ꢌ
ꢒ
ꢊ
ꢗ
ꢗ
ꢁ
ꢘ
SBAS308A − MAY 2004 − REVISED MARCH 2005
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢈ
ꢉ
ꢊ
ꢋ
ꢊ
ꢌ
ꢍ
ꢎ
ꢏ
ꢐ
ꢑ
ꢂ
ꢅ
ꢐ
ꢂ
ꢒ
ꢄ
ꢑ
ꢄ
ꢅ
ꢎ
ꢏ
ꢓ
ꢐ
ꢍ
ꢔ
ꢕ
ꢖ
ꢅ
ꢕ
ꢖ
D
Pin-Compatible with:
FEATURES
− ADS5500 (14-Bit, 125MSPS)
− ADS5541 (14-Bit, 105MSPS)
− ADS5520 (12-Bit, 125MSPS)
− ADS5521 (12-Bit, 105MSPS)
− ADS5522 (12-Bit, 80MSPS)
D
D
D
D
D
D
D
D
14-Bit Resolution
80MSPS Sample Rate
High SNR: 72.9dBFS at 100 MHz f
IN
High SFDR: 88dBc at 100 MHz f
IN
APPLICATIONS
D
2.3V Differential Input Voltage
PP
Wireless Communication
− Communication Receivers
− Base Station Infrastructure
Internal Voltage Reference
3.3V Single-Supply Voltage
D
D
D
D
D
D
Test and Measurement Instrumentation
Single and Multichannel Digital Receivers
Analog Power Dissipation: 545mW
− Output Buffer Power: 129mW
Communication Instrumentation
− Radar, Infrared
D
D
TQFP-64 PowerPADE Package
Recommended Op Amps:
THS3202, THS3201, THS4503,
OPA695, OPA847
Video and Imaging
Medical Equipment
Military Equipment
DESCRIPTION
The ADS5542 is a high-performance, 14-bit, 80MSPS analog-to-digital converter (ADC). To provide a complete converter
solution, it includes a high-bandwidth linear sample-and-hold stage (S&H) and internal reference. Designed for
applications demanding the highest speed and highest dynamic performance in very little space, the ADS5542 has
excellent analog power dissipation of 545mW and output buffer power dissipation of 129mW from a 3.3V single-supply
voltage. This allows an even higher system integration density. The provided internal reference simplifies system design
requirements. Parallel CMOS compatible output ensures seamless interfacing with common logic.
The ADS5542 is available in a 64-pin TQFP PowerPAD package and is pin-compatible with the ADS5500, ADS5541,
ADS5520, ADS5521, and ADS5522. This device is specified over the full temperature range of −40°C to +85°C.
AVDD
DRVDD
CLK+
CLK
CLKOUT
Timing Circuitry
−
D0
V +
14−Bit
Pipeline
ADC Core
Digital
Error
Correction
IN
.
.
.
Output
Control
S&H
V
−
IN
D13
OVR
DFS
Control Logic
Internal
Reference
CM
Serial Programming Register
ADS5542
AGND
DRGND
SCLK
SEN
SDATA
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPad is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
ꢋꢙ ꢚ ꢒꢛ ꢓ ꢜꢝ ꢚꢞ ꢒ ꢌꢜꢌ ꢄꢍ ꢟꢐ ꢖ ꢠꢎ ꢅꢄꢐꢍ ꢄꢡ ꢢꢣ ꢖ ꢖ ꢕꢍꢅ ꢎꢡ ꢐꢟ ꢤꢣꢥ ꢏꢄꢢ ꢎꢅꢄ ꢐꢍ ꢦꢎ ꢅꢕꢧ ꢋꢖ ꢐꢦꢣ ꢢꢅꢡ
ꢢ ꢐꢍ ꢟꢐꢖ ꢠ ꢅꢐ ꢡ ꢤꢕ ꢢ ꢄ ꢟꢄ ꢢ ꢎ ꢅꢄ ꢐꢍꢡ ꢤ ꢕꢖ ꢅꢨꢕ ꢅꢕ ꢖ ꢠꢡ ꢐꢟ ꢜꢕꢩ ꢎꢡ ꢝꢍꢡ ꢅꢖ ꢣꢠ ꢕꢍꢅ ꢡ ꢡꢅ ꢎꢍꢦ ꢎꢖ ꢦ ꢪ ꢎꢖ ꢖ ꢎ ꢍꢅꢫꢧ
ꢋꢖ ꢐ ꢦꢣꢢ ꢅ ꢄꢐ ꢍ ꢤꢖ ꢐ ꢢ ꢕ ꢡ ꢡ ꢄꢍ ꢑ ꢦꢐ ꢕ ꢡ ꢍꢐꢅ ꢍꢕ ꢢꢕ ꢡꢡ ꢎꢖ ꢄꢏ ꢫ ꢄꢍꢢ ꢏꢣꢦ ꢕ ꢅꢕ ꢡꢅꢄ ꢍꢑ ꢐꢟ ꢎꢏ ꢏ ꢤꢎ ꢖ ꢎꢠ ꢕꢅꢕ ꢖ ꢡꢧ
Copyright 2004−2005, Texas Instruments Incorporated
www.ti.com