHz A/D Converter The ADS852 represents a major paradigm shift in product performance for demanding communications, and test instrumentation applications. Giving 100dB of spurious free dynamic range and 75dB signal-to-noise ratio, ADS852 includes a wideband 1GHz track/hold that provides excellent spurious performance up to and beyond Nyquist. The low 0.25ps jitter of the track/hold also leads to excellent SNR performance. The ADS852 can accommodate full-scale input ranges of 2Vp-p, 3Vp-p or 4Vp-p. The ADS852 also offers flexible clocking, accepting either a low level differential sine or square wave signal down to 0.5Vp-p. It is available in a 64-lead LQFP package. A perfect pairing with the ADS852 is the ultra low noise, voltage feedback OPA687 op amp. The OPA687 operates from a dual (±5V) power supply, offers a high SFDR and an output swing of ±3.5V making it an ideal driver for the ADS852 in high performance communications applications. The OPA687 combines a very high gain bandwidth product of 3.2GHz and large signal performance with an ultra-low input voltage noise of only 0.95nV/ Hz, while dissipating only 18mA supply current, making it an ideal amplifier for high performance transimpedance applications as well. The OPA687 is available in SO-8 and SOT23-6 packages. New Low Cost, Very Small 8-Bit, 60-80MHz ADCs The 8-bit, 60MHz ADS830 and the 8-bit, 80MHz ADS831 are high performance pipeline A/D converters with flexible options, allowing their use in a number of applications. They provide an internal or external reference option, accept either single-ended or differential analog input, and offer a programmable input range of 1Vp-p or 2Vp-p. The combination of near ideal SNR of 49dB, low DNL of ±0.35LSB and low power dissipation provide the extra margin needed for demanding video, imaging and communications applications. The ADS830 and ADS831 are pin-for-pin compatible and are available in the narrow 20-lead SSOP package. New Current Feedback Op Amp Family w/Disable The OPA681 (single), OPA2681 (dual) and OPA3681 (triple) are high slew rate, high output power, unity gain stable op amps with an optional disable feature. The disable feature is particularly useful for power savings or implementing simple multiplexing circuits. All three models offer dual (±5V) or single (+5V) supply operation, high slew rate of 2100V/µs, and low input voltage noise. The current feedback design makes the OPA681 family members a perfect choice where gain adjustment or higher gains are required. Recommended resale in USD; FOB USA. www.burr-brown.com SpeedPLUS A/D Converters Product Bits fs (Msps) Power (mW) Vs (V) SNR (dB) SFDR at fIN (dBFS) (MHz) FPBW (MHz) Ref Input Package Price** (1kpcs) ADS852 14 65 650 +5 75 100 at 20 1000 Int/Ext SE or Diff LQFP-64 $39.00 ADS851 14 40 400 +5 75 100 at 20 1000 Int/Ext SE or Diff LQFP-64 $29.00 ADS810 12 100 600 +5 68 95 at 20 1000 Int/Ext SE or Diff TQFP-48 $23.95 ADS807 12 53 324 +5 68 82 at 10 270 Int/Ext SE or Diff SSOP-28 $17.95 ADS805 12 20 300 +5 67 77 at 8 270 Int/Ext SE or Diff SSOP-28, SO-28 $15.35 ADS804 12 10 180 +5 69 80 at 4.8 270 Int/Ext SE or Diff SSOP-28, SO-28 $9.95 ADS803 12 5 116 +5 69 82 at 2 270 Int/Ext SE or Diff SSOP-28, SO-28 $6.95 ADS824 10 70 315 +5 58 68 at 20 300 Int/Ext SE or Diff SSOP-28 $8.80 ADS823 10 60 265 +5 60 74 at 10 300 Int/Ext SE