MAX5195EGM MAXIM [Maxim Integrated Products], MAX5195EGM Datasheet - Page 13

• Manufacturer Part Number: MAX5195EGM
• Description: 14-Bit, 260Msps High-Dynamic Performance DAC
• Manufacturer: MAXIM [Maxim Integrated Products]

Figure 7a. Single-Ended Unbuffered Output Configuration
Figure 7b. Single-Ended Buffered Output Configuration
swing of 1V
full-scale current of 20mA.
Alternatively, an external unity-gain amplifier can be
used to buffer the outputs. This circuit works as an I-V
amplifier (Figure 7b), in which OUTP is held at AV
the inverting terminal of the buffer amplifier. OUTN
should then be connected to AV
current path for the current switched to OUTP. The
P-P
(0.5V
______________________________________________________________________________________
P-P
14
D0–D13
MAX5195
14
D0–D13
single ended) when applying a
MAX5195
CC
to provide a DC-
AGND, DGND
AV
CC
AGND, DGND
AV
, DV
14-Bit, 260Msps High-Dynamic
CC
CC
, DV
CC
CC
by
OUTP
OUTN
amplifier’s maximum output swing and the MAX5195
full-scale current determine the value of R
optional roll-off capacitor (C
helps to ease dV/dt requirements at the input of the
operational amplifier. It is recommended that the ampli-
fier’s power-supply rails be higher than the resistor’s
output reference voltage AV
negative output swing around AV
OUTP
OUTN
AV
CC
AV
AV
CC
CC
R
27.4Ω
R
27.4Ω
T
T
V
Performance DAC
OUT_
R
INTERNAL R2R NETWORK AND EXTERNAL
TERMINATION RESISTOR
LOAD
AGND
= I
AGND
: RESISTOR COMBINATION OF
FS
× R
V
V
OUTP
OUTN
LOAD
C
R
LOOP
LOOP
LOOP
CC
due to its positive and
CC
) in the feedback loop
AGND
.
V
OUT
LOOP
. An
13