ANALOG DEVICES ADR290, ADR291, ADR292 Service Manual
查询ADR290供应商查询ADR290供应商
Low Noise Micropower
2.048 V, 2.5 V, and 4.096 V
a
FEATURES
Supply Range
2.35 V to 15 V, ADR290
2.8 V to 15 V, ADR291
4.4 V to 15 V, ADR292
Supply Current 12 A Max
Low-Noise 6 V, 8 V, 12 V p-p (0.1 Hz–10 Hz)
High Output Current 5 mA
Temperature Range 40C to 125C
Pin Compatible with REF02/REF19x
APPLICATIONS
Portable Instrumentation
Precision Reference for 3 V and 5 V Systems
A/D and D/A Converter Reference
Solar-Powered Applications
Loop-Current-Powered Instruments
Precision Voltage References
ADR290/ADR291/ADR292
PIN CONFIGURATIONS
8-Lead Narrow Body SO (SO Suffix)
NC
1
ADR29x
V
2
IN
TOP VIEW
(Not to Scale)
NC
3
4
GND
NC = NO CONNECT
8-Lead TSSOP (RU Suffix)
NC
1
ADR29x
V
2
IN
TOP VIEW
(Not to Scale)
NC
3
4
GND
NC = NO CONNECT
8
NC
NC
7
V
6
OUT
NC
5
8
NC
NC
7
V
6
OUT
NC
5
GENERAL DESCRIPTION
The ADR290, ADR291 and ADR292 are low noise, micropower precision voltage references that use an XFET
circuit. The new XFET
architecture offers significant perfor-
®
reference
mance improvements over traditional bandgap and Buried
Zener-based references. Improvements include: one quarter the
voltage noise output of bandgap references operating at the
same current, very low and ultralinear temperature drift, low
thermal hysteresis and excellent long-term stability.
The ADR29x family are series voltage references providing stable
and accurate output voltages from supplies as low as 2.35 V for the
ADR290. Output voltage options are 2.048 V, 2.5 V, and 4.096 V
for the ADR290, ADR291, and ADR292 respectively. Quiescent
ADR29x Product
Output Voltage Initial Accuracy Temperature Coefficient
Part Number (V) (%) (ppm/C) Max
ADR290 2.048 0.10, 0.15, 0.29 8, 15, 25
ADR291 2.500 0.08, 0.12, 0.24 8, 15, 25
ADR292 4.096 0.07, 0.10, 0.15 8, 15, 25
ADR293 5.000 (See ADR293 Data Sheet)
current is only 12 µA, making these devices ideal for battery-
powered instrumentation. Three electrical grades are available
offering initial output accuracies of ±2 mV, ±3 mV and ± 6 mV
max for the ADR290 and ADR291, and ±3 mV, ±4 mV and
±6 mV max for the ADR292. Temperature coefficients for the
three grades are 8 ppm/°C, 15 ppm/°C, and 25 ppm/°C max,
respectively. Line regulation and load regulation are typically
30 ppm/V and 30 ppm/mA, maintaining the reference’s overall
high performance. For a device with 5.0 V output, refer to the
ADR293 data sheet.
The ADR290, ADR291, and ADR292 references are specified
over the extended industrial temperature range of –40°C to
+125°C. Devices are available in the 8-lead SOIC and 8-lead
TSSOP packages.
XFET is a registered trademark of Analog Devices, Inc.
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703 © Analog Devices, Inc., 2001
ADR290/ADR291/ADR292
ADR290–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
(VS = 2.7 V, TA = +25C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
E GRADE
I
Output Voltage V
Initial Accuracy V
O
OERR
= 0 mA 2.046 2.048 2.050 V
OUT
–2 +2 mV
–0.10 +0.10 %
F GRADE
I
Output Voltage V
Initial Accuracy V
O
OERR
= 0 mA 2.045 2.048 2.051 V
OUT
–3 +3 mV
–0.15 +0.15 %
G GRADE
Output Voltage V
Initial Accuracy V
O
OERR
I
= 0 mA 2.042 2.048 2.054 V
OUT
–6 +6 mV
–0.29 +0.29 %
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
2.7 V to 15 V, I
IN
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G” Grade 40 125 ppm/mA
LONG-TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
N
N
O
After 1000 hrs of Operation @ 125°C 50 ppm
0.1 Hz to 10 Hz 6 µV p-p
@ 1 kHz 420 nV/√Hz
ELECTRICAL SPECIFICATIONS
(VS = 2.7 V, TA = –25C ≤ TA ≤ +85C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
I
“E” Grade TCV
O
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 6 15 ppm/°C
“G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
2.7 V to 15 V, I
IN
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
ELECTRICAL SPECIFICATIONS
(VS = 2.7 V, TA = 40C ≤ TA ≤ +125C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
I
“E” Grade TCV
O
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C
“G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
2.7 V to 15 V, I
IN
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT I
S
TA = +25°C812µA
–40°C ≤ TA ≤ +125°C1215µA
THERMAL HYSTERESIS V
Specifications subject to change without notice.
