Datasheet LTC1605-1, LTC1605-2 (Analog Devices) - 5

LTC1605-1/LTC1605-2
Ti Ming characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fSAMPLE(MAX) Maximum Sampling Frequency l 100 kHz tCONV Conversion Time l 8 µs tACQ Acquisition Time l 2 µs t1 Convert Pulse Width (Note 11) l 40 ns t2 Data Valid Delay After R/C↓ (Note 9) l 8 µs t3 BUSY Delay from R/C↓ CL = 50pF l 65 ns t4 BUSY Low 8 µs t5 BUSY Delay After End of Conversion 220 ns t6 Aperture Delay 40 ns t7 Bus Relinquish Time l 10 35 83 ns t8 BUSY Delay After Data Valid l 50 200 ns t9 Previous Data Valid After R/C↓ 7.4 µs t10 R/C to CS Setup Time (Notes 9, 10) 10 ns t11 Time Between Conversions 10 µs t12 Bus Access and Byte Delay (Notes 9, 10) 10 83 ns
p ower requireMenTs The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VDD Positive Supply Voltage (Notes 9, 10) 4.75 5.25 V IDD Positive Supply Current l 11 16 mA PDIS Power Dissipation 55 80 mW
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute and 0000 0000 0000 0001. Zero error for the LTC1605-2 is the voltage Maximum Rating condition for extended periods may affect device measured from –0.5LSB when the output code flickers between 0000 reliability and lifetime. 0000 0000 0000 and 1111 1111 1111 1111.
Note 2:
All voltage values are with respect to ground with DGND, AGND1
Note 9:
Guaranteed by design, not subject to test. and AGND2 wired together (unless otherwise noted).
Note 10:
Recommended operating conditions.
Note 3:
When these pin voltages are taken below ground or above VANA =
Note 11:
With CS low the falling R/C edge starts a conversion. If R/C VDIG = VDD, they will be clamped by internal diodes. This product can returns high at a critical point during the conversion it can create small handle input currents of greater than 100mA below ground or above VDD errors. For best results ensure that R/C returns high within 3µs after the without latch-up. start of the conversion.
Note 4:
When these pin voltages are taken below ground, they will be
Note 12:
As measured with fixed resistors shown in Figure 4. Adjustable to clamped by internal diodes. This product can handle input currents of zero with external potentiometer. 90mA below ground without latchup. These pins are not clamped to VDD.
Note 13:
Full-scale error is the untrimmed deviation from ideal last code
Note 5:
VDD = 5V, fSAMPLE = 100kHz, tr = tf = 5ns unless otherwise transition, divided by the full-scale range and includes the effect of offset specified. error.
Note 6:
Linearity, offset and full-scale specifications apply for a VIN input
Note 14:
All specifications in dB are referred to a full-scale 4V input for the with respect to ground. LTC1605-1 and to ±4V input for the LTC1605-2.
Note 7:
Integral nonlinearity is defined as the deviation of a code from a
Note 15:
Full-power bandwidth is defined as full-scale input frequency straight line passing through the actual end points of the transfer curve. at which a signal-to-(noise + distortion) degrades to 60dB or 10 bits of The deviation is measured from the center of the quantization band. accuracy.
Note 8:
Zero error for the LTC1605-1 is the voltage measured from
Note 16:
Recovers to specified performance after (±20V) input 0.5LSB when the output code flickers between 0000 0000 0000 0000 overvoltage for the LTC1605-1 and ±15V for the LTC1605-2. 160512fa For more information www.linear.com/LTC1605-1 5