Datasheet

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