or Diff SSOP-28 $8.45 ADS822 10 40 161 +5 60 66 at 10 300 Int/Ext SE or Diff SSOP-28 $4.90 ADS902 10 30 140 +5 58 58 at 12 100 Ext SE SSOP-28 $3.95 ADS820 10 20 195 +5 60 63 at 10 100 Int Diff SSOP-28, SO-28 $6.36 ADS900 10 20 52 +2.7 50 53 at 10 100 Int SE SSOP-28 $2.75 ADS901 10 20 48 +2.7 54 51 at 9 100 Ext SE SSOP-28 $2.65 ADS831 8 80 265 +5 48 65 at 10 300 Int/Ext SE or Diff SSOP-20 $4.95 ADS830 8 60 180 +5 49 65 at 10 300 Int/Ext SE or Diff SSOP-20 $3.95 ADS931 8 30 63 +2.7 to +5 48 49 at 12 100 Ext SE SSOP-28 $2.15 ADS930 8 30 66 +2.7 to +5 46 51 at 12 100 Int SE SSOP-28 $2.25 Package Price** (1kpcs) SpeedPLUS Video Signal Processing Solutions Bits Sample Rate (Msps) Power (mW) VS (V) SNR (dB) Gain Range (dB) CDS/CIS Ref VSP2000 10 18 160 +2.7 53 0 to 34 Yes/No Int LQFP-48 $5.75 VSP2080 — — 130 +2.7 55 0 to 34 Yes/No Int SSOP-20 $2.23 VSP2101 10 27 170 +2.7 53 0 to 13 Yes/Yes Int LQFP-48 $5.75 (2) Product (1) VSP3000 12 6 350 +5 — 0 to 13 Yes/Yes Int LQFP-48 $5.75 VSP3010 12 12 350(2) +5 — 0 to 13 Yes/Yes Int LQFP-48 $5.75 Package Price** (1kpcs) $12.00 Note: (1) ADC not included. (2) Typ CDS Mode. DSL Analog Front Ends Product Type Data Rate (Kbits/s) max Data Rate (Kbits/s) min Scaleable Data Rate Line Code Power Dissipation (mW) Power Supply (V) VCXO AFE1115 HDSL/MDSL 1168 192 yes 2B1Q 300 +5 Yes SSOP-56 AFE1124 HDSL/MDSL 1168 64 yes 2B1Q 250 +5 No SSOP-28 $9.00 AFE1137 DSL 1000 160 yes 2B1Q 300 +5 No SSOP-56 $14.40 AFE1203 HDSL/MDSL 2320 160 yes 2B1Q 400 +5 No SSOP-48 $14.40 AFE1205 HDSL/MDSL 2320 160 yes 2B1Q 400 +5 No SSOP-48 $14.40 AFE1224 HDSL/MDSL 2320 64 yes 2B1Q 355 +5 No SSOP-28 $14.40 AFE2124 1168 64 yes 2B1Q 250 +5 No SSOP-48 $18.00 SDSL/HDSL (1) Note: (1) Per channel; HDSL is high bit rate DSL; MDSL is medium speed DSL; SDSL is symmetrical DSL. DSL Differential Line Drivers Diff. SR (V/µs) THD(1) (dBc) eni (nV/ Hz) Input VOS (mV) CMRR (dB) PSRR (dB) Gain Error (dB) IQ (mA) VS (V) Package Price** (1kpcs) 230 80 –65 30 5 62 76 ±0.25 11 +5 SO-8, PDIP-8 $2.95 230 100 –71 15 3 46 76 ±0.25 25 +5 SO-8 $2.95 –3dB BW(1) (MHz) IOUT (mA) DRV1100 5 DRV1101 24 Product Note: (1) RL = 15Ω, VO = 6Vp-p. Bold indicates new products, Bold Blue Italics indicates preliminary information **Recommended resale in USD; FOB USA. www.burr-brown.com SpeedPLUS Op Amps Fixed Gain Buffer Amplifiers (G = +2, +1, –1) IQ(6) (mA/Chan) VOR(7) (V) IOUT(8) (mA) eni(9) (nV/ Hz) Package Price** (1kpcs) ±5, 5 6.0 ±3.8 150 2.5 SOT23-5, SO-8, PDIP-8 $1.82 ±5, 5 6.0 (dual) ±3.8 150 2.5 SO-8, SO-14 $2.92 74 ±5, 5 6.0 (triple) ±3.8 150 2.5 SSOP-16, SO-16 $3.85 IQ (mA/Chan) VOR (V) IOUT (mA) eni (nV/ Hz) Package Price** (1kpcs) Product BW(1) (MHz) GNOM(2) SR(3) (V/µs) SFDR(4) (dB) VS(5) (V) OPA682 240 2 2100 74 OPA2682 240 2 2100 74 OPA3682 240 2 2100 Current Feedback Product BW (MHz) GNOM SR (V/µs) SFDR (dB) VS (V) OPA603 160 2 1000 59 ±15, ±5 21 ±10 150 4.2 SO-16, PDIP-8 $4.65 OPA658 680 2 1700 68 ±5 5.0 ±2.7 60 3.2 SOT23-5, SO-8, PDIP-8 $1.49 OPA685 900 2 4200 74 ±5, +5 12.9 ±3.3 60 1.7 SO-8, SOT23-6 $1.89 OPA2658 500 2 1700 68 ±5 5.0 (dual) ±2.7 60 3.2 SO-8, MSOP-8, PDIP-8 $2.39 OPA4658 450 2 1700 66 ±5 5.0 (quad) ±2.7 60 3.3 SO-14, $4.99 OPA681 220 2 2100 74 ±5, +5 6.0 ±3.8 135 2.5 SOT23-6, SO-8, PDIP-8 $1.79 OPA2681 220 2 2100 74 ±5, +5 6.0 (dual) ±3.8 135 2.5 SO-8, SO-14 $2.89 OPA3681 220 2 2100 74 ±5, +5 6.0 (triple) ±3.8 135 2.5 SO-16, SSOP-16 $3.79 VS (V) IQ (mA/Chan) VOR (V) IOUT (mA) eni (nV/ Hz) Package Price** (1kpcs) Voltage Feedback (GMIN = 1) Product BW (MHz) GNOM SR (V/µs) SFDR (dB) OPA620 300 1 250 — +5 21 ±3.0 50 2.3 SO-8, PDIP-8 $7.20 OPA631 75 2 100 42 +5, +3 6 0.06 to 4.80 25 — SO-8, SOT23-5 $1.29 OPA632 75 2 100 42 +5, +3 6 0.06 to 4.80 25 — SO-8, SOT23-6 $1.29 OPA634 150 2 250 63 +5, +3 12 0.05 to 4.80 50 5.6 SO-8, SOT23-5 $1.49 OPA635 150 2 250 63 +5, +3 12 0.05 to 4.80 50 5.6 SO-8, SOT23-6 $1.49 OPA642 450 1 380 95 ±5 22 ±3.0 40 2.7 SOT23-5, SO-8, PDIP-8 $3.75 OPA650 560 1 240 73 ±5 5.1 ±2.7 65 8.4 SOT23-5, SO-8, PDIP-8 $1.29 OPA2650 360 1 240 72 ±5 5.5 (dual) ±2.7 65 8.4 SO-8, MSOP-8, PDIP-8 $1.95 OPA4650 360 OPA655*** 400 OPA671*** 33 1 240 68 ±5 5.8 (quad) ±2.7 65 8.4 SO-14, PDIP-14 $4.99 1 210 90 ±5 25 ±3.0 35 6.0 SO-8, PDIP-8 $9.13 1 107 — ±15, ±5 15 ±10.5 50 10.0 PDIP-8 $4.37 OPA680 2 1800 68 ±5, +5 6.4 ±3.8 135 4.8 SOT23-6, SO-8, PDIP-8 $1.79 220 OPA2680 220 2 1800 68 ±5, +5 6.4 (dual) ±3.8 135 4.8 SO-8, SO-14 $2.89 OPA3680 OPA688* 220 2 1800 68 ±5, +5 6.4 (triple) ±3.8 135 4.8 SSOP-16, SO-16 $3.79 220 2 1800 68 ±5, +5 16 ±3.8 85 4.8 SO-8, PDIP-8 $2.65 SR (V/µs) SFDR (dB) VS (V) IQ (mA/Chan) VOR (V) IOUT (mA) eni (nV/ Hz) Package Price** (1kpcs) Voltage Feedback (GMIN >1) Product BW (MHz) GNOM OPA621 500 2 500 — ±5 26 ±2.7 60 2.3 SO-8, PDIP-8 $7.20 OPA643 300 5 1000 90 ±5 23 ±3.0 40 2.3 SOT23-5, SO-8, PDIP-8 $3.75 OPA651 470 2 300 67 ±5 5.1 ±2.7 65 4.6 SO-8, PDIP-8 $1.95 OPA686 250 10 600 90 ±5 12 ±3.2 60 1.3 SOT23-5, SO-8 $2.89 OPA2686 250 10 600 72 ±5 12 (dual) ±3.2 60 1.4 SO-8 $4.59 OPA687 OPA689* 290 20 1000 90 ±5, +5 18 ±3.3 80 0.85 SOT23-6, SO-8 $3.49 280 6 1600 61 ±5, +5 16 ±3.9 85 4.6 SO-8, PDIP-8 $2.95 Notes: (1) BW refers to small-signal bandwidth. (2) GNOM is the nominal gain for the other specs. (3) SR refers to slew rate. (4) SFDR is the Spurious Free Dynamic Range at f = 5MHz and VO = 2Vp-p. (5) VS is the specified supply voltage(s). (6) IQ is the supply current per channel. (7) VOR is the no load, voltage output range (guaranteed at 25ºC). (8) I OUT refers to the output current (guaranteed at 25ºC). (9) eni is the input voltage noise density. *Voltage Limiting Amplifier. ***FET Input. Bold indicates new products, Bold Blue Italics indicates preliminary information **Recommended resale in USD; FOB USA. www.burr-brown.com Burr-Brown Corporation W Wired Communication Solutions Burr-Brown’s ever expanding product line provides high performance solutions for many DSL and other wired communications systems. DSL Analog Front End Products DSL Analog Front End Burr-Brown offers a number of analog front end (AFE) products for digital subscriber lines (DSL). Each of the analog front ends includes a transmit and a receive channel with all of the active analog circuitry needed to connect a digital signal processor chip to a telephone line transformer. These units also feature scaleable data rates in which all on-chip filters and converters automatically scale with input clock frequency. In addition to the standard products shown below, Burr-Brown has the capability to design and produce new analog front end chips for your volume production requirements. Our “core cell” approach means that we can design new analog front end products using critical circuit blocks