|
MAX2035
Ultrasound Variable-Gain Amplifier
Fully Integrated Octal Ultrasound VGA Delivers 39.5dB of Max Gain, 50dB of Dynamic Gain Range, -69dBc of HD2 Performance, and a Low Output-Referred Noise Level of 60nV/√Hz
|
Status
Active: In Production.
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 differential inputs and outputs and a total gain range of typically 50dB. In addition, the VGAs offer very low output-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-channel ultrasound beamforming focus error. The device's differential outputs are designed to directly drive ultrasound ADCs through an external passive anti-aliasing filter. A switchable clamp is also provided at each amplifier's outputs to limit the output signals, thereby preventing 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 VOUT = 1.5VP-P and fIN = 5MHz, and an ultrasound-specific* two-tone third-order intermodulation distortion specification of -52dBc at VOUT = 1.5VP-P and fIN = 5MHz.
The MAX2035 operates from a +5.0V power supply, consuming only 127mW/channel. The device is available in a 100-pin TQFP package with an exposed pad. Electrical performance is guaranteed over a 0°C to +70°C temperature range.
|
|
Data Sheet
|
Key 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/
 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 VOUT = 1.5VP-P and fIN = 5MHz
- Two-Tone Ultrasound-Specific* IMD3 of -52dBc at VOUT = 1.5VP-P and fIN = 5MHz
- 127mW Consumption Per Channel
|
|
Applications/Uses
|
|
|
|
| *See the Ultrasound-Specific IMD3 Specification in the
Applications Information section in the full data sheet. |
Diagram
 Functional Diagram
Product Guides
Reliability Reports
| Show FIT data for: |
|
| Request Reliability Report for: |
|
Software/Models
Ordering Information
|
Part Number
|
Free
Sample |
Buy |
Status
|
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
|
Temp |
RoHS/Lead-Free?
Materials Analysis
|
| MAX2035CCQ
|
|
|
Active |
TQFP-EP;100 pin;256 mm²
Outline Drawing:21-0116 (PDF)
Land Pattern: 90-0154 (PDF)
Use pkgcode/variation: C100E-3*
|
0°C to +70°C
|
See data sheet
|
| MAX2035CCQ+
|
|
|
Active |
TQFP-EP;100 pin;256 mm²
Outline Drawing:21-0116 (PDF)
Land Pattern: 90-0154 (PDF)
Use pkgcode/variation: C100E+3*
|
0°C to +70°C
|
RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2035CCQ+T
|
|
|
Active |
TQFP;
Land Pattern: Not Available
|
0°C to +70°C
|
See data sheet
|
| MAX2035CCQ-T
|
|
|
Active |
TQFP;
Land Pattern: Not Available
|
0°C to +70°C
|
See data sheet
|
| MAX2035EVKIT
|
|
|
Active |
KIT;
Land Pattern: Not Available
|
|
See data sheet
|
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
|
Similar Products by Function
| MAX1446 |
10-Bit, 60Msps, 3.0V, Low-Power ADC with Internal Reference |
| MAX1444 |
10-Bit, 40Msps, 3.0V, Low-Power ADC with Internal Reference |
| MAX1181 |
Dual 10-Bit, 80Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1182 |
Dual 10-Bit, 65Msps, +3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1183 |
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs |
| MAX1186 |
Dual 10-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs |
| MAX1193 |
Ultra-Low-Power, 45Msps, Dual 8-Bit ADC |
| MAX1192 |
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC |
| MAX1126 |
Quad, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1127 |
Quad, 12-Bit, 65Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1434 |
Octal, 10-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1436 |
Octal, 12-Bit, 40Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1437 |
Octal, 12-Bit, 50Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX1438 |
Octal, 12-Bit, 65Msps, 1.8V ADC with Serial LVDS Outputs |
| MAX2034 |
Quad-Channel, Ultra-Low-Noise Amplifier with Digitally Programmable Input Impedance |
| MAX2037 |
Ultrasound Variable-Gain Amplifier |
| MAX2036 |
Ultrasound VGA Integrated with CW Octal Mixer |
| MAX2038 |
Ultrasound VGA Integrated with CW Octal Mixer |
Similar Products by Application
Didn't Find What You Need?
Information Index
Document Ref.: 19-0630
Rev 1;
2009-04-06
This page last modified: 2009-11-10
|
Download
E-Mail