O–HYS
SO-8, TSSOP-8 50 ppm
–2–
REV. B
ADR291–SPECIFICATIONS
ADR290/ADR291/ADR292
ELECTRICAL SPECIFICATIONS
(VS = 3.0 V, TA = +25C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
E GRADE
I
Output Voltage V
Initial Accuracy V
O
OERR
= 0 mA 2.498 2.500 2.502 V
OUT
–2 +2 mV
–0.08 +0.08 %
F GRADE
Output Voltage V
Initial Accuracy V
O
OERR
I
= 0 mA 2.497 2.500 2.503 V
OUT
–3 +3 mV
–0.12 +0.12 %
G GRADE
I
Output Voltage V
Initial Accuracy V
O
OERR
= 0 mA 2.494 2.500 2.506 V
OUT
–6 +6 mV
–0.24 +0.24 %
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
3.0 V to 15 V, I
IN
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F“ Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G“ Grade 40 125 ppm/mA
LONG-TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
N
N
O
After 1000 hrs of Operation @ 125°C 50 ppm
0.1 Hz to 10 Hz 8 µV p-p
@ 1 kHz 480 nV/√ Hz
ELECTRICAL SPECIFICATIONS
(VS = 3.0 V, TA = –25C ≤ TA ≤ +85C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
“E” Grade TCV
O
I
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 5 15 ppm/°C
“G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
3.0 V to 15 V, I
IN
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
(V
ELECTRICAL SPECIFICATIONS
= 3.0 V, TA = –40C ≤ TA ≤ +125C unless otherwise noted)
S
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
“E” Grade TCV
O
I
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C
“G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
3.0 V to 15 V, I
IN
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT I
S
TA = +25°C912µA
–40°C ≤ TA ≤ +125°C1215µA
THERMAL HYSTERESIS V
Specifications subject to change without notice.
O–HYS
SO-8, TSSOP-8 50 ppm
REV. B
–3–
ADR290/ADR291/ADR292
ADR292–SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
(VS = 5 V, TA = +25C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
E GRADE
Output Voltage V
Initial Accuracy V
O
OERR
I
= 0 mA 4.093 4.096 4.099 V
OUT
–3 +3 mV
–0.07 +0.07 %
F GRADE
Output Voltage V
Initial Accuracy V
O
OERR
I
= 0 mA 4.092 4.096 4.1 V
OUT
–4 +4 mV
–0.10 +0.10 %
G GRADE
I
Output Voltage V
Initial Accuracy V
O
OERR
= 0 mA 4.090 4.096 4.102 V
OUT
–6 +6 mV
–0.15 +0.15 %
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
IN
4.5 V to 15 V, I
= 0 mA 30 100 ppm/V
OUT
“G” Grade 40 125 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 30 100 ppm/mA
“G” Grade 40 125 ppm/mA
LONG-TERM STABILITY ∆V
NOISE VOLTAGE e
WIDEBAND NOISE DENSITY e
O
N
N
After 1000 hrs of Operation @ 125°C 50 ppm
0.1 Hz to 10 Hz 12 µV p-p
@ 1 kHz 640 nV/√ Hz
ELECTRICAL SPECIFICATIONS
(VS = 5 V, TA = –25C ≤ TA ≤ +85C unless otherwise noted)
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
“E” Grade TCV
O
I
= 0 mA 3 8 ppm/°C
OUT
“F” Grade 5 15 ppm/°C
“G” Grade 10 25 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
IN
4.5 V to 15 V, I
= 0 mA 35 125 ppm/V
OUT
“G” Grade 50 150 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 125 ppm/mA
“G” Grade 30 150 ppm/mA
(V
ELECTRICAL SPECIFICATIONS
= 5 V, TA = –40C ≤ TA ≤ +125C unless otherwise noted)
S
Parameter Symbol Conditions Min Typ Max Unit
TEMPERATURE COEFFICIENT
“E” Grade TCV
O
I
= 0 mA 3 10 ppm/°C
OUT
“F” Grade 5 20 ppm/°C
“G” Grade 10 30 ppm/°C
LINE REGULATION
“E/F” Grades ∆V
O
/∆V
IN
4.5 V to 15 V, I
= 0 mA 40 200 ppm/V
OUT
“G” Grade 70 250 ppm/V
LOAD REGULATION
“E/F” Grades ∆V
/∆I
O
LOADVS
= 5.0 V, 0 mA to 5 mA 20 200 ppm/mA
“G” Grade 30 300 ppm/mA
SUPPLY CURRENT I
S
TA = +25°C1015µA
–40°C ≤ TA ≤ +125°C1218µA
THERMAL HYSTERESIS V
Specifications subject to change without notice.