which already exist for fast turnaround time with relatively low risk. Fig. 1 AFE1124 Block Diagram See Figure 1. AFE1124 The AFE1124 is an analog front end optimized for HDSL and MDSL applications. It features a serial interface with a very small package and very low power dissipation. It is designed for data rates up to 1.168Mbps. Priced at $9.00 each in 1000s. See Figure 2. Features • 250mW Power Dissipation • Scaleable Data Rate • 28-Pin SSOP AFE 112 4 Fig. 2 AFE1115 Block Diagram AFE1115 The AFE1115 is an analog front end optimized for HDSL and MDSL applications. It includes DSL transmit and receive channels, additional on-board VCXO circuitry, and an 8-bit VCXO control DAC for clock recovery. It is designed for data rates up to 1.168Mbps. Priced at $12.00 each in 1000s. See Figure 3. Features • 300mW Power Dissipation • Scaleable Data Rate • 56-Pin SSOP AFE 111 5 ® ® Recommended resale in USD; FOB USA. Fig. 3 www.burr-brown.com AFE1203 & AFE1205 The AFE1203 and AFE1205 are analog front ends optimized for single pair 2B1Q HDSL and MDSL applications. They have a power control feature which allows the user to reduce power dissipation. Both include DSL transmit and receive channels, and are designed for data rates up to 2.3Mbps. See Figure 4. AFE1203 and AFE1205 Features • 385mW Power Dissipation • User Power Control • Scaleable Data Rate • 48-Pin SSOP AFE1 203 Fig. 4 DRV1100 & DRV1101—Line Drivers Features The DRV1100 is a low power, fixed gain differential line driver designed for very low harmonic distortion at the high power required of DSL line interface standards. The DRV1100 operates from a single +5V supply and can deliver 230mA peak output current and 9.5Vp-p differential output voltage swing. • 5MHz Bandwidth: 6Vp-p into 15Ω (DRV1100) • 10MHz Bandwidth: 6Vp-p into 15Ω (DRV1101) The DRV1101 is a fixed gain differential line driver designed for use as the upstream line driver for single +5V only ADSL G.Lite, and as both upstream and downstream line drivers in CAP ADSL systems. Operating on a single +5V supply, the DRV1101 can supply up to 230mA peak output current. The output voltage can swing up to 9.5Vp-p on a single +5V supply. In ADSL G.Lite applications, DRV1101 can supply up to 10dBm average line power with a crest factor of 5.3. Both are priced at $2.95 each in 1000s. See Figure 5. • Fixed Differential Gain of 3V/V • PDIP-8 and SO-8 (DRV1100) • SO-8 Package (DRV1101) DRV +5V DSL Line Driver and Receiver 110 +5V DRV 1101 Transformer Out+ In+ G = 3V/V In– Out– Patent Pending Fig. 5 GND +12V DSL Line Driver and Receiver +12V 1/2 OPA2681 DSL Line Driver/Receiver Application This application circuit supports DSL applications at the CP (Customer Premises) requiring 10 to 13dBm (crest factor of 5.33 for DMT) on a single +12V supply. The OPA2681 has the right combination of output swing, output current and slew rate at high gains to achieve low distortion at the required power levels. The OPA2680 makes an excellent receiver amplifier because of its low noise, high bandwidth and slew rate performance margins. Where +12V or ±5V supplies are available, and/or lower turns ratios are desired, use the OPA2681/OPA2680. See Figure 6. TX+ Transformer and Hybrid LP TX– FIlter 1/2 OPA2681 +12V DSP 1/2 OPA2680 VREF RX+ BP RX– FIlter 1/2 OPA2680 VREF Recommended resale in USD; FOB USA. Fig. 6 