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参数资料
| 型号： | MAX2035CCQ+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC AMP VARIABLE GAIN 100-TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 90 |
| 增益： | 39.5dB |
| RF 型： | SONAR |
| 电源电压： | 4.75 V ~ 5.25 V |
| 电流 - 电源： | 192mA ~ 216mA |
| 封装/外壳： | 100-TQFP 裸露焊盘 |
| 包装： | 托盘 |
19-0630; Rev 1; 2/09
Ultrasound Variable-Gain Amplifier
General Description
The MAX2035 8-channel variable-gain amplifier (VGA)
is designed for high linearity, high dynamic range, and
low-noise performance targeting ultrasound imaging
and Doppler applications. Each amplifier features dif-
ferential inputs and outputs and a total gain range of
typically 50dB. In addition, the VGAs offer very low out-
put-referred noise performance suitable for interfacing
with 10-bit ADCs.
The MAX2035 VGA is optimized for less than ±0.5dB
absolute gain error to ensure minimal channel-to-chan-
nel ultrasound beamforming focus error. The device’s
differential outputs are designed to directly drive ultra-
sound ADCs through an external passive anti-aliasing
filter. A switchable clamp is also provided at each ampli-
fier’s outputs to limit the output signals, thereby prevent-
ing ADC overdrive or saturation.
Dynamic performance of the device is optimized to
reduce distortion to support second-harmonic imaging.
The device achieves a second-harmonic distortion
specification of -62dBc at V OUT = 1.5V P-P and f IN =
5MHz, and an ultrasound-specific* two-tone third-order
intermodulation distortion specification of -52dBc at
V OUT = 1.5V P-P and f IN = 5MHz.
The MAX2035 operates from a +5.0V power supply,
consuming only 127mW/channel. The device is avail-
able in a 100-pin TQFP package with an exposed pad.
Electrical performance is guaranteed over a 0°C to
+70°C temperature range.
Features
? 8-Channel Configuration
? High Integration for Ultrasound Imaging
Applications
? Pin Compatible with the MAX2036 Ultrasound
VGA Plus CW Doppler Beamformer
? Maximum Gain, Gain Range, and Output-Referred
Noise Optimized for Interfacing with 10-Bit ADCs
Maximum Gain of 39.5dB
Total Gain Range of 50dB
60nV/ √ Hz Ultra-Low Output-Referred Noise at
5MHz
Pin-for-Pin 12-Bit Compatibility Supported By
MAX2037/MAX2038
? ±0.5dB Absolute Gain Error
? Switchable Output VGA Clamp Eliminating ADC
Overdrive
? Fully Differential VGA Outputs for Direct ADC
Drive
? Variable Gain Range Achieves 50dB Dynamic
Range
? -62dBc HD2 at V OUT = 1.5V P-P and f IN = 5MHz
? Two-Tone Ultrasound-Specific* IMD3 of -52dBc at
V OUT = 1.5V P-P and f IN = 5MHz
? 127mW Consumption per Channel
Ultrasound Imaging
Applications
Sonar
*See the Ultrasound-Specific IMD3 Specification in the
Applications Information section.
Functional Diagram
Ordering Information
VG_CTL+
V CC
V REF
MAX2035
-10.5dB TO +39.5dB
PART
MAX2035CCQ-D
MAX2035CCQ-TD
MAX2035CCQ+D
TEMP RANGE
0 ° C to +70 ° C
0 ° C to +70 ° C
0 ° C to +70 ° C
PIN-PACKAGE
100 TQFP-EP ?
100 TQFP-EP ?
100 TQFP-EP ?
VG_CTL-
VGIN1+
VGA
50 Ω
VG_CLAMP_MODE
VGOUT1+
MAX2035CCQ+TD
? EP = Exposed pad.
0 ° C to +70 ° C
100 TQFP-EP ?
VGIN1-
?
?
?
VGIN8+
VGIN8-
VGA
? ?
? ?
? ?
50 Ω
?
?
?
50 Ω
50 Ω
VGOUT1-
?
?
?
VGOUT8+
VGOUT8-
+Denotes a lead(Pb)-free/RoHS-compliant package.
-Denotes a package containing lead(Pb).
T = Tape and reel.
D = Dry packing.
BIAS
PD
GND
CIRCUITRY
EXT_RES
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2035CCQ+ | 功能描述:仪表放大器 Ultrasound Variable Gain Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| MAX2035CCQ+D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
| MAX2035CCQ+T | 功能描述:仪表放大器 Ultrasound Variable Gain Amplifier RoHS:否 制造商:Texas Instruments 通道数量: 输入补偿电压:150 V 可用增益调整: 最大输入电阻:10 kOhms 共模抑制比（最小值）:88 dB 工作电源电压:2.7 V to 36 V 电源电流:200 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:MSOP-8 封装:Bulk |
| MAX2035CCQ+TD | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
| MAX2035CCQ-D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Ultrasound Variable-Gain Amplifier |
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