AD9704 Datasheet, PDF (1/52 Pages) Analog Devices – 8-/10-/12-/14-Bit, 175 MSPS TxDAC D/A Converters

8-/10-/12-/14-Bit, 175 MSPS
TxDAC^® D/A Converters
AD9704/AD9705/AD9706/AD9707
FEATURES
Pin-compatible family
Low power member of pin-compatible
TxDAC product family
Power dissipation @ 3.3 V
22 mW @ 10 MSPS
25 mW @ 25 MSPS
30 mW @ 50 MSPS
Sleep mode: 3.1 mW @ 3.3 V
Supply voltage: 1.7 V to 3.6 V
SFDR to Nyquist
AD9707: 84 dBc @ 5 MHz output
AD9707: 83 dBc @ 10 MHz output
AD9707: 75 dBc @ 20 MHz output
AD9707 NSD @ 10 MHz output, 125 MSPS: −147 dBc/Hz
Differential current outputs: 1 mA to 5 mA
Data format: twos complement or straight binary
On-chip 1.0 V reference
CMOS-compatible digital interface
Edge-triggered latches
Clock input: single-ended and differential
Output common mode: adjustable 0 V to 1.2 V
Power-down mode < 2 mW @ 3.3 V (SPI® controllable)
Serial peripheral interface (SPI)
Self-calibration
32-lead LFCSP_VQ, Pb-free package
PRODUCT HIGHLIGHTS
1. Pin Compatible. The AD970x line of TxDACs is pin-
compatible with the AD974x TxDAC line (LFCSP_VQ
package).
2. Low Power. Complete CMOS DAC operates on a single
supply of 3.6 V down to 1.7 V, consuming 25 mW (3.3 V)
and 10 mW (1.8 V). The DAC full-scale current can be
reduced for lower power operation, and sleep and power-
down modes are provided for low power idle periods.
3. Self-calibration. Self-calibration enables true 14-bit INL
and DNL performance in the AD9707.
4. Twos Complement/Binary Data Coding Support. Data input
supports twos complement or straight binary data coding.
FUNCTIONAL BLOCK DIAGRAM
1.7V TO 3.6V
0.1µF
1.7V
R_{SET TO}
3.6V
CLK+
CLK–
1.7V TO
3.6V
1.0V REF
REFIO
FS ADJ
AVDD
CURRENT
SOURCE
ARRAY
ACOM
AD9707
OTCM
CLKVDD
CLKCOM
SEGMENTED
SWITCHES
LSB
SWITCHES
IOUTA
IOUTB
LATCHES
SPI
DVDD
DCOM
PIN/SPI/RESET
MODE/SDIO
CMODE/SCLK
DIGITAL INPUTS (DB13 TO DB0) SLEEP/CSB
Figure 1. AD9707
5. CMOS Clock Input. High speed, single-ended, and
differential CMOS clock input supports 175 MSPS
conversion rate.
6. SPI Control. SPI control offers a higher level of
programmability.
7. Easy Interfacing to Other Components. Adjustable output
common mode from 0 V to 1.2 V allows for easy interfacing
to other components that accept common-mode levels
greater than 0 V.
8. On-Chip Voltage Reference. The AD970x includes a 1.0 V
temperature-compensated band gap voltage reference.
9. Industry-Standard 32-Lead LFCSP_VQ Package.
Rev. 0
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