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MAX2720, MAX2721
1.7GHz to 2.5GHz, Direct I/Q Modulator with VGA and PA Driver
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Status
All versions are No Longer Available. See Ordering Information for recommended replacements.
Description
The MAX2720/MAX2721 are low-cost, high-performance, direct I/Q modulators designed for use in wideband-CDMA and wireless local-loop (WLL) systems. Their direct-upconversion architecture reduces system cost, component count, and board space compared to devices with dual-conversion architectures.
The MAX2720/MAX2721 include an I/Q modulator, a variable gain amplifier (VGA), and a power amplifier (PA) driver. The quadrature modulator accepts differential baseband I/Q signals and directly modulates an RF carrier in the 1.7GHz to 2.1GHz range (MAX2720) or the 2.1GHz to 2.5GHz range (MAX2721). The VGA provides 35dB of output power control. The modulator's amplitude and phase balance yield 35dBc of sideband suppression and 30dBc of carrier suppression. These devices feature an LO frequency doubler that allows the external LO source to operate at half-frequency or full-frequency when disabled.
The MAX2720/MAX2721 operate from a single +2.7V to +3.3V supply and require only 77mA (MAX2720) or 86mA (MAX2721) of supply current. An additional 20mA of supply current is saved by disabling the stand-alone PA driver. A low-power shutdown mode further reduces supply current to less than 0.1µA. The device is packaged in the small 20-pin TSSOP-EP with exposed paddle to improve RF performance.
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Data Sheet
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Key Features
- RF Frequency Range
- 1.7GHz to 2.1GHz (MAX2720)
- 2.1GHz to 2.5GHz (MAX2721)
- Integrated I/Q Modulator, LO Doubler, VGA, and PA Driver
- 35dB VGA Gain Control Range
- 35dBc Sideband Suppression
- 30dBc Carrier Suppression
- Low Supply Current
- 77mA (MAX2720), 86mA (MAX2721)
- 20mA Reduction with PA Driver Disabled
- 0.1µA Supply Current in Shutdown Mode
- +2.7V to +3.3V Single-Supply Operation
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Applications/Uses
- 2.4GHz Broadband ISM Radios
- DCS/PCS Base Stations
- LMDS/MMDS
- Wideband CDMA Systems
- Wireless Local Loop (WLL)
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Diagram
 Typical Application Circuit
Application Notes
Product Guides
Reliability Reports
| Reliability Report: |
MAX2720.pdf |
| Show FIT data for: |
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX2720EUP
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N/A |
No Longer Available |
MAX2150
2361
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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: No
Materials Analysis |
| MAX2720EUP+
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N/A |
No Longer Available |
MAX2150
2361
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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 |
| MAX2720EUP+T
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N/A |
No Longer Available |
MAX2150
2361
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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 |
| MAX2720EUP-T
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N/A |
No Longer Available |
MAX2150
2361
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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: No
Materials Analysis |
| MAX2721EUP
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N/A |
No Longer Available |
MAX2830
1
7
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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: No
Materials Analysis |
| MAX2721EUP+
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N/A |
No Longer Available |
MAX2830
1
7
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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 |
| MAX2721EUP+T
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N/A |
No Longer Available |
MAX2830
1
7
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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 |
| MAX2721EUP-T
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N/A |
No Longer Available |
MAX2830
1
7
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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: No
Materials Analysis |
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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Notes and Comments
35dB gain control range and 30dBc carrier suppression. The MAX2720 covers 1.7GHz to 2.1GHz, and the MAX2721 covers 2.1GHz to 2.5GHz
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| MAX2240 |
2.5GHz, +20dBm Power Amplifier IC in UCSP Package |
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1606
Rev 0;
2000-01-01
This page last modified: 2009-09-24
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