O–HYS
SO-8, TSSOP-8 50 ppm
–4–
REV. B
ADR290/ADR291/ADR292
WARNING!
ESD SENSITIVE DEVICE
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V
Output Short-Circuit Duration to GND . . . . . . . . . . Indefinite
Storage Temperature Range
SO, RU Package . . . . . . . . . . . . . . . . . . . ⫺65°C to 150°C
Operating Temperature Range
Package Type JA*
8-Lead SOIC (SO) 158 43 °C/W
8-Lead TSSOP (RU) 240 43 °C/W
*θJA is specified for worst-case conditions, i.e., θ
testing. In practice, θ
is specified for a device soldered in the circuit board.
JA
ADR290/ADR291/ADR292. . . . . . . . . . . ⫺40°C to 125°C
Junction Temperature Range
SO, RU Package . . . . . . . . . . . . . . . . . . . ⫺65°C to 125°C
Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . 300°C
NOTES
1. Stresses above those listed under Absolute Maximum Ratings may
cause permanent damage to the device. This is a stress rating only; functional
operation at or above this specification is not implied. Exposure to the
above maximum rating conditions for extended periods may affect device
reliability.
2. Remove power before inserting or removing units from their sockets.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADR290/ADR291/ADR292 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high-energy electrostatic discharges. Therefore,
proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
JC
is specified for device in socket
JA
Unit
ORDERING GUIDE
Temperature Number of
Output Initial Coefficient Package Package Parts per
Model Voltage Accuracy (%) Max (ppm/C) Description Option Package
ADR290
ER, ER-REEL7, ER-REEL 2.048 0.10 8 SOIC SO-8 98, 1000, 2500
FR, FR-REEL7, FR-REEL 2.048 0.15 15 SOIC SO-8 98, 1000, 2500
GR, GR-REEL7, GR-REEL 2.048 0.29 25 SOIC SO-8 98, 1000, 2500
GRU-REEL7, GRU-REEL 2.048 0.29 25 TSSOP RU-8 1000, 2500
ADR291
ER, ER-REEL7, ER-REEL 2.50 0.08 8 SOIC SO-8 98, 1000, 2500
FR, FR-REEL7, FR-REEL 2.50 0.12 15 SOIC SO-8 98, 1000, 2500
GR, GR-REEL7, GR-REEL 2.50 0.24 25 SOIC SO-8 98, 1000, 2500
GRU-REEL7, GRU-REEL 2.50 0.24 25 TSSOP RU-8 1000, 2500
ADR292
ER, ER-REEL7, ER-REEL 4.096 0.07 8 SOIC SO-8 98, 1000, 2500
FR, FR-REEL7, FR-REEL 4.096 0.10 15 SOIC SO-8 98, 1000, 2500
GR, GR-REEL7, GR-REEL 4.096 0.15 25 SOIC SO-8 98, 1000, 2500
GRU-REEL7, GRU-REEL 4.096 0.15 25 TSSOP RU-8 1000, 2500
See ADR293 data sheet for ordering guide.
OTHER XFET PRODUCTS
Part Nominal Output Package
Number Voltage (V) Type
ADR420 2.048 8-Lead_µSOIC/SOIC
ADR421 2.50 8-Lead_µSOIC/SOIC
REV. B
–5–
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