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MAX2055
Digitally Controlled, Variable-Gain, Differential ADC Driver/Amplifier
Industry's First Low-Distortion, IF Differential ADC Driver with Digitally Selectable Gain
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Status
Active: In Production.
Description
The MAX2055 high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA) is designed for use from 30MHz to 300MHz in base-station receivers.
The device integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or can improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. Targeted for ADC driver applications to adjust gain either dynamically or as a one-time channel gain setting, the MAX2055 is ideal for applications requiring high performance. The attenuator provides 23dB of attenuation range with ±0.2dB accuracy.
The MAX2055 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.
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Data Sheet
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An evaluation kit is available: MAX2055EVKIT
Key Features
- 30MHz to 300MHz Frequency Range
- Single-Ended-to-Differential Conversion
- -3dB to +20dB Variable Gain
- 40dBm Output IP3 (at All Gain States and 70MHz)
- 2nd Harmonic -76dBc
- 3rd Harmonic -69dBc
- Noise Figure: 5.8dB at Maximum Gain
- Digitally Controlled Gain with 1dB Resolution and ±0.2dB Accuracy
- Adjustable Bias Current
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Applications/Uses
- Automated Test Equipment (ATE)
- Broadband Systems
- Cell Phone Base Stations
- High-Performance ADC Drivers
- PHS/PAS Infrastructure
- Receiver Gain Control
- Terrestrial Links
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Key Specifications:
| RF and IF Variable Gain Amplifiers |
| Part Number |
Gain Cntl. |
Channels |
RF Freq.
(MHz) |
RF Freq.
(MHz) |
Digital Attenuation Range
(dB) |
Digital Attenuator Step Size
(dB) |
Gain
(dB) |
Noise Figure
(dB) |
OIP3
(dBm) |
OIP2
(dBm) |
HD2
(dBc) |
HD3
(dBc) |
VCC
(V) |
ISUPPLY
(mA) |
Footprint
(mm x mm) |
Package/Pins |
Oper. Temp.
(°C) |
Budgetary Price |
| min |
max |
max |
See Notes |
| MAX2055 |
Digital |
1 |
30 |
300 |
23 |
1 |
20 |
5.8 |
40 |
75 |
-76 |
-69 |
4.75 to 5.25 |
240 |
6.4 x 6.5 |
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-40 to +85 |
$4.97 @1k |
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See All RF and IF Variable Gain Amplifiers (14)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Application Circuit
Application Notes
Product Guides
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX2055EUP+D
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Active |
TSSOP-EP;20 pin;42.9 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0114 (PDF)
Use pkgcode/variation: U20E+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2055EUP+TD
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Active |
TSSOP-EP;20 pin;42.9 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0114 (PDF)
Use pkgcode/variation: U20E+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX2055EUP-D
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Active |
TSSOP;20 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX2055EUP-TD
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Active |
TSSOP;20 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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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.
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More Information
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Information Index
Document Ref.: 19-2799
Rev 0;
2003-05-19
This page last modified: 2009-10-13
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