www.burr-brown.com Wireless Communication Solutions Wideband IF Sampling Burr-Brown provides a variety of compatible wideband operational amplifiers and ADCs with the necessary bandwidth and dynamic range for IF sampling. The OPA687 gives in excess of 95dB SFDR at 20MHz and the ADS852 gives in excess of 100dB SFDR. Using this LO ADC for undersampling at the 1st IF stage is also achievable due to the wideband track/hold performance. For instance, the ADS852 track/hold offers a 1GHz bandwidth and a low 0.25ps jitter. See Figure 7. LO BP FIlter BP FIlter LNA ADC PA ADS807 ADS808 ADS851 ADS852 OPA642 OPA643 OPA687 LO RF BP FIlter DSP DAC Fig. 7 OPA643 OPA687 DAC9XX* Baseband Sampling and the OPA642 gives in excess of 90dB while having a low voltage noise of 2.2nV/ Hz, making it compatible with the low noise of the ADS803. See Figure 8. Burr-Brown offers several op amp and ADC combinations for baseband sampling. An example of these parts are the ADS803 and the OPA642. The ADS803 gives 80dB of SFDR at 1MHz LO LP Filter ADC Q LP Filter ADC LO BP FIlter LNA I 90° OPA642 LO PA I LP Filter DAC Q LP Filter DAC LO BP FIlter ADS803 DSP 90° Fig. 8 OPA643 OPA686 DAC9XX* Low Distortion, Low Noise ADC Driver SFDR, this circuit meets the stringent requirements for basestations without the need for dither. Also, the overall gain is 18.5dB with an amplifier noise figure < 6dB. See Figure 9. This OPA687 application circuit delivers the ultimate in low distortion when sampling IF signals. With the differential amplifier delivering 95dB SFDR at 20MHz and the ADC capable of 100dB +5V OPA687 100Ω –5V 845Ω 100Ω +5V 50Ω Source 1:2 39pF 2pF 39pF 2pF 100Ω 845Ω 1:2 BP Filter 200Ω 2Vp-p VCM 806Ω ADS852 65Msps 14-Bit 100Ω Fig. 9 +5V OPA687 –5V *Coming Soon. Call factory for availability www.burr-brown.com Medical Imaging Solutions Ultrasound in their class and power consumption category at a very attractive price. Whether your SNR requirement is 49dB for an 8-bit system, or 68dB for a 12-bit system, we have the parts to meet your needs. Burr-Brown offers a complete line of A/Ds and driver op amps for ultrasound digital beam forming at 8-, 10- and 12-bits of resolution. The A/Ds and op amps give simply the best dynamic range of any A/D See Figure 10. BUF634 or OPA681 Composite Circuit** Timing Generator DAC Power Amp DAC9XX* TX/RX Switch Low Pass Filter Low Noise Preamp TGC Digital Scanning and DSP ADC Buffer OPA680 OPA681 ADS830 ADS823 ADS807 Fig. 10 Gamma Cameras combination of high dynamic performance, low power and low cost make Burr-Brown products the best solution in many medical imaging applications. See Figure 11. For gamma camera applications, Burr-Brown has a complete line of 10-bit A/Ds as well as operational amplifiers for signal conditioning, voltage gain control and current-to-voltage conversion. The Front-End Digitizer Signal Conditioning I/V Amp VGA OPA686 PMT Array 256Ch Buffer ADC OPA680 OPA681 ADS822 ADS823 ADS807 Baseline Monitor MUX *Coming Soon – Call factory for availability. **Contact Burr-Brown applications group for circuit details. Back-End DSP Bus Controller RAM and Processing ADC DAC Gain and Offset Control Display Fig. 11 www.burr-brown.com Video/CCD Imaging Solutions CCD Video Signal Processors CCD Imaging, Striped Color or Monochrome Burr-Brown offers a complete line of imaging signal processors