Precision, Low Noise FGA™ Voltage References
ISL21007
The ISL21007 FGA™ voltage references are extremely low
power, high precision, and low noise voltage references
fabricated on Intersil’s proprietary Floating Gate Analog
technology. The ISL21007 features very low noise (4.5µV
P-P
for
0.1Hz to 10Hz) and very low operating current (150µA, Max). In
addition, the ISL21007 family features guaranteed initial
accuracy as low as ±0.5mV.
This combination of high initial accuracy, low drift, and low
output noise performance of the ISL21007 enables versatile
high performance control and data acquisition applications
with low power consumption.
Features
• Reference Output Voltage . . . .1.250V, 2.048V, 2.500V, 3.000V
• Initial Accuracy . . . . . . . . . . . . . . . . . . . . . . . ±0.5mV (B grade)
• Input Voltage Range
ISL21007-12, 20, 25. . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V
ISL21007-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2V to 5.5V
• Low Output Voltage Noise . . . . . . . . 4.5µV
P-P
(0.1Hz to 10Hz)
• Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 150µA (Max)
• Temperature Coefficient . . . . . . . . . . . . . . 3ppm/°C (B grade)
• Operating Temperature Range. . . . . . . . . . .-40°C to +125°C
• Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ld SOIC
• Pb-Free (RoHS Compliant)
INITIAL
ACCURACY
(mV)
±0.5
±1.0
±2.0
±0.5
±1.0
±2.0
±0.5
±1.0
±2.0
±0.5
±1.0
±2.0
Available Options
PART
NUMBER
ISL21007BFB812Z
(Note 1)
ISL21007CFB812Z
ISL21007DFB812Z
ISL21007BFB820Z
(Note 2)
ISL21007CFB820Z
ISL21007DFB820Z
ISL21007BFB825Z
(Note 1)
ISL21007CFB825Z
ISL21007DFB825Z
ISL21007BFB830Z
(Note 3)
ISL21007CFB830Z
ISL21007DFB830Z
NOTES:
1. Not recommended for new designs. Recommended replacement
part ISL21009.
2. Not recommended for new designs. Recommended replacement
part ISL21007CFB820Z.
3. Not recommended for new designs. Recommended replacement
part ISL21007CFB830Z.
V
OUT
OPTION
(V)
1.250
1.250
1.250
2.048
2.048
2.048
2.500
2.500
2.500
3.000
3.000
3.000
TEMPCO.
(ppm/°C)
3
5
10
3
5
10
3
5
10
3
Applications
• High Resolution A/Ds and D/As
• Digital Meters
• Bar Code Scanners
• Basestations
• Battery Management/Monitoring
• Industrial/Instrumentation Equipment
Related Literature
•
AN1533,
“X-Ray Effects on Intersil FGA References”
•
AN1494,
“Reflow and PC Board Assembly Effects on Intersil
FGA References”
Pin Configuration
ISL21007
(8 LD SOIC)
TOP VIEW
GND or NC
1
2
3
4
8
7
6
5
DNC
DNC
VOUT
TRIM
5
10
VIN
DNC
GND
March 27, 2012
FN6326.10
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Copyright Intersil Americas Inc. 2007, 2011, 2012. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
ISL21007
Ordering Information
PART NUMBER
(Notes 4, 5, 6)
ISL21007BFB812Z
(Note 7)
ISL21007CFB812Z
ISL21007DFB812Z
ISL21007BFB820Z
(Note 8)
ISL21007CFB820Z
ISL21007DFB820Z
ISL21007BFB825Z
(Note 7)
ISL21007CFB825Z
ISL21007DFB825Z
ISL21007BFB830Z
(Note 9)
ISL21007CFB830Z
ISL21007DFB830Z
NOTES:
4. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin
plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
5. Add “-T*” suffix for tape and reel. Please refer to
TB347
for details on reel specifications.
6. For Moisture Sensitivity Level (MSL), please see device information page for
ISL21007.
For more information on MSL please see techbrief
TB363.
