ETC BRICHURE

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