for video and still cameras with line (row) rate clamps, and correlated double samplers for data and reference timed to the CCD signal. Each provides a 0 to +34dB remote gain amplifier, linear in dB, and black level controls for the CDS and inputs. All are complete solutions with internal references. See Figure 12. CCD Correlated Double Sample Log Gain Control 10-Bit A/D DSP Gain Set DC Set VSP2000 – Internal A/D Converter • Analog Gain Control VSP2080 – External A/D Converter • Analog Gain Control VSP2101 – Internal A/D Converter • Digital Gain Control Digital Video Output DC Set Clamp Fig. 12 CCD or CIS Scanners or Cameras 3-Input CCD/CIS Signal Processor with A/D RED Sensor CCD or CIS Sampler GRN Sensor CCD or CIS Sampler BLU Sensor CCD or CIS Sampler 3-to-1 MUX Black and Gain Set VSP3000 provides a complete, three-input imaging signal for CCD or CIS sensors. In CCD mode, it provides line (row) input clamps and correlated double samplers for data and reference timed to the CCD signal. In CIS mode, an input reference and correlated single samplers sample data timed to the CIS signal. Gain range is 0 to 13dB, linear in dB. The A/D’s high resolution allows black level and gain control from DSP. Reference can be internal or external. Programming can be parallel and/or serial. The single A/D design uses only 350mW (CDS mode) and comes in a small, 48-lead LQFP. See Figure 13. Digital Video Output 12-Bit 10MHz A/D Serial Control Output Control Fig. 13 549Ω Ω 549Ω Ω Video Analog-to-Digital Conversion Systems Burr-Brown offers a complete, A/D solution for video. These A/Ds operate on a single +5V supply at low power, come in SSOP packages, and the driver op amps are small and lowest in cost. These op amps provide low distortion and highest video signal to noise. See Figure 14. 24.9Ω Ω Burr-Brown ADS8xx OPA3681A Video In 0 to 1Vp-p 22pF 549Ω Ω 549Ω Ω 549Ω Ω 825Ω Ω REFT 1650Ω Ω Our A/D converters for video range from 8-bit, 30MHz to 14-bit, 65MHz. See SpeedPLUS A/D converters for selections. The SNR numbers in the selection table can be adjusted by 9dB for video applications. Burr-Brown also offers a wide variety of video drivers as shown in SpeedPLUS op amps. Digital Video Output A/D Converter 2Vp-p Differential 24.9Ω Ω OPA3681B 22pF 549Ω Ω 549Ω Ω 549Ω Ω OPA3681C 0.1 549Ω Ω Fig. 14 R Computer G B OPA680 ADS831 OPA680 ADS831 OPA680 ADS831 LCD Displays and Projectors DR The 8-bit 60MHz ADS830 and the 8-bit 80MHz ADS831 offer outstanding differential non-linearity performance with a typical error of only 0.2 LSBs and 7.9 effective bits, making them attractive for RGB to LCD conversion in both VGA and SVGA systems. Along with the triple channel OPA3681, these converters provide a winning combination. See Figure 15. High Resolution LCD Display or Projector Fig. 15 www.burr-brown.com S Burr-Brown Corporation SpeedPLUS Solutions Many of your analog and mixed-signal applications circuits will benefit from the flexibility of Burr-Brown's high speed products. The following circuits illustrate just a few of the diverse applications made possible with the expanding SpeedPLUS product line. Composite Amplifier This circuit is for applications that require a high speed op amp, but need excellent DC precision. The OPA686 provides the high speed functionality, while the OPA27 gives excellent DC precision and