7. Not recommended for new designs. Recommended replacement part ISL21009.
8. Not recommended for new designs. Recommended replacement part ISL21007CFB820Z.
9. Not recommended for new designs. Recommended replacement part ISL21007CFB830Z.
PART
MARKING
21007BF Z12
21007CF Z12
21007DF Z12
21007BF Z20
21007CF Z20
21007DF Z20
21007BF Z25
21007CF Z25
21007DF Z25
21007BF Z30
21007CF Z30
21007DF Z30
V
OUT
OPTION
(V)
1.250
1.250
1.250
2.048
2.048
2.048
2.500
2.500
2.500
3.000
3.000
3.000
GRADE
±0.5mV, 3ppm/°C
±1.0mV, 5ppm/°C
±2.0mV, 10ppm/°C
±0.5mV, 3ppm/°C
±1.0mV, 5ppm/°C
±2.0mV, 10ppm/°C
±0.5mV, 3ppm/°C
±1.0mV, 5ppm/°C
±2.0mV, 10ppm/°C
±0.5mV, 3ppm/°C
±1.0mV, 5ppm/°C
±2.0mV, 10ppm/°C
TEMP. RANGE
(°C)
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
PACKAGE
(Pb-Free)
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
PKG. DWG. #
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
M8.15
2
FN6326.10
March 27, 2012
ISL21007
Pin Descriptions
PIN NUMBER
1
2
4
5
6
3, 7, 8
PIN NAME
GND or NC
VIN
GND
TRIM
VOUT
DNC
Ground or No Connection
Power Supply Input Connection
Ground
Allows user trim VOUT ±2.5%
Voltage Reference Output Connection
Do Not Connect; Internal Connection - Must Be Left Floating
DESCRIPTION
Typical Application Circuit
1 GND
+3V
C1
10µF
2 VIN
3 NC
4 GND
NC 8
NC 7
VOUT 6
TRIM 5
ISL21007-12, 20, 25, 30
SPI BUS
X79000
1 SCK
2 A0
3 A1
4 A2
5 SI
6 SO
7 RDY
8 UP
9 DOWN
10 OE
CS 20
CLR 19
VCC 18
VH 17
VL 16
VREF 15
VSS 14
VOUT 13
VBUF 12
VFB 11
LOW NOISE DAC OUTPUT
C1
0.001µF
FIGURE 1. TYPICAL APPLICATION PRECISION 12-BIT SUBRANGING DAC
3
FN6326.10
March 27, 2012
ISL21007
Absolute Voltage Ratings
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Max Voltage V
IN
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6.5V
Max Voltage V
OUT
to GND (10s). . . . . . . . . . . . . . . . . . . . . . -0.5V to V
OUT
+ 1
Voltage on “DNC” pins . . . . . . . . . No connections permitted to these pins.
ESD Rating
Human Body Model (HBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6kV
Machine Model (MM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600V
Charged Device Model (CDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Thermal Information
Thermal Resistance (Typical, Note 11)
θ
JA
(°C/W)
8 Ld SOIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
113.12
Continuous Power Dissipation (Note 11). . . . . . . . . . . . . . . . . . .T
A
= +70°C
8 Ld SOIC Derate 5.88mW/°C above +70°C. . . . . . . . . . . . . . . . . . 471mW
Pb-Free Reflow Profile (Note 12) . . . . . . . . . . . . . . . . . . . . . . see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Temperature Range (Full Range Industrial) . . . . . . . . . . .-40°C to +125°C
Environmental Operating Conditions
X-Ray Exposure (Note 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mRem
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted,
all tests are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A
NOTES:
10. Measured with no filtering, distance of 10” from source, intensity set to 55kV and 70mA current, 30s duration. Other exposure levels should be
analyzed for Output Voltage drift effects. See “Applications Information” on page 16.
11.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
12. Post-reflow drift for the ISL21007 devices will range from 100µV to 1.0mV based on experimental results with devices on FR4 double sided boards.
The design engineer must take this into account when considering the reference voltage after assembly.
Common Electrical Specifications (ISL21007-12, -20, -25, -30)
specified. Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
V
OA
DESCRIPTION
V
OUT
Accuracy @ T
A
= +25°C
ISL21007B
ISL21007C
ISL21007D
TC V
OUT
Output Voltage Temperature
Coefficient (Note NOTES:)
ISL21007B
ISL21007C
ISL21007D
I
IN
Supply Current
Trim Range
t
R
Turn-on Settling Time
Ripple Rejection
e
N
V
N
Output Voltage Noise
Broadband Voltage Noise
Noise Density
V
OUT
= ±0.1%
f = 10kHz
0.1Hz
≤
f
≤
10Hz
10Hz
≤
f
≤
1kHz
f = 1kHz
CONDITIONS
T
A
= -40°C to +125°C, unless otherwise
MIN
MAX
(Note 16) TYP (Note 16)
-0.5
-1.0
-2.0
+0.5
+1.0
+2.0
3
5
10
75
±2.0
±2.5
120
60
4.5
2.2
60
150
UNIT
mV
mV
mV
ppm/°C
ppm/°C
ppm/°C
µA
%
µs
dB
µV
P-P
µV
RMS
nV/√Hz
Electrical Specifications (ISL21007-12, V
OUT
= 1.250V)
PARAMETER
V
IN
V
OUT
ΔV
OUT
/ΔV
IN
DESCRIPTION
Input Voltage Range
Output Voltage
Line Regulation
2.7V < V
IN
< 5.5V
CONDITIONS
specified. Boldface limits apply over the operating temperature range, -40°C to +125°C.
