AD9705BCPZ Analog Devices Inc, AD9705BCPZ Datasheet - Page 41

• Manufacturer Part Number: AD9705BCPZ
• Description: IC DAC TX 10BIT 175MSPS 32-LFCSP
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9705BCPZ

• Data Interface: Serial
• Settling Time: 11ns
• Number Of Bits: 10
• Number Of Converters: 1
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 50mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-LFCSP
• Resolution (bits): 10bit
• Sampling Rate: 175MSPS
• Input Channel Type: Parallel
• Supply Current: 5.1mA
• Digital Ic Case Style: CSP
• No. Of Pins: 32
• Number Of Channels: 1
• Resolution: 10b
• Interface Type: Parallel
• Single Supply Voltage (typ): 1.8/3.3V
• Dual Supply Voltage (typ): Not RequiredV
• Architecture: Segment
• Power Supply Requirement: Analog and Digital
• Output Type: Current
• Integral Nonlinearity Error: ±0.36LSB
• Single Supply Voltage (min): 1.7V
• Single Supply Voltage (max): 3.6V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: LFCSP EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AD9705-EBZ - BOARD EVAL FOR AD9705
• Lead Free Status / Rohs Status: Compliant

DIFFERENTIAL BUFFERED OUTPUT
USING AN OP AMP
A dual op amp (see the circuit shown in Figure 91) can be used
in a differential version of the single-ended buffer shown in
Figure 90. The same R-C network is used to form a 1-pole
differential, low-pass filter to isolate the op amp inputs from the
high frequency images produced by the DAC outputs. The feed-
back resistors, R
formula
The maximum and minimum voltages out of the amplifier are,
respectively,
The common-mode voltage of the output is determined by the
formula
V
V
V
V
OUT
MIN
MAX
CM
= V
= R
=
=
V
V
FB
MAX
MAX
REF
× I
FB
− V
, determine the peak signal swing by the
−
×
FS
V
⎛
⎜
⎜
⎝
1
OUT
OUT
2
+
R
R
FB
B
⎞
⎟
⎟
⎠
Rev. A | Page 41 of 52
AD9704/AD9705
AD9706/AD9707
AD9704/AD9705/AD9706/AD9707
IOUTA
IOUTB
REFIO
OTCM
Figure 91. Single-Supply Differential Buffer
21
19
23
20
R
S
R
S
R
C
R
B
B
ADA4841-2
ADA4841-2
–
+
+
–
R
R
C
C
FB
FB
F
F
V
OUT