LTC1589 Linear Technology Corporation, LTC1589 Datasheet - Page 6

• Manufacturer Part Number: LTC1589
• Description: Ltc1589 - 12-/14-/16-bit Softspan Dacs With Programmable Output Range
• Manufacturer: Linear Technology Corporation

PI FU CTIO S
TYPICAL PERFOR A CE CHARACTERISTICS
R
tors R1 and R2. Normally tied to the inverting input of an
external amplifier. When these resistors are not used,
connect this pin to ground. The absolute maximum volt-
age range on this pin is – 0.3V to 12V.
R1 (Pin 2): Bipolar Resistor R1. The main reference input
V
R
When not used connect this pin to ground.
LTC1588/LTC1589/LTC1592
6
REF
COM
OFS
U
, typically 5V. Accepts up to 15V. Normally tied to
(Pin 3) and the reference input voltage V
(Pin 1): Center Tap Point of the Two Bipolar Resis-
U
– 0.2
– 0.4
– 0.6
– 0.8
–1.0
– 0.2
– 0.4
– 0.6
– 0.8
–1.0
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
–10
–10
Differential Nonlinearity
vs Reference Voltage
in Bipolar Mode
Integral Nonlinearity
vs Reference Voltage
in Bipolar Mode
U
– 8
– 8
– 6
– 6
REFERENCE VOLTAGE (V)
REFERENCE VOLTAGE (V)
– 4
– 4
W
– 2
– 2
U
0
0
2
2
4
4
6
6
1588992 G08
1588992 G06
8
8
REF
10
10
(5V).
R
offset of the output voltage range for bipolar modes.
Accepts up to 15V. Normally tied to R1 and the reference
input voltage V
driven from a different voltage than V
R
of the current to voltage converter op amp. Range limited
to 15V.
WAVEFORM
OFS
FB
500 V/DIV
LD PULSE
SETTLING
(Pin 4): Feedback Network. Normally tied to the output
5V/DIV
GATED
(Pin 3): Bipolar Offset Network. This pin provides the
– 0.2
– 0.4
– 0.6
– 0.8
–1.0
1.0
0.8
0.6
0.4
0.2
0
–10
Differential Nonlinearity
vs Reference Voltage
in Unipolar Mode
USING LT1468 OP AMP
C
0V TO 10V STEP
Full-Scale Settling Waveform
(LTC1592)
FEEDBACK
– 8
– 6
= 20pF
REF
REFERENCE VOLTAGE (V)
– 4
(5V). Alternatively, this pin may be
– 2
500ns/DIV
0
2
4
6
1588992 G07
1592 G04
8
REF
10
.
1588992fa