MAX9504B Maxim, MAX9504B Datasheet

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MAX9504B

Manufacturer Part Number
MAX9504B
Description
The MAX9504A/MAX9504B 3V/5V, ground-sensing amplifiers with a fixed gain of 6dB provide high output current while consuming only 10nA of current in shutdown mode
Manufacturer
Maxim
Datasheet
The MAX9504A/MAX9504B 3V/5V, ground-sensing
amplifiers with a fixed gain of 6dB provide high output
current while consuming only 10nA of current in shut-
down mode. The MAX9504A/MAX9504B are ideal for
amplifying DC-coupled video inputs from current digi-
tal-to-analog converters (DACs). The output can drive
two DC-coupled 150Ω back-terminated video loads in
portable media players, security cameras, and automo-
tive video applications. The MAX9504B features an
internal 160mV input offset to prevent output sync tip
clipping when the input signal is close to ground.
The MAX9504A/MAX9504B have -3dB large-signal
bandwidth of 42MHz and -3dB small-signal bandwidth
of 47MHz.
The MAX9504A/MAX9504B operate from a single +2.7V
to +5.5V supply and consume only 5mA of supply cur-
rent. The low-power shutdown mode reduces supply
current to 10nA, making the MAX9504A/MAX9504B ideal
for low-voltage, battery-powered video applications.
The MAX9504A/MAX9504B are available in tiny 6-pin
µDFN (2mm x 2mm) and 6-pin SOT23 packages, and
are specified over the -40°C to +85°C extended tem-
perature range.
19-3750; Rev 0; 7/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin Configurations continued at end of data sheet.
TOP VIEW
Car Navigation Systems
Security Cameras
Portable Media Players
Low-Power Video Applications
Y/C-to-CVBS Mixer
________________________________________________________________ Maxim Integrated Products
V
FB
6
1
CC
MAX9504A
MAX9504B
General Description
µDFN
SHDN
Pin Configurations
GND
5
2
OUT
IN
3
4
Applications
3V/5V, 6dB Video Amplifiers with
High Output-Current Capability
♦ DC-Coupled Input/Output
♦ Drives Two DC-Coupled Video Loads
♦ Direct Connection to Ground-Referenced DAC
♦ 42MHz Large-Signal Bandwidth
♦ 47MHz Small-Signal Bandwidth
♦ Internal 160mV Input Offset (MAX9504B)
♦ Single-Supply Operation from +2.7V to +5.5V
♦ 10nA Shutdown Supply Current
♦ Small µDFN (2mm x 2mm) and SOT23 Packages
Note: All devices specified over the -40°C to +85°C operating
range.
+Denotes lead-free package.
MAX9504AELT-T
MAX9504AEUT+T 6 SOT23-6
MAX9504BELT-T
MAX9504BEUT+
PART
IN
160mV OFFSET
MAX9504B
ONLY
MAX9504A
MAX9504B
PIN-
PACKAGE
6 µDFN-6
6 µDFN-6
6 SOT23-6
1.2kΩ
Ordering Information
580Ω
GND
V
CC
L622-1
L622-1
CODE
U65-3
U65-3
PKG
Block Diagram
2.3kΩ
780Ω
OFFSET
(mV)
Features
160
160
SHDN
OUT
FB
0
0
MARK
ABWC
ABWD
TOP
AAK
AAJ
1

Related parts for MAX9504B

MAX9504B Summary of contents

Page 1

... The MAX9504A/MAX9504B operate from a single +2.7V to +5.5V supply and consume only 5mA of supply cur- rent. The low-power shutdown mode reduces supply current to 10nA, making the MAX9504A/MAX9504B ideal for low-voltage, battery-powered video applications. The MAX9504A/MAX9504B are available in tiny 6-pin µDFN (2mm x 2mm) and 6-pin SOT23 packages, and are specified over the -40° ...

Page 2

... 3.0V, CC (Note 2), 0 < V < 1.10V IN MAX9504B V = 4.5V < V < 1.75V IN MAX9504A 2.7V < V < 5.5V CC MAX9504B Sourcing 20Ω to GND L Sinking 20Ω OUT shorted GND CC SHDN = SHDN = 0V SHDN = -40°C to +85°C. Typical values CC A MIN ...

Page 3

... OUT P 100mV OUT P OUT P step OUT step OUT MAX9504A f = 100kHz MAX9504B f = 5MHz NTSC NTSC 250ns, bar time is 18µs, the beginning 2.5% and the ending 2.5% of the bar time are ignored 2T = 250ns 2T = 250ns, bar time is 18µs, the beginning 2 ...

