AD537SPECIFICATIONS(typical @ +25C with V
S
(total) = 5 V to 36 V, unless otherwise noted)
AD537KD
AD537SD
1
Model
AD537JH
AD537JD   AD537KH
AD537SH
1
CURRENT-TO-FREQUENCY CONVERTER
Frequency Range
0kHz to 150kHz
*
*
*
Nonlinearity
1
f
MAX
= 10kHz
0.15% max (0.1% typ)
*
0.07% max
**
f
MAX
= 100kHz
0.25% max (0.15% typ)
*
0.1% max
**
Full-Scale Calibration Error
C = 0.01礔, I
IN
= 1.000mA
?0% max
?% max   ?% max
* *
vs. Supply (f
MAX
< 100kHz)
?.1%/V max (0.01% typ)    *
*
*
vs. Temp (T
MIN
to T
MAX
)
?50ppm/癈 max (50ppm typ) *
50ppm/癈 max (30ppm typ)
2
250ppm/癈 max
ANALOG INPUT AMPLIFIER
(Voltage-to-Current Converter)
Voltage Input Range
Single Supply
0 to (+V
S
4) Volts (min)    *
*
*
Dual Supply
V
S
to (+V
S
4) Volts (min)   *
*
*
Input Bias Current
(Either Input)
100nA
*
*
*
Input Resistance (Noninverting)
250M&
*
*
*
Input Offset Voltage
(Trimmable in D Package Only)   5mV max
*
2 mV max
**
vs. Supply
200礦/V max
100礦/V max 100礦/V max
**
vs. Temp (T
MIN
to T
MAX
)
5礦/癈
*
1礦/癈
10礦/癈 max
Safe Input Voltage
3
盫
S
*
*
*
REFERENCE OUTPUTS
Voltage Reference
Absolute Value
1.00 Volt ?5% max
*
*
*
vs. Temp (T
MIN
to T
MAX
)
50ppm/癈
*
100 ppm/癈 max
**
vs. Supply
?.03%/V max
*
*
*
Output Resistance
4
380&
*
*
*
Absolute Temperature Reference
5
Nominal Output Level
1.00mV/K
*
*
*
Initial Calibration @ +25癈
298mV (?mV typ)
*
298mV (?mV max)
**
Slope Error from 1.00mV/K
?.02mV/K
*
*
*
Slope Nonlinearity
?.1K
*
*
*
Output Resistance
5
900&
*
*
*
OUTPUT INTERFACE (Open Collector Output)
(Symmetrical Square Wave)
Output Sink Current in Logic 0
V
OUT
= 0.4V max (T
MIN
to T
MAX
) 20mA min
20mA min   20mA min
10 mA min
Output Leakage Current in Logic 1
(T
MIN
to T
MAX
)
200nA max
*
*
2礎(chǔ) max
Logic Common Level Range
V
S
to (+V
S
4) Volts
*
*
*
Rise/Fall Times (C
T
= 0.01礔)
I
IN
= lmA
0.2 祍
*
*
*
I
IN
= 1礎(chǔ)
1祍
*
*
*
POWER SUPPLY
Voltage, Rated Performance
Single Supply
4.5V to 36V
*
*
*
Dual Supply
?V to ?8V
*
*
*
Quiescent Current
1.2 mA (2.5 mA max)
*
*
*
TEMPERATURE RANGE
Rated Performance
0癈 to +70癈
*
*
55癈 to +125癈
Storage
65癈 to +150癈
*
*
*
PACKAGE OPTIONS
6, 7
D-14 Ceramic DIP
AD537JD   AD537KD
AD537SD
H-10A Header
AD537JH
AD537KH
AD537SH
NOTES
*Specifications same as AD537JH.
**Specifications same as AD537K.
1
Nonlinearity is specified for a current input level (I
IN
) to the converter from 0.1礎(chǔ) to 1000礎(chǔ). Converter has 100% overrange capability up to I
IN
= 2000礎(chǔ) with slightly
reduced linearity. Nonlinearity is defined as deviation from a straight line from zero to full scale, expressed as a percentage of full scale.
2
Guaranteed not tested.
3
Maximum voltage input level is equal to the supply on either input terminal. However, large negative voltage levels can be applied to the negative terminal if the input is scaled to
a nominal 1mA full scale through an appropriate value resistor (See Figure 2).
4
Loading the 1.0 volt or 1mV/K outputs can cause a significant change in overall circuit performance, as indicated in the applications section. To maintain normal operation,
these outputs should be operated into the external buffer or an external amplifier.
5
Temperature reference output performance is specified from 0癈 to +70癈 for J and K devices, 55癈 to +125癈 for S model.
6
D = Ceramic DIP; H = Hermetic Metal Can. For outline information see Package Information section.
7
For AD537/883B specifications, refer to Analog Devices Military Products Databook.
Specifications subject to change without notice.
REV. C
2