ISL28270INEVAL1Z Intersil, ISL28270INEVAL1Z Datasheet - Page 13

• Manufacturer Part Number: ISL28270INEVAL1Z
• Description: EVALUATION BOARD FOR ISL28270
• Manufacturer: Intersil

Specifications of ISL28270INEVAL1Z

• Channels Per Ic: 2 - Dual
• Amplifier Type: Instrumentation
• Output Type: Single-Ended, Rail-to-Rail
• Slew Rate: 0.5 V/µs
• -3db Bandwidth: 240kHz
• Current - Output / Channel: 29mA
• Operating Temperature: -40°C ~ 125°C
• Current - Supply (main Ic): 120µA
• Voltage - Supply, Single/dual (±): 2.4 V ~ 5.5 V, ±1.2 V ~ 2.75 V
• Board Type: Fully Populated
• Utilized Ic / Part: ISL28270
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
Pin Descriptions
16 Ld QSOP
FIGURE 47. + SLEW RATE vs TEMPERATURE,
ISL28270
2, 15
3, 14
4, 13
5, 12
6, 11
7, 10
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
-40
n = 1000
16 Ld QSOP
INPUT = ±0.015V AT GAIN = +10
ISL28273
-20
2, 15
3, 14
4, 13
5, 12
6, 11
0
TEMPERATURE (°C)
28 Ld QSOP
ISL28470
20
16, 28
17, 27
18, 26
19, 25
20, 24
21, 23
1, 13
2, 12
3, 11
4, 10
13
5, 9
6, 8
MEDIAN
40
MAX
MIN
60
PIN NAME
OUT_A,B
FB+_A,B
FB-_A,B
IN+_A,B
IN-_A,B
EN_A,B
C_D
C_D
C_D
C_D
C_D
C_D
80
ISL28270, ISL28273, ISL28470
V
unless otherwise specified. (Continued)
+
= +5V, V
100
EQUIVALENT
120
Circuit 1A,
Circuit 1A,
Circuit 1A,
Circuit 1A,
Circuit 1B
Circuit 1B
Circuit 1B
Circuit 1B
CIRCUIT
-
Circuit 3
Circuit 2
= 0V V
CM
= 1/2V
Output Voltage. A complementary Class AB common-source output
stage drives the output of each channel. When disabled, the outputs
are in a high impedance state
Positive Feedback high impedance terminals. ISL28270 and ISL28470
input circuit is shown in Circuit 1A, and the ISL28273 input circuit is
shown in Circuit 1B. It can be used as a REF terminal to adjust or level
shift the output.
ISL28273: to avoid offset drift, it is recommended that the terminals of
the ISL28273 are not overdriven beyond 1V and the input current must
never exceed 5mA.
Negative Feedback high impedance terminals. The FB- pins connect to
an external resistor divider to individually set the desired gain of the in-
amp. ISL28270 and ISL28470 input circuit is shown in Circuit 1A, and
the ISL28273 input circuit is shown in Circuit 1B.
ISL28273: to avoid offset drift, it is recommended that the terminals of
the ISL28273 are not overdriven beyond 1V and the input current must
never exceed 5mA.
High impedance Inverting input terminals. Connect to the low side of
the input source signal. ISL28270 and ISL28470 input circuit is shown
in Circuit 1A, and the ISL28273 input circuit is shown in Circuit 1B.
ISL28273: to avoid offset drift, it is recommended that the terminals of
the ISL28273 are not overdriven beyond 1V and the input current must
never exceed 5mA.
High impedance Non-inverting input terminals. Connect to the high
side of the input source signal. ISL28270 and ISL28470 input circuit is
shown in Circuit 1A, and the ISL28273 input circuit is shown in Circuit
1B.
ISL28273: to avoid offset drift, it is recommended that the terminals of
the ISL28273 are not overdriven beyond 1V and the input current must
never exceed 5mA.
Active LOW logic pins. When pulled above 2V, the corresponding
channel turns off and OUT is high impedance. A channel is enabled
when pulled below 0.8V. Built-in pull downs define each EN pin LOW
when left floating.
FIGURE 48. - SLEW RATE vs TEMPERATURE, INPUT =
+
, V
EN
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
= V-, R
-40
n = 1000
±0.15V AT GAIN = +10
-20
L
= Open, T
0
PIN FUNCTION
TEMPERATURE (°C)
A
20
= +25°C,
MIN
MEDIAN
40
MAX
60
80
October 21, 2009
100
FN6260.6
120