Datasheet LTC1609 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 16-Bit, 200ksps, Serial Sampling ADC with Multiple Input Ranges |
| Pages / Page | 24 / 1 — FEATURES. DESCRIPTIO. Sample Rate: 200ksps. Input Ranges. Unipolar: 0V to … |
| File Format / Size | PDF / 438 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. Sample Rate: 200ksps. Input Ranges. Unipolar: 0V to 10V, 0V to 5V and 0V to 4V. Bipolar:. 10V,. 5V and. 3.3V
Model Line for this Datasheet
- LTC1609ACSW#PBF LTC1609ACSW#PBF LTC1609ACSW#TRPBF LTC1609ACSW#TRPBF LTC1609AISW#PBF LTC1609AISW#PBF LTC1609AISW#TRPBF LTC1609AISW#TRPBF LTC1609CG#PBF LTC1609CG#PBF LTC1609CG#TRPBF LTC1609CG#TRPBF LTC1609CSW#PBF LTC1609CSW#PBF LTC1609CSW#TRPBF LTC1609CSW#TRPBF LTC1609IG#PBF LTC1609IG#PBF LTC1609IG#TRPBF LTC1609IG#TRPBF LTC1609ISW#PBF LTC1609ISW#PBF LTC1609ISW#TRPBF LTC1609ISW#TRPBF
Text Version of Document
LTC1609 16-Bit, 200ksps, Serial ADC with Multiple Input Ranges
U FEATURES DESCRIPTIO
■
Sample Rate: 200ksps
The LTC®1609 is a 200ksps, serial sampling 16-bit A/D ■
Input Ranges
converter that draws only 65mW (typical) from a single 5V
Unipolar: 0V to 10V, 0V to 5V and 0V to 4V
supply. This easy-to-use device includes a sample-and-
Bipolar:
±
10V,
±
5V and
±
3.3V
hold, a precision reference, a switched capacitor succes- ■
Guaranteed No Missing Codes
sive approximation A/D and trimmed internal clock. ■ Serial I/O The input range is specified for bipolar inputs of ±10V, ■ Single 5V Supply ±5V and ±3.3V and unipolar inputs of 0V to 10V, 0V to 5V ■ Power Dissipation: 65mW Typ and 0V to 4V. Maximum DC specs include ±2LSB INL and ■ Power Down Mode: 50µW 16-bit no missing codes over temperature. It has a typical ■ SNR: 87dB Typ signal-to-noise ratio of 87dB. ■ Operates with Internal or External Reference ■ 28-Pin SSOP and 20-Pin SO Packages The ADC has a high speed serial interface. The serial ■ Improved 2nd Source to ADS7809 and AD977A output data can be clocked out using either the internal
U
serial shift clock or be clocked out by an external shift
APPLICATIO S
clock. A separate convert start input (R/C) and a data ready signal (BUSY) ease connections to FIFOs, DSPs and ■ Industrial Process Control microprocessors. ■ Multiplexed Data Acquisition Systems , LTC and LT are registered trademarks of Linear Technology Corporation. ■ High Speed Data Acquisition for PCs ■ Digital Signal Processing
U TYPICAL APPLICATIO 200kHz, 16-Bit Serial Sampling ADC Configured for
±
10V Inputs
200Ω 1 28 ANALOG INPUT R1IN VDIG 5V – 10V TO 10V 2 27 +
Nonaveraged 4096 Point FFT Plot
AGND1 VANA 10µF 0.1µF 100Ω 3 26 0 R2IN PWRD 33.2k f 4 25 SAMPLE = 200kHz R3IN BUSY f –20 IN = 1kHz 5 24 SINAD = 87.2dB NC CS THD = –100.1dB 2.5V 6 LTC1609 23 CAP NC + –40 2.5V 7 22 2.2µF REF NC + 8 21 –60 2.2µF NC R/C 9 20 AGND2 NC –80 10 19 MAGNITUDE (dB) NC TAG 11 18 SERIAL INTERFACE –100 NC NC 12 17 SB/BTC DATA –120 13 16 EXT/INT DATACLK –130 14 15 0 25 50 75 100 DGND SYNC FREQUENCY (kHz) 1609 TA01 1609 G06 1609fa 1
U FEATURES DESCRIPTIO
■
Sample Rate: 200ksps
The LTC®1609 is a 200ksps, serial sampling 16-bit A/D ■
Input Ranges
converter that draws only 65mW (typical) from a single 5V
Unipolar: 0V to 10V, 0V to 5V and 0V to 4V
supply. This easy-to-use device includes a sample-and-
Bipolar:
±
10V,
±
5V and
±
3.3V
hold, a precision reference, a switched capacitor succes- ■
Guaranteed No Missing Codes
sive approximation A/D and trimmed internal clock. ■ Serial I/O The input range is specified for bipolar inputs of ±10V, ■ Single 5V Supply ±5V and ±3.3V and unipolar inputs of 0V to 10V, 0V to 5V ■ Power Dissipation: 65mW Typ and 0V to 4V. Maximum DC specs include ±2LSB INL and ■ Power Down Mode: 50µW 16-bit no missing codes over temperature. It has a typical ■ SNR: 87dB Typ signal-to-noise ratio of 87dB. ■ Operates with Internal or External Reference ■ 28-Pin SSOP and 20-Pin SO Packages The ADC has a high speed serial interface. The serial ■ Improved 2nd Source to ADS7809 and AD977A output data can be clocked out using either the internal
U
serial shift clock or be clocked out by an external shift
APPLICATIO S
clock. A separate convert start input (R/C) and a data ready signal (BUSY) ease connections to FIFOs, DSPs and ■ Industrial Process Control microprocessors. ■ Multiplexed Data Acquisition Systems , LTC and LT are registered trademarks of Linear Technology Corporation. ■ High Speed Data Acquisition for PCs ■ Digital Signal Processing
U TYPICAL APPLICATIO 200kHz, 16-Bit Serial Sampling ADC Configured for
±
10V Inputs
200Ω 1 28 ANALOG INPUT R1IN VDIG 5V – 10V TO 10V 2 27 +
Nonaveraged 4096 Point FFT Plot
AGND1 VANA 10µF 0.1µF 100Ω 3 26 0 R2IN PWRD 33.2k f 4 25 SAMPLE = 200kHz R3IN BUSY f –20 IN = 1kHz 5 24 SINAD = 87.2dB NC CS THD = –100.1dB 2.5V 6 LTC1609 23 CAP NC + –40 2.5V 7 22 2.2µF REF NC + 8 21 –60 2.2µF NC R/C 9 20 AGND2 NC –80 10 19 MAGNITUDE (dB) NC TAG 11 18 SERIAL INTERFACE –100 NC NC 12 17 SB/BTC DATA –120 13 16 EXT/INT DATACLK –130 14 15 0 25 50 75 100 DGND SYNC FREQUENCY (kHz) 1609 TA01 1609 G06 1609fa 1