Page 4

... OUT P 0 100 FREQUENCY (MHz) LARGE-SIGNAL GAIN FLATNESS vs. FREQUENCY 0 OUT P-P 0 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 0.01 0 100 FREQUENCY (MHz) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY -10 -20 -30 -40 -50 MAX9504B -60 -70 MAX9504A -80 -90 0.001 0.01 0 FREQUENCY (MHz) ...

Page 5

... TEMPERATURE (° MAX9504 toc15 -0 -0.2 25mV/div V OUT -0.2 50mV/div -0 +25°C, unless otherwise noted MAX9504B INPUT OFFSET VOLTAGE vs. TEMPERATURE 0.19 0. 0. 0.15 0.14 -40 - TEMPERATURE (°C) LARGE-SIGNAL STEP RESPONSE MAX9504 toc14 V 500mV/div V 1V/div 10ns/div DIFFERENTIAL GAIN AND PHASE ...

Page 6

... +25°C, unless otherwise noted OUT RESPONSE TO NTC-7 TEST SIGNAL (MAX9504B) MAX9504 toc18 V IN 500mV/div V OUT 1V/div 10µs/div OUT RESPONSE TO A FIELD SQUARE WAVE (MAX9504B) MAX9504 toc20 500mV/div V OUT 1V/div 2ms/div Pin Description . CC ...

Page 7

... R2 ONLY GND The MAX9504A/MAX9504B amplify DC-coupled video signals with a gain of +2V/V (+6dB). The MAX9504B features a 160mV input offset voltage (V a video signal input range to ground without clipping the output sync tip. The MAX9504B output voltage is the sum of the input voltage and the input offset voltage gained factor of 2 ...

Page 8

... Figure 2. 2nd-Order Butterworth LPF with MAX9504 8 _______________________________________________________________________________________ 320mV result, the MAX9504B output stage always operates in the linear mode. Even if the input signal is at ground, the MAX9504B output is at 320mV. At the output of a video current DAC, the blank level of the chroma signal is usually between 500mV to 650mV ...

Page 9

RECONSTRUCTION LPF VIDEO CURRENT DAC C1 R1 120pF 150Ω Figure 3. 3rd-Order Butterworth LPF with MAX9504 2nd-Order Butterworth Lowpass Filter Realization Table 1 shows the normalized 2nd-order Butterworth LPF component values at 1 rad/s with a source/load impedance of ...

Page 10

... AC short at the color subcarrier fre- quency of 3.58MHz for NTSC or 4.43MHz for PAL. This circuit relies upon the feature that the MAX9504A/ MAX9504B can drive two loads at the same time. Cn3 (F) Ln1 (H) 0.06 1 ...

Page 11

... RECONSTRUCTION LPF 6.8pF CHROMA 4.7µH VIDEO CURRENT DAC 120pF 150Ω Figure 7. Y/C-to-Composite Mixer and Driver Circuit ______________________________________________________________________________________ 3V/5V, 6dB Video Amplifiers with High Output-Current Capability MAX9504B 120pF 150Ω SHDN GND MAX9504A 120pF 150Ω SHDN GND 0.1µ ...

Page 12

... Figure 8). For V ≥ 4.5V, C5 and C6 are 22µF CC capacitors. Layout and Power-Supply Bypassing The MAX9504A/MAX9504B operate from a single 2.7V to 5.5V supply. Bypass the supply with a 0.1µF capaci- tor as close to V possible. Maxim recommends using CC 3-POLE RECONSTRUCTION LPF ...

Page 13

... MAX9504A GND 2 5 MAX9504B SOT23-6 ______________________________________________________________________________________ 3V/5V, 6dB Video Amplifiers with High Output-Current Capability 2.7V TO 5.5V MAX9504A MAX9504B 160mV OFFSET MAX9504B 120pF 150Ω ONLY 580Ω 1.2kΩ PROCESS: BiCMOS FB SHDN V CC Typical Operating Circuit V CC 0.1µ SHDN Z = 75Ω 0 75Ω ...

Page 14

... Video Amplifiers with High Output-Current Capability (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information ...

Page 15

... For the latest package outline information www.maxim-ic.com/packages.) D XXXX XXXX XXXX SAMPLE PIN 1 INDEX AREA MARKING 7 A1 -DRAWING NOT TO SCALE- ______________________________________________________________________________________ 3V/5V, 6dB Video Amplifiers with High Output-Current Capability ...

Page 16

... BSC -DRAWING NOT TO SCALE- Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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