ISL5857_15 Datasheet, PDF (1/14 Pages) Intersil Corporation – 12-bit, +3.3V, 260+MSPS, High Speed D/A Converter

DATASHEET
12-bit, +3.3V, 260+MSPS, High Speed D/A Converter
ISL5857
The ISL5857 is a 12-bit, 260+MSPS (Mega Samples Per
Second), CMOS, high speed, low power, D/A (digital-to-analog)
converter designed specifically for use in high performance
communication systems such as base transceiver stations
utilizing 2.5G or 3G cellular protocols.
This device complements the ISL5x57 family of high speed
converters, which include 10, 12, and 14-bit devices.
Applications
• Cellular Infrastructure - single or multicarrier: IS-136, IS-95,
GSM, EDGE, CDMA2000, WCDMA, TDS-CDMA
• BWA infrastructure
• Medical/test instrumentation
• Wireless communication systems
• High resolution imaging systems
• Arbitrary waveform generators
Features
• Low power . . . . . . . . 103mW with 20mA output at 130MSPS
• Adjustable full scale output current. . . . . . . . . 2mA to 20mA
• +3.3V power supply
• 3V LVCMOS compatible inputs
• Excellent spurious free dynamic range
(73dBc to Nyquist, f_S = 130MSPS, f_OUT = 10MHz)
• UMTS adjacent channel power = 70dB at 19.2MHz
• EDGE/GSM SFDR = 90dBc at 11MHz in 20MHz window
• Pin compatible, 3.3V, lower power replacement for the
AD9752 and HI5860
• Pb-free (RoHS compliant)
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
50Ω
BEAD
+
10µH
10µF
0.1µF
ISL5857
D11 (MSB) (1)
(25, 19) NC
(15) SLEEP
(16) REFLO
D10 (2)
D9 (3)
(17) REFIO
D8 (4)
D7 (5)
D6 (6)
(18) FSADJ
D5 (7)
D4 (8)
D3 (9)
(22) IOUTA
(21) IOUTB
D2 (10)
D1 (11)
D0 (LSB) (12)
(23) COMP
CLK (28)
DCOM (26, 13, 14)
(20) ACOM
DV_DD (27)
(24) AV_DD
0.1µF
50Ω
ONE CONNECTION
DCOM
ACOM
1:1, Z1:Z2
R_SET 1.91kΩ
(50Ω)
REPRESENTS
ANY 50Ω LOAD
0.1µF
FERRITE
BEAD
10µH
+ _{+3.3V (VDD)}
0.1µF
10µF
FIGURE 1. TYPICAL APPLICATIONS CIRCUIT
October 7, 2015
1
FN6079.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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