V
IN
= 3.0V, T
A
= -40°C to +125°C, unless otherwise
MIN
(Note 16)
2.7
1.250
100
700
MAX
(Note 16)
5.5
TYP
UNIT
V
V
µV/V
4
FN6326.10
March 27, 2012
ISL21007
Electrical Specifications (ISL21007-12, V
OUT
= 1.250V)
PARAMETER
ΔV
OUT
/ΔI
OUT
DESCRIPTION
Load Regulation
CONDITIONS
Sourcing: 0mA
≤
I
OUT
≤
7mA
Sinking: -7mA
≤
I
OUT
≤
0mA
I
SC
ΔV
OUT
/ΔT
A
ΔV
OUT
/Δt
Short Circuit Current
Thermal Hysteresis (Note 14)
Long Term Stability (Note 15)
T
A
= +25°C, V
OUT
tied to GND
ΔT
A
= +165°C
T
A
= +25°C
specified. Boldface limits apply over the operating temperature range, -40°C to +125°C.
(Continued)
V
IN
= 3.0V, T
A
= -40°C to +125°C, unless otherwise
MIN
(Note 16)
MAX
(Note 16)
100
150
TYP
10
20
40
50
100
UNIT
µV/mA
µV/mA
mA
ppm
ppm
Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
V
IN
V
OUT
ΔV
OUT
/ΔV
IN
ΔV
OUT
/ΔI
OUT
DESCRIPTION
Input Voltage Range
Output Voltage
Line Regulation
Load Regulation
2.7V < V
IN
< 5.5V
Electrical Specifications (ISL21007-20, V
OUT
= 2.048V)
CONDITIONS
V
IN
= 3.0V, T
A
= -40°C to +125°C, unless otherwise specified.
MIN
(Note 16)
2.7
2.048
50
10
20
50
50
75
200
100
150
MAX
(Note 16)
5.5
TYP
UNIT
V
V
µV/V
µV/mA
µV/mA
mA
ppm
ppm
Sourcing: 0mA
≤
I
OUT
≤
7mA
Sinking: -7mA
≤
I
OUT
≤
0mA
I
SC
ΔV
OUT
/ΔT
A
ΔV
OUT
/Δt
Short Circuit Current
Thermal Hysteresis (Note 14)
Long Term Stability (Note 15)
T
A
= +25°C, V
OUT
tied to GND
ΔT
A
= +165°C
T
A
= +25°C
Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
V
IN
V
OUT
ΔV
OUT
/ΔV
IN
ΔV
OUT
/ΔI
OUT
DESCRIPTION
Input Voltage Range
Output Voltage
Line Regulation
Load Regulation
2.7V < V
IN
< 5.5V
Electrical Specifications (ISL21007-25, V
OUT
= 2.500V)
CONDITIONS
V
IN
= 3.0V, T
A
= -40°C to +125°C, unless otherwise specified.
MIN
(Note 16)
2.7
2.500
50
10
20
50
50
50
200
100
150
MAX
(Note 16)
5.5
TYP
UNIT
V
V
µV/V
µV/mA
µV/mA
mA
ppm
ppm
Sourcing: 0mA
≤
I
OUT
≤
5mA
Sinking: -5mA
≤
I
OUT
≤
0mA
I
SC
ΔV
OUT
/ΔT
A
ΔV
OUT
/Δt
Short Circuit Current
Thermal Hysteresis (Note 14)
Long Term Stability (Note 15)
T
A
= +25°C, V
OUT
tied to GND
ΔT
A
= +165°C
T
A
= +25°C
Electrical Specifications (ISL21007-30, V
OUT
= 3.000V)
Boldface limits apply over the operating temperature range, -40°C to +125°C.
PARAMETER
V
IN
V
OUT
ΔV
OUT
/ΔV
IN
ΔV
OUT
/ΔI
OUT
DESCRIPTION
Input Voltage Range
Output Voltage
Line Regulation
Load Regulation
3.2V < V
IN
< 5.5V
Sourcing: 0mA
≤
I
OUT
≤
7mA
Sinking: -7mA
≤
I
OUT
≤
0mA
CONDITIONS
V
IN
= 5.0V, T
A
= -40°C to +125°C, unless otherwise specified.
MIN
(Note 16)
3.2
3.000
50
10
20
200
100
150
MAX
(Note 16)
5.5
TYP
UNIT
V
V
µV/V
µV/mA
µV/mA
5
FN6326.10
March 27, 2012
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