low 1/f noise. The OPA130 is an optional integrator that blocks the DC input (below 0.2Hz), leaving <1mV output offset voltage. This circuit could be used as a LNA (Low Noise Amplifier), or as a driver for a diode mixer. See Figure 16. Fig. 16 Optic Receiver Amplifier Signal Processing Burr-Brown offers you outstanding solutions for the transimpedance amplifier portion of photodiode. The OPA655 is a FET-input op amp with 240MHz gain bandwidth product CDIODE and very low input noise (6nV/ Hz). It also features very fast overdrive recovery (20ns). Applications limited by the op amp’s voltage noise will benefit from the OPA686’s voltage noise of 1.3nV/ Hz. The OPA689 has a guaranteed overdrive recovery –VB OPA655 OPA686 OPA689 Fig. 17 time of 2.8ns for those applications that require minimal signal drop-out time. See Figure 17. Wideband Integrator This circuit acts as an integrator that maintains better than 2º phase accuracy over ≥ 5 decades of frequency. This compares very favorably with the standard single op amp integrator using the OPA680, which is accurate over ≥ 1.5 decades of frequency. Also, this circuit maintains this accuracy at higher frequencies (0.5 decades higher). The voltage divider ratio set by the 150Ω and 75.Ω resistors keeps the composite amplifier stable, and the Fig. 18 phase errors low. See Figure 18. ® Recommended resale in USD; FOB USA. C Burr-Brown Corporate Profile Burr-Brown Corporation designs, manufactures, and Burr-Brown’s product strategy is to design innovative, markets a broad line of analog and mixed-signal integrated proprietary products which bring a very high level of circuits used in the processing of real-world electronic functional value to our customers’ applications. There are signals. These products are used in a wide range of markets currently over 1200 products in our portfolio. We produce and applications, including industrial and process control, both standard products which are used in a broad range of telecommunications, test and measurement, medical and applications, and specially developed products optimally scientific instrumentation, medical imaging, digital audio suited for emerging, fast growth, target applications such as and video, personal computing, and multimedia. audio signal processing and broadband communications. Corporate Headquarters International Subsidiary Offices Fast Product Info: (800) 548-6132 France: Le Chesnay (33) 1 39 23 82 82 Telephone: (520) 746-1111 Germany: Filderstadt (49) 711 77 04 0 Bremen (49) 421 25 39 31 Web Address: http: //www.burr-brown.com/ Bonn (49) 2225 91 56 10 Mailing Address: Erlangen (49) 9131 482831 P.O. Box 11400, Tucson, AZ 85734-1400 Frankfurt (49) 6151 9432811 Headquarters: München (49) 89 615 66 21 6730 S. Tucson Blvd., Tucson, AZ 85706-1400 U.S. Regional Sales Offices Italy: Bollate (39) 02 3500141 Japan: Atsugi (81) 04 6248 4695 California: Santa Clara (408) 982-8900 Osaka (81) 06 3053287 Illinois: Bloomington (630) 529-6477 Kanagawa-Pre. (81) 045 476 7870 New Hampshire: Nashua (603) 888-1999 Asia: Singapore (65) 392 9700 New York: Hauppauge (516) 273-5757 Netherlands: 's-Hertogenbosch (31) 73 6121600 Texas: Dallas (972) 783-4555 Switzerland: Zürich (41) 1 439 10 20 United Kingdom: Watford (44) 1923 233837 www.burr-brown.com © 1998 Burr-Brown Corporation LI-526b Printed in U.S.A. June, 1999